If you are wondering about performance details and costs we've experienced with a Mr Cool Universal heat pump, then be sure to check out our Mr Cool HVAC playlist. ua-cam.com/play/PLExVGissIl-GdKsUBhF3c0fQ6E_o6oOaZ.html We have tried to answer as many questions as we could imagine in the 17+ videos in this playlist - hopefully they help you! The price of the unit we bought is around $3800 ( as of June 2024) on Amazon : 2 to 3 Ton 18 SEER Variable Speed MrCool Universal Central Heat Pump Split System - Upflow/Horizontal with Quick Connect Lineset - 15 Feet amzn.to/3WE8SfI Thats our affiliate link. Thx in advance for your support if you use it - it's free for you to use and if you do, Amazon may send us a small commission. it helps keep our channel going! We do appreciate your help!
Thanks. My unit has been crying for a little bit of time, whoo we, whoo, we, whoo we. It is really annoying and you are the only one I found that had the same problem. Thanks. I will try the fix. If it doesn't work I will be moving to Antarctica.
Hey Glen, Be sure and store up some patience - per your comment above , it was not designed to be easily repaired. At one point I questioned if it was even possible… in the end we discovered it is possible, just not simple. Thx for watching!
Great work guys. I would recommend that if you are doing this for the first time use your phone to take several photos or use the video mode so in case you have any issues you can always go back to the video.
Thanks so much for this. I followed religiously and it was difficult but finally did it. Absolutely need one main, one assistant. The final step of taking Moter out of casing is the most difficult one. I almost gave up. I determined to do it even it means break the casing and there plastic bended and didn’t break.
Thanks so much HouseBarons! I just completed the repair and it is working quietly again. Great detailed video. Parts note, the MrCool diy-18-wmah-hp-230a uses dc motor WZDK30-38G DC310V 30W 0.14A 1300R/MIN Some models require the 20W motor which I ordered by mistake based on Amazons compatibility description.
I have the DIY 24k that started this grinding noise after 3 months of use. I installed a Shinco 17 years ago and not one issue!! MrCool warranty is a joke! If you haven’t purchased a unit yet, I would look for a better company. These have faulty fan motors and this company will make you jump through hoops to get replacement parts replaced under warranty and the best part is it’s up to you to do the work.
Tip: The set screw on the blower wheel can be reached with a regular long Philips head directly through the vent at the bottom. Also you shouldn't use cordless drills on any of the screws as many are into plastic and can crack...hand tools are all that is necessary..... But thanks for the Holy Grail moment....sticking point for many....
Something i started doing several years ago ago is to take a picture of anything I'm about to take apart. Include wire connections and routing. No pencil needed! And, much more detail.
Thanks for the video helped me get through some parts of disassembly. Not sure what size unit your is. I have a 3rd gen 9k. I found that the easiest way to remove the set screw is by taking off the main fan blade and metal cage. You can then spin the blower wheel from the bottom and reach up with a long screwdriver to loosen the set screw. Mine is brand new and the blower wheel was making a lot of noise. In my experience the noise is a misaligned blower wheel. I shifted the wheel all the way to the right and the noise was gone. Hoping it won't be too much of a pain to remove the blower wheel and clean it in the future...
How old was this before it gave out? Mines 2years old and leaking water into the house. So now I have to disassemble the unit and see what the issue is. Thanks this video really helped!
Hey Shadow, We had the same issue….. it was icing up inside , then melting. Turns out the condensers cooling fins ( outside unit ) we dirty - clogged w/ dust and leaves etc. The condenser needed to be cleaned. The fins are very fragile/ bendable so cleaning had to be done slowly and w/ care. Once we did that, we were good to go. Hope that helps.
Water leaking inside is typically due to a plugged up or improperly installed drain. I've seen a flood of water running down the wall at my barbershop and it turned out that the drain on his unit had become plugged...he told me later they gently ran a very small flexible plastic snake down the pipe and cleared the build up to fix it.
no need to disconnect all the power cables from the electrical box. just undo the two yellow/green ground wires at the coil , cut the zip tie and swing the module to the right (leave it hanging by the wires. Also, remove the blower fist, off to the left, that way you can wash it. motor goes in easier and then just slide the sparkling blower from the left to the right and tighten the set screw on the motor shaft.
Very helpful video! Anyone know where I can find a replacement motor ZKFP-20-8-113 for my DIY-12-HP? I can’t find anything g on Mr Cool’s site for replacement parts
I am trying to change the blower motor on my 2017 LG and I found this really helpful. I was looking to see if there was a brand with a better design that was easy to maintain. I thought it may be Mr. Cool because they advertise DIY friendly. Judging by this repair they are the same crap design as all other brands - they only thing they do is charge a big premium for their product because the lines come pre-charged. Maybe one day Tesla will release a better design mini-split.
True. Tesla has a super compact heat pump on their newer vehicles - really genius as it get heat from the air rather that from typical resisters ( like a toaster ). It would be cool if that was yet another new product for home!
Mostly from the help of this video I was finally able to remove the blower motor. I even hired a guy off of craigslist who I explaned the whole situation before he came out and when he got there his only interest was in selling me a new unit. He didn't have any interest in trying to repair the inverter. Licked my wounds and moved on $225 later.
I have one from MrCool and it has several numbers listed on the motor: 29PK15; 201811150000029; SA0000358 and a listing of the other specs: DC Brushless motor WZDK58-38G SIC-55cvl-F159-1 and below that DC310V 8P 58W and below that 1350r/min E Class Hope this is what you need
You should have cleaned the squirrel cage blower blades as they collect dust and dirt and cause balance issues and when they get dirty you lose air flow. Always clean the squirrel cage blades The air flow is critical. So inspect the blades clean as needed. Also can you tell us how much the new motor cost was?
It took me a while to find the secret screw in the middle of the bottom. So I know I have the same unit. Machine designers should be required to fix machines they sell before they start to sell them.
Trying again, I got the motor out, and I also said "well, that's stupid". It definitely needed brute force and some damaged fingers to get the motor out. If you are looking for the motor, it is called a Step Motor, and it should be less than $50. If it costs $300 it is not that motor. Also, the hidden screw is impossible to find until you rip the housing apart, and then you can see the seriously hidden screw. I think they added this one to make sure you hired a professional hidden screw technician. I will not be replacing this hidden screw. If you got this far you already found the first hidden screw. But by this time, you might have just ripped the unit off the wall and bought an air conditioner for your window. But, we have won the fine fight. The Step Motor is not crying anymore. The unit puts out a lot more air. I think we are going to open a bottle of champagne.
Don't understand peoples love affair with power tools on these delicate plastic parts. The fan blade looks broke from that fat quick connect head. These mini split air handlers are a pain to work on. This looks similar to my Blueridge (Midea). I had to pull mine off the wall to remove the plasitc clip holding the copper lines running down the back. Then bend out the lines enough so the coils pull straight up. Putting back together was difficult due to the bent copper lines acting as a spring keeping the coils popped up a 1/4 inch.
This one was a 1st generation mini-split… from our experience, it was not designed with thought given to ease of repairs. Thx for commenting and watching!
If you are wondering about performance details and costs we've experienced with a Mr Cool Universal heat pump, then be sure to check out our Mr Cool HVAC playlist.
ua-cam.com/play/PLExVGissIl-GdKsUBhF3c0fQ6E_o6oOaZ.html
We have tried to answer as many questions as we could imagine in the 17+ videos in this playlist - hopefully they help you!
The price of the unit we bought is around $3800 ( as of June 2024) on Amazon :
2 to 3 Ton 18 SEER Variable Speed MrCool Universal Central Heat Pump Split System - Upflow/Horizontal with Quick Connect Lineset - 15 Feet
amzn.to/3WE8SfI
Thats our affiliate link. Thx in advance for your support if you use it - it's free for you to use and if you do, Amazon may send us a small commission. it helps keep our channel going! We do appreciate your help!
I can hardly wait to replace mine!
Thanks guys. I was having a hard time getting that housing out. You guys saved me.
Glad to help! Thx for watching!
Thanks. My unit has been crying for a little bit of time, whoo we, whoo, we, whoo we. It is really annoying and you are the only one I found that had the same problem. Thanks. I will try the fix. If it doesn't work I will be moving to Antarctica.
Hey Glen,
Be sure and store up some patience - per your comment above , it was not designed to be easily repaired. At one point I questioned if it was even possible… in the end we discovered it is possible, just not simple.
Thx for watching!
Thank you so much. I saved some good money on this job. Just like they said for those of you who want to try it it’s not easy but it’s very doable.
Hey begin…,
Nice - way to go! Thx for watching!
Great work guys. I would recommend that if you are doing this for the first time use your phone to take several photos or use the video mode so in case you have any issues you can always go back to the video.
Thanks for sharing. I found the blower motor at Amazon.
Hey pb,
Awesome - Thanks for sharing!
Can you post a link?
Thanks so much for this. I followed religiously and it was difficult but finally did it. Absolutely need one main, one assistant. The final step of taking Moter out of casing is the most difficult one. I almost gave up. I determined to do it even it means break the casing and there plastic bended and didn’t break.
Hey cheng..,
Yes. That was similar to our experience. It was designed to work on easily! Way to go and hang in there. Thx for watching.!
Thanks so much HouseBarons! I just completed the repair and it is working quietly again. Great detailed video.
Parts note, the MrCool diy-18-wmah-hp-230a uses dc motor WZDK30-38G DC310V 30W 0.14A 1300R/MIN
Some models require the 20W motor which I ordered by mistake based on Amazons compatibility description.
Hey Jr..,
Way to go and take on the task! Good job - thx for watching!
I like the bed ladder. Great job.
Hey Carl,
Thx for watching!
I have the DIY 24k that started this grinding noise after 3 months of use. I installed a Shinco 17 years ago and not one issue!! MrCool warranty is a joke! If you haven’t purchased a unit yet, I would look for a better company. These have faulty fan motors and this company will make you jump through hoops to get replacement parts replaced under warranty and the best part is it’s up to you to do the work.
Mine is 2 years old and now grinding. Any tips for getting a replacement motor under warranty?
Thanks for the video.
You are welcome!
Thank you so much! Not sure that I can tackle this one.
Hey Darrell,
Thx for watching!
Even for techs it is a pita. I might have to do mine because it is making an annoying ticking noise.
Tip: The set screw on the blower wheel can be reached with a regular long Philips head directly through the vent at the bottom. Also you shouldn't use cordless drills on any of the screws as many are into plastic and can crack...hand tools are all that is necessary..... But thanks for the Holy Grail moment....sticking point for many....
Hey Harmonic,
Thanks for tips and for watching!
Something i started doing several years ago ago is to take a picture of anything I'm about to take apart. Include wire connections and routing. No pencil needed! And, much more detail.
That's a great idea!
Thanks for the video helped me get through some parts of disassembly. Not sure what size unit your is. I have a 3rd gen 9k. I found that the easiest way to remove the set screw is by taking off the main fan blade and metal cage. You can then spin the blower wheel from the bottom and reach up with a long screwdriver to loosen the set screw. Mine is brand new and the blower wheel was making a lot of noise. In my experience the noise is a misaligned blower wheel. I shifted the wheel all the way to the right and the noise was gone. Hoping it won't be too much of a pain to remove the blower wheel and clean it in the future...
Hey Byron,
Ours was a 1st Gen... total bear to work on. Sounds like you had good success! Thx for watching!
How old was this before it gave out? Mines 2years old and leaking water into the house. So now I have to disassemble the unit and see what the issue is. Thanks this video really helped!
Hey Shadow,
We had the same issue….. it was icing up inside , then melting.
Turns out the condensers cooling fins ( outside unit ) we dirty - clogged w/ dust and leaves etc. The condenser needed to be cleaned. The fins are very fragile/ bendable so cleaning had to be done slowly and w/ care. Once we did that, we were good to go.
Hope that helps.
Water leaking inside is typically due to a plugged up or improperly installed drain. I've seen a flood of water running down the wall at my barbershop and it turned out that the drain on his unit had become plugged...he told me later they gently ran a very small flexible plastic snake down the pipe and cleared the build up to fix it.
no need to disconnect all the power cables from the electrical box. just undo the two yellow/green ground wires at the coil , cut the zip tie and swing the module to the right (leave it hanging by the wires. Also, remove the blower fist, off to the left, that way you can wash it. motor goes in easier and then just slide the sparkling blower from the left to the right and tighten the set screw on the motor shaft.
Hey Maurice..,
Thx for the tip!
Very helpful video! Anyone know where I can find a replacement motor ZKFP-20-8-113 for my DIY-12-HP? I can’t find anything g on Mr Cool’s site for replacement parts
We called MrCool. It’s worth a try.
Thx for watching!
I am trying to change the blower motor on my 2017 LG and I found this really helpful. I was looking to see if there was a brand with a better design that was easy to maintain. I thought it may be Mr. Cool because they advertise DIY friendly. Judging by this repair they are the same crap design as all other brands - they only thing they do is charge a big premium for their product because the lines come pre-charged. Maybe one day Tesla will release a better design mini-split.
True. Tesla has a super compact heat pump on their newer vehicles - really genius as it get heat from the air rather that from typical resisters ( like a toaster ). It would be cool if that was yet another new product for home!
Mostly from the help of this video I was finally able to remove the blower motor. I even hired a guy off of craigslist who I explaned the whole situation before he came out and when he got there his only interest was in selling me a new unit. He didn't have any interest in trying to repair the inverter. Licked my wounds and moved on $225 later.
Where did you buy the blower motor? I can’t figure out where to buy one.
Hey Paul,
We got ours from mr.cool in Kentucky.
Thx for watching!
Hi, what is the part number for the motor?
I have one from MrCool and it has several numbers listed on the motor: 29PK15; 201811150000029; SA0000358 and a listing of the other specs: DC Brushless motor WZDK58-38G SIC-55cvl-F159-1 and below that DC310V 8P 58W and below that 1350r/min E Class
Hope this is what you need
You should have cleaned the squirrel cage blower blades as they collect dust and dirt and cause balance issues and when they get dirty you lose air flow.
Always clean the squirrel cage blades
The air flow is critical.
So inspect the blades clean as needed.
Also can you tell us how much the new motor cost was?
The front panel is not completely shut...
It took me a while to find the secret screw in the middle of the bottom. So I know I have the same unit.
Machine designers should be required to fix machines they sell before they start to sell them.
Amen Glen ! So true!
Trying again, I got the motor out, and I also said "well, that's stupid". It definitely needed brute force and some damaged fingers to get the motor out. If you are looking for the motor, it is called a Step Motor, and it should be less than $50. If it costs $300 it is not that motor. Also, the hidden screw is impossible to find until you rip the housing apart, and then you can see the seriously hidden screw. I think they added this one to make sure you hired a professional hidden screw technician. I will not be replacing this hidden screw. If you got this far you already found the first hidden screw. But by this time, you might have just ripped the unit off the wall and bought an air conditioner for your window. But, we have won the fine fight. The Step Motor is not crying anymore. The unit puts out a lot more air. I think we are going to open a bottle of champagne.
Don't understand peoples love affair with power tools on these delicate plastic parts. The fan blade looks broke from that fat quick connect head. These mini split air handlers are a pain to work on. This looks similar to my Blueridge (Midea). I had to pull mine off the wall to remove the plasitc clip holding the copper lines running down the back. Then bend out the lines enough so the coils pull straight up. Putting back together was difficult due to the bent copper lines acting as a spring keeping the coils popped up a 1/4 inch.
This one was a 1st generation mini-split… from our experience, it was not designed with thought given to ease of repairs.
Thx for commenting and watching!
And never use a power screw driver,
Hey Martin,
Thx for the input and thx for watching!
@@Housebarons thank you I just took my cover of my M/C thank you for showing how to take off. Cleaning coils and fan blades!