Rheem Defrost Sensor Problems!
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- Опубліковано 7 лют 2025
- In this video we talk about the problem Rheem is having with there defrost control boards and sensors. Any techs thats having the same issues, please leave a comment. Hope you enjoy.
Intro Music: Bubbles
Site: icons8.com/music/
I just found your video and thank god for UA-cam I have 50 of these units and I’ve replaced so many boards and sensors I can’t keep count. You just saved me so many hours 😂
Thanks for the easy to follow video! Had a heat pump installed in 2016, iced up the last two years in winter and finally stopped cooling this summer. Purchased the sensor in this video and fixed the cooling. Hoping it fixes the icing in winter. No experience with HVAC and was able to do this in less than 30 minutes. Thanks again!!!
I would of not known this if this wasn’t for your video, thanks for sharing👍
Just had a call for the same issue. No Heat, and outdoor unit frozen block of ice. Switched out coil and ats and defrost board. With all new part numbers from your reference. Thank you very much.
I’ve had the same freezing-up issue for a few months now since heat was called for. I live in northwest Ga. My unit a 2018 4ton. After pulling the meter out I realized the board and both sensors were bad. Thanks again for bringing this to attention, specifying the replacement parts and taking the time to video it sir. After replacing all 3 it’s been working great!
Brad
Thank you I am going to try this. Last year I had four HVAC techs come to my house and basically replaced everything. The last tech that came to my house cleaned the senor area with sandpaper and that seemed to correct the problem. now just this week the unit would not kick into defrost mood. I am going to order the part that you recommend and see it that correct the problem, thank you
Thank you for the video. Helped me out alot. I've had this Rheem unit 4 years now and it's been nothing but problems. I know one thing a will never get a Rheem again!
Great info. I just purchased a board yesterday.pkan to replace it today but with that insight I will hold off until I get the right parts." My hat goes off to you"!.
Yes! i have had the same issue. Thank you for the information. I now have the separate coil sensor on order instead of the board/sensor kit. I did not know that there has been issues with the sensors. Thanks again! Kerry
Good evening. I had a newer rheem about 6 years old, very similar to this unit. I had a bad defrost board and replaced the board with the sensors. Called back today with defrost not working, I had replaced the board a few days ago. upon arrival found un it iced up. shorted the pins to put into defrost and only stayed in defrost for less than 30 seconds with sensor incased in ice. This video is very helpful and now i know to get the new sensors. Thanks again
This is the exact issue I'm having with my 2 month old Rheem heat pump. The tech just replaced the faulty defrost board but didn't use the better sensors. Thank you for this video!!
We are having the same issue in Virginia. Going to try your solution as I've been racking my brain with this unit.
Yes so true I had problems with 5 of them my self I did change the sensor that was the problem sensor that comes with the kit it’s no good whatsoever , great video keep them coming great stuff and stay safe out there
Having issues in Idaho as well house was built 2017 I burnt out my compressor motor last winter $$$$$ , it was stuck in defrost mode changed the board out two days ago, now it won’t go into defrost mode , I’m a industrial refrigeration operator so your video was very helpful my local hvac company I got the board from just gave me two new sensors so imma try that
Should fix the problem! Glad I could help. I would like to get into some more refrigeration work. Always thought it was really interesting.
Thank You for sharing this information. This will save me a lot of time.
Thanks for video! I am having same problem with new install at my brothers house.
Thanks for the video. My Rheem system is a little over a year old and it sounds like this is likely why it stopped working. Both LED 1 and 2 are solid on (Coil Sensor Failure).
Yep that would be it
Just changed one tonight it works I’m hoping it does not fail thanks for that advise!
Thank you for this very valuable and timely information.
Great video! ...just ran into this with system?
Yes! We've had the same problem on the 2018 heat pumps (two stage in this case). A slug fried the original board. Replaced the board, but not the sensors (which tested OK using an ohm meter). Fine in cooling mode, but in heating mode, needless defrosts all the time. Very short defrost cycles, too, so hard on the system and turns on the resistance heaters needlessly. I thought that setting the defrost termination at 70 was the error, but no difference regardless of which of the three settings we use.
SO, should we replace the new board AND both sensors or just the two new sensors?
I find that board part number 47-102684-104 has been replaced by 47-102684-204. Is it safe to assume that the 104 to 204 is compatible?
ALSO -- these outdoor unit cases rattle like crazy. Is there some weatherstripping missing that we can add to end the rattle? It seems that the metal case around the coil is what is loose and missing some sort of vibration dampening.
Thank you for your helpful video!
I have the same Rheem heat pump and my board does not have the OAT sensor wire on the unit. Should I have that sensor?
What is up with these coil thermistors? I have had the ONLY TWO Honeywell DB7110U1000 defrost controls I bought forTRUCK STOCK, have their coil thermistors go bad within a week of installation.
First time I just replaced the thermistor but the second time I also exchanged the control for fear that the control somehow destroyed the thermistor???
Weird, over 30+ yrs of calls, this is the first time I ever ran into bad sensor issues under warranty. Thanks for the RHEEM INFO! I'll keep an eye out!
I had a problem with the defrost board blowing the 3a control fuse. Could this be a similar problem?
Thank you I having that same problem with a Lennox
What happens when you have replaced the board and the sensors with the better parts and both LED are still flashing.
Do you have to replace the board if you replace the sensor?
I have 2 of the same units. 1 no problems the other issue after issue after issue board been replaced multiple times under warranty. I’m going to try this and see if this fixes it. Thank you!
Thank you for the information, great help.
Interesting. We haven't been having problems with new Rheem units, but with Carrier and Lennox.
I was working on a 2 stage heat pump from 20 and the error it was throwing was the coil failure. Bypassed the board until I can get a new board and sensor after the weekend but they are still having problems cooling.
Im dealing with a year old Rheem package heat pump. I rrplaced both sensors and next day it froze again. The tech that went out replaced board and sensors again. Next day froze again. Dont know what else to do. Any suggestions?
Had my Rheem instead this past April. Since turning cold in Maryland and having to turn the heat on it's been making a loud trumpet like or whale call sound before the fan comes on. I was told it was the defrost mode. Is this normal or is this part of the board/sensor issue?
OCT & OAT.
What do these letters mean?
wow thanks dealing with the issue right now
Awesome
Would this bad sensor cause my condenser fan to cycle on and off even while the compressor is running fine? My fan only runs for about five seconds and then shuts off for about minute and then comes back on for five seconds. Then compressor gets hot and shuts everything down. My defrost board is flashing two blinks so thinking this is the problem. Does it for ac and heat pump modes. Thanks
No this would just effect the defrost in heating. Sounds like it may be a bad board, motor, or capacitor? Can't say for sure unless there's more information given.
Aren't these sensors supposed to be mounted in the middle of the coil?
Coil sensor part number?
Come to tunnel hill Georgia please and fix mine please.. I have had it changed 3 time already. Please fix it
Thanks for the heads up
on the board in the condenser the little led lights are solid re dwould you know what code that is ,put new compresserror in but will only hum wont start up old compressrror came complete apart inside thank you for your time
It will say what each fault code is on that board. It's really small so you got to get up close to it.
@@HVACTechTips ok thank you
Thanks for sharing.
Have you checked the ohms on the bad sensor? I have had one Rheem system so far freezing up. The sensor tested fine. I did a force defrost on the board a couple weeks ago. Its been running fine since.
how do you force the defrost??
I have a RP2060BJVCA 2 months old system, and the service guy said that my 410A levels look good, Pressure looks good, he checked system during the day when it was 40 degrees. Defrosted fine during the daytime but it won't defrost during the colder nights (28 Degrees) and just shuts down without going into defrost mode. So then it wants to start up with frost on coil. Please someone tell me where to start looking for the problem.
Same thing in our area.
What have been the problems occuring that result in changing the board. I've had my board and sensor changed recently And the unit seems to be decorating too often and I have excessive amount of water building up to ice under my unit to the point ground is so saturated the unit is starting to lean
It’s going to stay wet underneath the unit as long as it is cold outside and heating
Two inches of ice surrounding the whole unit?
@@HVACTechTips two inches of thick ice and then some surrounding the whole unit? This didn't occur with my former unit that was there for 14 years.
Yea something is wrong. It should be defrosting the ice
@@HVACTechTips surrounding meaning on the ground not the unit itself. I've never seen this wish my old unit. And this unit has both a regular defrost for 2 mins. Then it will also energize..the fan will spin for 1 second and a defrost will take place for 30 seconds before the fan then comes on in heat mode. The HVAC co says this is normal for Ruud ????
Exact same unit. Exact same issue. My board has the 2 solid lights and eventually locks out. Do you have any insight on how I can purchase these parts? They're not available on Rheem's website and want me to contact a PRO. I was hoping to perform this repair myself.
You will have a really hard time getting it yourself. It will be best to contact a company. The board and sensor will be under warranty so you would only have to pay labor anyways.
Part#?
Mines happing now… 90 degrees in the house in Arizona
Hi, thanks for the video! I was told that the new kit part# 47-102684-204 has the new sensors with the board which replaces the old kit 4710684-104 that had the bad sensors, can any anyone confirm that the new 208 kit is now good, board and sensors?
Dealing with it now
Nice…👍
Thanks I have the issue.
What does it mean if just light 2 is blinking
It should say on the actual board
👍👍
Same problem here in NC. Im a newer tech but cant help but notice the constant calls for frozen units due to sensor failures. I like to check everything before replacing the parts, but its a habit to replace them “just in case”. (I do warranty mainly)
Cannot get my Rheem unit tondo shit 🤣 the to red led lights are on. Will not go of unit will not do a thing im was going to replace the sensor like it says on the board guess ill do both of those steps the sensors and board
I have a 4 month old rheem sensor on bottom inside unit light ran red, called th.e installers, they blamed in on filter, put a new filter less than a month a go.happened again tonight told my son it froze up, told me it was the filter,,so sick of this, I live in Georgia..ready to get a second opinion..So sick of this..My son paid for it, he is in Alanta, I \live in Gainesville.. The compamy is an hour away.I don't know what to do
Is the part # of the temp sensor labeled on the temp sensor? I think mine is bad but I don't know which one goes for my old heil 10 unit.. any suggestions
More reasons to just stick with a basic a/c
Maybe time to call TV reporters, let the world know,😢😢
Hi there. Thanks for the video. I had a question though. I've been having a defrost issue with my Rheem Heat Pump. Defrost board and sensors were changed but the problem is still there. I've got the 47-102684-204 board. Do you happen to know if my board has the same issue asbthe board you showed in your video? Thanks!
It’s more about which sensor you have. To be safe I would replace the sensor
@@HVACTechTips thank you!