One of the best how to videos I’ve seen, Kudos! Clear and fully documented. Love these Panasonic microwave ovens, but the weakness we’ve found is the microswitches failing. Have replaced them several times on a couple different ovens.
Great video! Couldn’t clear the H98 on the reset, so I followed your steps and removed the magnetron. On inspection, it looked ok - no crack - but I decided to go ahead and buy a replacement on eBay for C$65. It arrived today, installed it, and voila! Functioning microwave! Thank you so much! Another appliance saved from the landfill!
@@davetravelstheworld I'm sure you could change it, but I certainly wouldn't replace the magnetron unless you first check it for grounds while the oven is unplugged. Personally, I would use a VTVM for the ground check rather than a DVM. If the ground check turned up negative, I would then check the magnetron with a high voltage DC probe while the oven is running. Actually, I think you're looking at 1.5KVDC - 2.5KVDC being applied to the magnetron. Be VERY careful if you do use that high voltage DC probe while checking that magnetron as those high voltages are lethal.
We are so grateful to you. We had an H97 error due to trying to run off our generator due to a power outage. We just went several months to save money to buy a new inverter microwave. I stumbled across your video AND IT WORKED!! Just had to clear the code. THANK YOU!!!
Thank you for the video! After the 5V pass transistor shorted and dumped 18V into the main control IC on mine, I found a replacement board on eBay from someone saying their magnetron fried but the board was fine. Didn't think they'd save that the tube perviously failed in an EEPROM! That reset procedure made it happy again, thanks :)
Thanks for the tip, I'm Brazilian and I watched your translated video and you were able to demonstrate in a didactic and masterful way how to fix the microwave. Congratulations and success always.
You're a life saver! During a power failure yesterday, I used a small Honda generator to power my Panasonic inverter microwave oven. Unfortunately, the generator didn't have enough capacity to power the microwave oven. Well, after power was eventually restored to the house, I kept getting an H97 error with the Panasonic inverter microwave oven. By following your guide, I was quickly able to get the microwave oven back and running again. Thank you very much!
I had to replace the inverter board, one of the power caps was split and a trace had a spot burned off about the size of a pea. Once I had replaced the inverter board I could not clear the H97 error code until I found your procedure. It's all good now, thank you!
i love "how to" videos, and might be the best ever. NorCal715 has a great touch to show you exactly what he's talking about. Great lighting and focus. Great Job!!!!!!!
Can't thank you enough. Got the H97 error and thanks to your wonderful video I had the courage to replace the magneto myself. You have saved me a small fortune. Job done and inverter working perfectly.
Thankyou for the video. I just reset the system and she came back to life. Not sure why the error appeared in the first place though. Found this unit on the trash in my neighbourhood.
Wonderful video, thank you. I just picked up a Panasonic inverter microwave with grill function from a scrap heap and it has the H98 code. The grill works fine, but it would be pretty cool if I can get the microwave function working too. A brief glance online suggests it's worth around £250 GBP brand new. I don't have the fancy diagnostic tools (yet... maybe one day!) so my first port of call will likely be to pull the magnetron and check the magnets, assuming there's nothing visibly wrong with the inverter. Nothing better than getting stuff for free and making it work for cheap!
Thanks a lot!!! You really saved my day. Thanks to your video, I go out of the locke out. Im really, really appreciated. ( This was my job's microwave LOL)
I decided to test and see if I was ready for a power outage. I cranked up my 1800w(2200 peak) inverter generator. Ran the fridge and internet for 4 hours, no problem. Then I plugged in the same model NN-SA651S that you are working on(all by itself) Microwave ran about 30 seconds and quit, tried 2 more times, same result, except now it shows the H97 code. I spent a few hours checking diodes/full wave bridge rectifier, door switches, I figured the unit was toast! Then I found this video, reset the code, plugged it into the house outlet, and all is fine again. I noticed another commenter said they too had plugged it into a generator and it caused the error code! I bought an inverter generator because it is supposed to have clean power to run things like this, guess that's not completely true?
wow - ur amazing...i just got the mw heart attack warning...but most of what you said went above my head! Google says it'll cost 200-400$ to fix it....and you did it for $25! But I don't know electricals...bummer!
hi there... got a Panasonic with shorted power transistors on the power board. After replacing, I tested the unit but not heating is happening. Id like to check the HV entering the magnetron, I got the high voltage probe like the one in your video and Fluke multimeter but I'm not sure how to hook the probe to the meter. Could you please give me directions? Thank you very much
Fantastic video! I just pulled out the magnetron in my unit with same error code, and the magnets look in tact. Is it still likely to be that unit? Thanks!
When attempting to clear the code with the stop/reset -> open door -> start 3 times procedure instead of getting End I get 0052...not sure what to do. I have a replacement Magnetron
In your response to Chayo Darling's question about the magnets cracking, you said you believe it's from the heat of the high power magnetron. So is there some way to program the oven to always operate at P9 (power 9) without having to press the Power Level button twice each time you want to cook something ?
Hi! Do you know the model number of the inverter that is used for the microwave oven Panasonic NN ST651W? The repairing shop return my oven without the inverter installed. The 2technian" include in the package two inverters and a notesaying that all the inverters are similar, but he takes out the inverter of my oven and he is later confused what are the inverter that came installed originally. I must know the mentioned info to recover my original inverter.
Nice. I'm always surprised by the high number of interconnect cables present in such a stable design, probably has something more to do with interchangeable standard components than good design. Some people here have commented that servicing this to that degree is uneconomic compared to getting another, but these's the satisfaction of keeping from landfill and more importantly, there are people around who don't want to learn how to use new gear if they can avoid it. I'd be looking at getting that rust out of the chamber though. It soaks up a bit of the power delivered. Also be careful, the magnetron may use beryllium oxide ceramics for the stem and anntenna support. When chucking it out, seal it up carefully in something because the dust from it is a carcinogen, lethal if injested or breathed in (not sure how much, don't want to find out).
Best how-to vid I'm seen - My problem is that the code reset (model NN-SA651S with H98 code) won't take. Instead of the END message I get a "0277" message? Tried a number of times all with the same result. I DLed the service manual and nothing about that code could be found? I'm not setup to test anything other than door switches so with a replacement mag running about $50 and finding another post mentioning the inverter board may be bad, anyone know if I should take a chance? love the oven and the $130 Sharp I replaced it with in nowhere near as good.
Short the 2 large leads from the inverter board to the magnetron to chassis ground to discharge any voltage, then remove them from the magnetron. try the reset, start it and see if it runs for a few seconds. If it does then the magnetron is the issue.
What causes the h97 code? I have to watch the first 2 min of this video at least once a month to get rid of the h97 code, I'm surprised haven't been able to remember the order of what to press yet! So everytime I put a paper towel in to cover something greasy or sometimes microwaveable popcorn it will shut off at least 2-3 times before it throws me out to the h97 code. But I'm wondering why? I've even looked in the user manual to see if I shouldn't use paper towels and it says it's fine? In the video you go over the h98 code and how it stops heating, but mine still heats even when it turns in for 20 sec at a time before it throws the h97 code. So what is the h97 code mean and should I be replacing or fixing something so that I dont end up with a h98 code and have a bigger problem on my hands? I also want to say thank you!!! Without videos like yours I would end up buying a whole lot of new appliances or spending money to service things that really anyone with some basic knowledge can fix with instructions from amazing people like you that take time to show us what we need to know! Thanks!!
In my experience it's always been a weak magnetron that has been tripping the H97 and possibly H98 codes in my microwaves Make sure the air vent on the back is clean as well as the tips of the fan blades, that can cause reduced airflow and damage the magnetron
Question: On the Inverter board. There are 2 Push-in inlet, one with Yellow, Brown and Orange wires this I don't have problem. The next in-let has White, and two Brown, I would like to know can this in-let be used on either way? Thank you bro.
still might be a bad magnetron, measure the current draw at the ac input you should see between 12 and 18 amps at 120 volts, if you only see 2-3 amps its probably the mangetron. Also if you can get a high voltage probe, measure the high voltage (5000-6000 volts) at the magnetron input.
I have 25 years of tv and MW repair I would consider that damage to the paint inside the cavity before deciding to repair as the MW energy thinks the bare or rusty spots are food and strains the magnetron.
Many high end microwaves use a stainless cavity that is not painted. The paint is transparent to the microwave energy and as long as there is no moisture there will be no heating. If the rust particles grow to become close to 1/4 wavelength of the 2.4ghz microwave then they might react. Just to be sure I used the IR camera to see if the rust (rust has a high emissivity of thermal energy because of all the little pockets) areas were heated and there was negligible differences.
I have rust/burn spots on the paint in the cavity that I suspect as my problem. I get the H97 code, and can clear it. The oven will then run for 20-30 seconds before shutting down again. It may do this a couple of more times before the H97 code reappears. I don't have an IR Camera so I cannot verify if it's a paint problem though. The oven does generate some heat during this process, not enough to pop my popcorn completely.
Excellent video. My Panasonic inverter Microwave blows fuse while sitting idle. Sometimes after one hour and sometimes after one or few days while door stays closed. I checked all parts are ok and the microwave works good while fuse is not blown. Please give your comments. Thanks,
First replace the monitor switch and carefully inspect the other 2 switches to make sure they are fully actuated when the door is closed. Let me know how it goes.
I have a Panasonic Inverter microwave oven model NN-ST680S. I bought it brand new 5 years ago, and today for the first time the unit stops after about 10-15 seconds and displays H97 on the readout. My model has 10 user adjustable power levels with 10 being maxiumum (1100 watts). I have noticed that if I select power level 5 (600 watts) or below, the microwave will operate normally (no H97 error) and can still be used, although cooking time will be longer as expected. On the higher power levels I can hear a clicking sound when initially operated and then it cuts out and displays H97. I just turn off the power switch and back on again to reset and be able to use again (on power level 5). I assume this does the same thing instead of having to perform the unlock process you demonstrated. I'm not sure how long my microwave will continue to work like this on reduced power, but it looks like I'll just buy a new replacement microwave soon since they are relatively inexpensive these days. Great video though for people that prefer to fix it themselves.
I have a question. How do I connect back the two Red power from Inverter board to the Manegtron. (Which is Left and which is Right? Hope to hear from you soon. Dave
It does not matter which way you connect them. High voltage is supplied on both leads and the reason there are two leads is for the tube filament heater.
Sorry, My earlier message was not clear to you. On the Inverter Board, there are 3 sets of wire attached to the board. First- set was the 2 Red power wire, second-set there are Yellow, Brown and Orange. Now the 3rd-set that I am concern about It has one White and two brown.the in-let fit either way. I am not sure is the white point towards the front panel or towards the back of the Microwave. I hope this message is clear to you. Thank you.
I live in the United 🇬🇧 Kingdom, and my (non-inverter) Hinari branded microwave is 19 years old, and works as good as the day it was bought in 2005 for £50 / $64. I think my magnetron is made by Panasonic.
Hi. I've got this model. Upon pressing start it makes a buzzing sound every second and eventually shuts off. No heating. "Cool" displayed and no button response. Unplugging and trying again gives buzzing sounds again. Would this be magnatron? Update. I've ordered diodes as they were reading a tiny bit of leakage. I'll be back. ***.EDIT. diodes no difference. Put used magnatron in.same prob. My ncv test meter shows big voltage on maggy wires. Possible used item I bought is faulty but no shorts on it and terminals read 4ohm. I get h98 , COOL and 0.00 errors appear at different attempts after 25s. No heating at all. Life goes on.
@@norcal715 I've disconnected fan and maggy and sound buzzing is different but continues. Guess I'll play with inverter circuitry while taking every precaution not to kill myself by electrocution. Cheers.
When performing the reset,I pressed the stop reset pad three times.I get a code 0041.Can anyone tell me what this means.Please help I (UPDATE) found out that after the 0041 code. Press power level then (start or stop/reset) fixed my problem
I can replace it with a brand new one for $160, and I'm only out of having one for a couple of hours. That sounds pretty good compared to the time, hassle, and cost of fixing it.
@@norcal715 I hear that! For over six years in my huge apartment complex, I have trash-picked so many items, that if I had kept them all, I'd EASILY be worthy of an episode of "The Hoarders." Among them are a multitude of vacuum cleaners and pedestal fans, most of which are salvageable. Also some microwaves (including the same Panasonic model you have in this video with H97). But so far, I am too gun-shy to fix those. But occasionally I have found a working one. What I don't keep or give away to friends and relatives, I give to the Goodwill. My local Goodwill also accepts scrap metal and scrap electronics. This means I pull out even busted electronics out of the dumpsters! Our condo manager even paid me once to haul away 7 junk TV's. Once, I even found an Intertek queen size power inflatable mattress that worked (though it did leak somewhat), and a handy carrying basket for it. I gave that away over Next-Door.com.
I have a Panasonic inverter 1200W high power that turns off after 45 seconds.. done all the possible DIY ... model number NN-SC668S MANUFACTURED 2020.. it doesn't heat up and stops a 45 seconds..what could be its problem?
This is from another service manual, I do not have one for your model, but they all opearte pretty much the same. 1. Oven stops in 3 seconds after pressing [Start] pad. No input AC is supplied to H.V.Inverter (U) CN702 terminals 1. Latch Switch 2. Power relay RY1 3. Loose lead wire connector CN701, CN702 4. H.V. Inverter (U) Oven stops in 23 seconds after pressing [Start] pad. H.V.Inverter (U) operates by the control signals from DPC but magnetron is not oscillating 1. Magnetron 2. Loose lead wire connector CN703 3. H.V. Inverter (U)
Would be helpful to have a link to those troubleshooting instructions. I'm trying to troubleshoot mine but can't read that page on the video. Magnetron appears to be fine. What are the other steps and how do I find a replacement HV board?
@@norcal715 Thanks! According to the manual diagnostics the HV board is fine. So it must be the magnetron. Unfortunately doesn't look like they are available anymore.
One of the best how to videos I’ve seen, Kudos! Clear and fully documented.
Love these Panasonic microwave ovens, but the weakness we’ve found is the microswitches failing. Have replaced them several times on a couple different ovens.
Great video! Couldn’t clear the H98 on the reset, so I followed your steps and removed the magnetron. On inspection, it looked ok - no crack - but I decided to go ahead and buy a replacement on eBay for C$65. It arrived today, installed it, and voila! Functioning microwave! Thank you so much! Another appliance saved from the landfill!
where did you order your Magntron from? Did you get from CHINA? What type microwave model? I'm handy man but you think i can change?
@@davetravelstheworld I'm sure you could change it, but I certainly wouldn't replace the magnetron unless you first check it for grounds while the oven is unplugged. Personally, I would use a VTVM for the ground check rather than a DVM. If the ground check turned up negative, I would then check the magnetron with a high voltage DC probe while the oven is running. Actually, I think you're looking at 1.5KVDC - 2.5KVDC being applied to the magnetron. Be VERY careful if you do use that high voltage DC probe while checking that magnetron as those high voltages are lethal.
We are so grateful to you. We had an H97 error due to trying to run off our generator due to a power outage. We just went several months to save money to buy a new inverter microwave. I stumbled across your video AND IT WORKED!! Just had to clear the code. THANK YOU!!!
Same cause and fix worked for me, except mine was H98. Thanks!
Thank you for the video! After the 5V pass transistor shorted and dumped 18V into the main control IC on mine, I found a replacement board on eBay from someone saying their magnetron fried but the board was fine. Didn't think they'd save that the tube perviously failed in an EEPROM! That reset procedure made it happy again, thanks :)
Thanks for sharing your H98 experience. Mine read 0.2 ohms and had the metallic tip of the magnetron's gun half charred down.
Thanks for the tip, I'm Brazilian and I watched your translated video and you were able to demonstrate in a didactic and masterful way how to fix the microwave. Congratulations and success always.
You're a life saver! During a power failure yesterday, I used a small Honda generator to power my Panasonic inverter microwave oven. Unfortunately, the generator didn't have enough capacity to power the microwave oven. Well, after power was eventually restored to the house, I kept getting an H97 error with the Panasonic inverter microwave oven. By following your guide, I was quickly able to get the microwave oven back and running again. Thank you very much!
Did you fixed it ? It doesn’t work for me .
@@maggielaw6201 Yes, I fixed the Panasonic inverter microwave oven. Try following the guide again, and see what happens. I hope for the best!
I had to replace the inverter board, one of the power caps was split and a trace had a spot burned off about the size of a pea. Once I had replaced the inverter board I could not clear the H97 error code until I found your procedure. It's all good now, thank you!
i love "how to" videos, and might be the best ever. NorCal715 has a great touch to show you exactly what he's talking about. Great lighting and focus. Great Job!!!!!!!
You did an awesome job walking through that. Thank you!
Did you fixed it ?
Can't thank you enough. Got the H97 error and thanks to your wonderful video I had the courage to replace the magneto myself. You have saved me a small fortune. Job done and inverter working perfectly.
Glad I could help
Thanks! For taking time to educate. I will certainly attempt to fix mine with a similar replacement part.
Your videos are awesome! Always look forward to a new one.
Thankyou for the video. I just reset the system and she came back to life. Not sure why the error appeared in the first place though. Found this unit on the trash in my neighbourhood.
OUTSTANDING! Thank you. Instant fix.
Thank you for posting this video. I totally just fixed my microwave.
Wonderful video, thank you. I just picked up a Panasonic inverter microwave with grill function from a scrap heap and it has the H98 code. The grill works fine, but it would be pretty cool if I can get the microwave function working too. A brief glance online suggests it's worth around £250 GBP brand new.
I don't have the fancy diagnostic tools (yet... maybe one day!) so my first port of call will likely be to pull the magnetron and check the magnets, assuming there's nothing visibly wrong with the inverter.
Nothing better than getting stuff for free and making it work for cheap!
Thanks you so much my dad did exactly what you said and it fixed our microwave
again, one of the best repair videos on you tube.
Thanks a lot!!! You really saved my day. Thanks to your video, I go out of the locke out. Im really, really appreciated. ( This was my job's microwave LOL)
Useful video, Good Job! Thank you!
THanks for sharing your experience and knowledge
I díd exactly what you said and “IT WORKS AGAIN” just reset it 👏👏👏 (sorry for my english is not very good) thank you from Mexico City!
I decided to test and see if I was ready for a power outage. I cranked up my 1800w(2200 peak) inverter generator. Ran the fridge and internet for 4 hours, no problem. Then I plugged in the same model NN-SA651S that you are working on(all by itself) Microwave ran about 30 seconds and quit, tried 2 more times, same result, except now it shows the H97 code. I spent a few hours checking diodes/full wave bridge rectifier, door switches, I figured the unit was toast! Then I found this video, reset the code, plugged it into the house outlet, and all is fine again. I noticed another commenter said they too had plugged it into a generator and it caused the error code! I bought an inverter generator because it is supposed to have clean power to run things like this, guess that's not completely true?
Very useful video appreciated. Thanks from Panama City
Your video is good, I followed your instructions changed door top switch but still no luck
Great video. good repair.
Thanks bro this really help me out, just now
Wow thank you so much you saved me 200 dollars
Nice video, Most appreciated!
clear and very informative.
Thanks
Wow! Great repair video, thanks to you!
wow - ur amazing...i just got the mw heart attack warning...but most of what you said went above my head! Google says it'll cost 200-400$ to fix it....and you did it for $25! But I don't know electricals...bummer!
Thank you so much! Saved my day! Cheers!
This is outrageous. Had a GE for 22 yrs and it went today. Gotta replace it with one of these “new” models that won’t last 1/10 of that time.
where did u get the trouble shooting guide from?
hi there... got a Panasonic with shorted power transistors on the power board. After replacing, I tested the unit but not heating is happening. Id like to check the HV entering the magnetron, I got the high voltage probe like the one in your video and Fluke multimeter but I'm not sure how to hook the probe to the meter. Could you please give me directions? Thank you very much
Thank you ... Greetings from México city.
Fantastic video! I just pulled out the magnetron in my unit with same error code, and the magnets look in tact. Is it still likely to be that unit? Thanks!
Does the factory reset method work on other Panasonic models?
When attempting to clear the code with the stop/reset -> open door -> start 3 times procedure instead of getting End I get 0052...not sure what to do. I have a replacement Magnetron
Norcal for President. Great repair as always. IT doesnt Matter if its cost effective. Its about saving landfill and Electro scrap.
Hi, how can I get the instructions?thank you
Nice repair.
muy buena explicacion
You are the best!
In your response to Chayo Darling's question about the magnets cracking, you said you believe it's from the heat of the high power magnetron. So is there some way to program the oven to always operate at P9 (power 9) without having to press the Power Level button twice each time you want to cook something ?
Not that I am aware of. Just make sure the fan blades are clean and the grates on the back, in the cavity, and on the side are clear of dust and gunk.
My is h97 , after reset ,the mic ran for 30 seconds then stopped, is it the magnetron ?
Did you try ohming the Magnetron? Not everybody has the tools.
Thanks sir.and for video so useful.
Can anything be done proactively to prevent the magnets from cracking? like a heater hose clamp or wire clamp?
I believe they crack from the heat of the high power magnetron and marginal cooling.
Thank you Fixed my issue!¡!
Hi! Do you know the model number of the inverter that is used for the microwave oven Panasonic NN ST651W? The repairing shop return my oven without the inverter installed. The 2technian" include in the package two inverters and a notesaying that all the inverters are similar, but he takes out the inverter of my oven and he is later confused what are the inverter that came installed originally. I must know the mentioned info to recover my original inverter.
Nice. I'm always surprised by the high number of interconnect cables present in such a stable design, probably has something more to do with interchangeable standard components than good design. Some people here have commented that servicing this to that degree is uneconomic compared to getting another, but these's the satisfaction of keeping from landfill and more importantly, there are people around who don't want to learn how to use new gear if they can avoid it.
I'd be looking at getting that rust out of the chamber though. It soaks up a bit of the power delivered. Also be careful, the magnetron may use beryllium oxide ceramics for the stem and anntenna support. When chucking it out, seal it up carefully in something because the dust from it is a carcinogen, lethal if injested or breathed in (not sure how much, don't want to find out).
Best how-to vid I'm seen - My problem is that the code reset (model NN-SA651S with H98 code) won't take. Instead of the END message I get a "0277" message? Tried a number of times all with the same result. I DLed the service manual and nothing about that code could be found? I'm not setup to test anything other than door switches so with a replacement mag running about $50 and finding another post mentioning the inverter board may be bad, anyone know if I should take a chance? love the oven and the $130 Sharp I replaced it with in nowhere near as good.
Short the 2 large leads from the inverter board to the magnetron to chassis ground to discharge any voltage, then remove them from the magnetron. try the reset, start it and see if it runs for a few seconds. If it does then the magnetron is the issue.
Huge help!! Thanks!!
I've had mine less then a year bought it brand new from panasonic and here I am h97
What causes the h97 code? I have to watch the first 2 min of this video at least once a month to get rid of the h97 code, I'm surprised haven't been able to remember the order of what to press yet! So everytime I put a paper towel in to cover something greasy or sometimes microwaveable popcorn it will shut off at least 2-3 times before it throws me out to the h97 code. But I'm wondering why? I've even looked in the user manual to see if I shouldn't use paper towels and it says it's fine? In the video you go over the h98 code and how it stops heating, but mine still heats even when it turns in for 20 sec at a time before it throws the h97 code. So what is the h97 code mean and should I be replacing or fixing something so that I dont end up with a h98 code and have a bigger problem on my hands?
I also want to say thank you!!! Without videos like yours I would end up buying a whole lot of new appliances or spending money to service things that really anyone with some basic knowledge can fix with instructions from amazing people like you that take time to show us what we need to know! Thanks!!
In my experience it's always been a weak magnetron that has been tripping the H97 and possibly H98 codes in my microwaves Make sure the air vent on the back is clean as well as the tips of the fan blades, that can cause reduced airflow and damage the magnetron
hi we have Similar issue how do we reset the Micro taking it apart
@phongntp vlogs thanks sir for me one video helpful too.This video same a lot of my video about error h97,h98 or h33,h54,h56,,for microwave hitachi.
Question: On the Inverter board. There are 2 Push-in inlet, one with Yellow, Brown and Orange wires this I don't have problem. The next in-let has White, and two Brown, I would like to know can this in-let be used on either way? Thank you bro.
not quite sure what you are asking?
What if the magnetron is NOT cracked? When I took mine out, it was it good shape. What else could cause the H98 error then?
still might be a bad magnetron, measure the current draw at the ac input you should see between 12 and 18 amps at 120 volts, if you only see 2-3 amps its probably the mangetron. Also if you can get a high voltage probe, measure the high voltage (5000-6000 volts) at the magnetron input.
Super !!!! Thank You Very Much!!!!!!
Gracias saludos
Muchas gracias
LIFE SAVER!!!
I have 25 years of tv and MW repair I would consider that damage to the paint inside the cavity before deciding to repair as the MW energy thinks the bare or rusty spots are food and strains the magnetron.
Many high end microwaves use a stainless cavity that is not painted. The paint is transparent to the microwave energy and as long as there is no moisture there will be no heating. If the rust particles grow to become close to 1/4 wavelength of the 2.4ghz microwave then they might react. Just to be sure I used the IR camera to see if the rust (rust has a high emissivity of thermal energy because of all the little pockets) areas were heated and there was negligible differences.
I have rust/burn spots on the paint in the cavity that I suspect as my problem. I get the H97 code, and can clear it. The oven will then run for 20-30 seconds before shutting down again. It may do this a couple of more times before the H97 code reappears. I don't have an IR Camera so I cannot verify if it's a paint problem though. The oven does generate some heat during this process, not enough to pop my popcorn completely.
Thanks for your video
Excellent video. My Panasonic inverter Microwave blows fuse while sitting idle. Sometimes after one hour and sometimes after one or few days while door stays closed. I checked all parts are ok and the microwave works good while fuse is not blown. Please give your comments. Thanks,
First replace the monitor switch and carefully inspect the other 2 switches to make sure they are fully actuated when the door is closed. Let me know how it goes.
I have a Panasonic Inverter microwave oven model NN-ST680S. I bought it brand new 5 years ago, and today for the first time the unit stops after about 10-15 seconds and displays H97 on the readout. My model has 10 user adjustable power levels with 10 being maxiumum (1100 watts). I have noticed that if I select power level 5 (600 watts) or below, the microwave will operate normally (no H97 error) and can still be used, although cooking time will be longer as expected. On the higher power levels I can hear a clicking sound when initially operated and then it cuts out and displays H97. I just turn off the power switch and back on again to reset and be able to use again (on power level 5). I assume this does the same thing instead of having to perform the unlock process you demonstrated. I'm not sure how long my microwave will continue to work like this on reduced power, but it looks like I'll just buy a new replacement microwave soon since they are relatively inexpensive these days. Great video though for people that prefer to fix it themselves.
Its worth a $25 magnetron to find out if that's the problem. If not you will have a spare magnetron
j'ai un micro onde panasonic NN-ST632W et j'ai un affichage de H97, comment faire pour enlever cette affichage.
I have a question. How do I connect back the two Red power from Inverter board to the Manegtron. (Which is Left and which is Right? Hope to hear from you soon. Dave
It does not matter which way you connect them. High voltage is supplied on both leads and the reason there are two leads is for the tube filament heater.
I tried what you said to do i get the code: 0697, after I push the stop/reset button 3 times. You wouldn't happen to know what that means do you?
Hey I'm getting the same problem but the magnetron magnets did not crack or anything
H97 code on ours, can't proceed to the last press of start button, displays "0044" after 3 pushes of the reset button
Found out have to hold start button again, it cleared the code and works but decided to warranty return it anyway
Big help
ThankS 👍
Where do you get the new limit switch bracket? I need a new one also. Thank you. I subscribed. Great video.
Encompass parts has them in stock
@@norcal715 Thank you. Have a great weekend.
Does it release a chemical smell? Like smoke.
Mine displayed the code H97. Once I did the reset, it worked again so I didn’t replace anything. Now a week later, it’s spinning but not heating up?
Most likely a weak magnetron. Replace it and do the reset again.
Perfect, thank you!!!!!
Sorry, My earlier message was not clear to you. On the Inverter Board, there are 3 sets of wire attached to the board. First- set was the 2 Red power wire, second-set there are Yellow, Brown and Orange. Now the 3rd-set that I am concern about It has one White and two brown.the in-let fit either way. I am not sure is the white point towards the front panel or towards the back of the Microwave. I hope this message is clear to you. Thank you.
The White wire.
If it is the one that plugs on top of the relay, then it should not matter. The relay is just closing the contacts.
@@norcal715 so I can plus in either side?
I live in the United 🇬🇧 Kingdom, and my (non-inverter) Hinari branded microwave is 19 years old, and works as good as the day it was bought in 2005 for £50 / $64. I think my magnetron is made by Panasonic.
Hi. I've got this model. Upon pressing start it makes a buzzing sound every second and eventually shuts off. No heating. "Cool" displayed and no button response. Unplugging and trying again gives buzzing sounds again. Would this be magnatron? Update. I've ordered diodes as they were reading a tiny bit of leakage. I'll be back. ***.EDIT. diodes no difference.
Put used magnatron in.same prob. My ncv test meter shows big voltage on maggy wires. Possible used item I bought is faulty but no shorts on it and terminals read 4ohm. I get h98 , COOL and 0.00 errors appear at different attempts after 25s. No heating at all. Life goes on.
possibly an inverter failure. hard to tell without looking at it though.
@@norcal715 I've disconnected fan and maggy and sound buzzing is different but continues. Guess I'll play with inverter circuitry while taking every precaution not to kill myself by electrocution. Cheers.
When performing the reset,I pressed the stop reset pad three times.I get a code 0041.Can anyone tell me what this means.Please help I (UPDATE) found out that after the 0041 code. Press power level then (start or stop/reset) fixed my problem
Si aprieta start y no pita que hago. No puedo resetear
beilliant thank you
I can replace it with a brand new one for $160, and I'm only out of having one for a couple of hours. That sounds pretty good compared to the time, hassle, and cost of fixing it.
The world should get out of the throwaway mentality companies are pushing on everyone.
@@norcal715 I hear that! For over six years in my huge apartment complex, I have trash-picked so many items, that if I had kept them all, I'd EASILY be worthy of an episode of "The Hoarders." Among them are a multitude of vacuum cleaners and pedestal fans, most of which are salvageable. Also some microwaves (including the same Panasonic model you have in this video with H97). But so far, I am too gun-shy to fix those. But occasionally I have found a working one.
What I don't keep or give away to friends and relatives, I give to the Goodwill. My local Goodwill also accepts scrap metal and scrap electronics. This means I pull out even busted electronics out of the dumpsters! Our condo manager even paid me once to haul away 7 junk TV's. Once, I even found an Intertek queen size power inflatable mattress that worked (though it did leak somewhat), and a handy carrying basket for it. I gave that away over Next-Door.com.
Thank you ,you save 100$ for me ........I fix it..........
I have a Panasonic inverter 1200W high power that turns off after 45 seconds.. done all the possible DIY ... model number NN-SC668S MANUFACTURED 2020.. it doesn't heat up and stops a 45 seconds..what could be its problem?
This is from another service manual, I do not have one for your model, but they all opearte pretty much the same.
1. Oven stops in 3 seconds after
pressing [Start] pad.
No input AC is supplied to H.V.Inverter (U)
CN702 terminals
1. Latch Switch
2. Power relay RY1
3. Loose lead wire connector CN701, CN702
4. H.V. Inverter (U)
Oven stops in 23 seconds after
pressing [Start] pad.
H.V.Inverter (U) operates by the control signals
from DPC but magnetron is not oscillating
1. Magnetron
2. Loose lead wire connector CN703
3. H.V. Inverter (U)
Nice.
I have one of that japonese model, and it shows H97 error, thanks alot!
My microwave is pulling 17amps after resetting the h97 h98 code why is that
Awesome
Thanks
Thanksm you.
What is the amp meter clamped to?
I am measuring the current on the hot lead of the power cord. You could clamp wither hot or neutral as it enters the microwave. with the same results.
Would be helpful to have a link to those troubleshooting instructions. I'm trying to troubleshoot mine but can't read that page on the video. Magnetron appears to be fine. What are the other steps and how do I find a replacement HV board?
Go to elektrotanya.com in the upper right click "SM search" type in your model number and you can download the entire service manual.
@@norcal715 Thanks! According to the manual diagnostics the HV board is fine. So it must be the magnetron. Unfortunately doesn't look like they are available anymore.
Hi friend my name is rehan
This method is not working on my oven it is convection microwave oven please i need your help
Thanks!
Thank you!
👌
How to make a simple device like a microwave into an over complicated bag of shit.