View Full Version : HVAC blower motor replacement
Lason
03-06-2009, 04:45 PM
Well the wife called today and we had a scare. Seems the blower motor froze up and smoked like crazy and she called 911 in case it started a fire. They got there and there was no fire, just a burned up blower motor on the inside unit.
Would home depot sell these and are they hard to swap out? I have a friend coming over tomorrow that is a general contractor but I just wanted to get an idea of how hard it is to replace in case he cant make it. I imagine it would be a safe idea to swap out the capacitor as well. Im thining $150 in parts but I could be wrong Im sure.
kpc01
03-08-2009, 01:16 AM
I don't think HD sells them but could be wrong. I know A/C wholesalers sometimes sell to walk ins but jack up the price, If you have a local grainger (search their website) they will take care of you too but pricey imo. Just make sure you get the matching motor
Vertnut
03-08-2009, 07:24 AM
The last time I had one replaced (about 6 years ago) it was $200 including labor, which takes about 5 minutes.
Yea easy to do, couple sheet metal screws and a plug/wiring. Best bet is to take that mo-fo out and take it to an AC supply place and match it up.
I imagine it would be a safe idea to swap out the capacitor as well. Im thining $150 in parts but I could be wrong Im sure.
have your contractor buddy go there and show his card for a 50% discount on parts. Good luck on the wiring, they seldom match exactly. One wire wrong and it's burnt up.
Lason
03-10-2009, 09:54 AM
Yeah my buddy got me a replacement motor for free from a buddy of his but I dont think it is the correct one. It is the same hp, 1075rpm instead of 1050rpm. The biggie is it is a single speed and my old one was a two speed. He said in that case they usually wire up the black wire to both pins on the relay so the fan will kick on with the A/C and the heater. I did all that, it worked but the problem is it just doesnt move a lot of air. Cold air was barely coming out the vents.
It was also a sealed motor like for an outside unit versus the vented can like my old motor. So he is coming by the house today to pick up my old motor and go find a better replacement.
barronj
03-10-2009, 09:58 AM
Find a Johnstone Supply... they will have your part.
Easy to replace, if it's plug & go.
Lason
03-11-2009, 10:48 AM
My buddy came over and had it fixed in a matter of minutes and made me feel like an idiot. When I installed the new motor I made sure I had it set run clockwise like the old motor. The new motor had two external wires with a plug and to reverse the rotation you unplug it, flip the plug around and plug it back in. Anyway he came over, flipped the plug around and it was blowing hard as hell out the vents :owned:
I guess Ill stick to cars from now on :greddy2:
You should always check the capacitor when replacing a motor, newer motors seldom use the same value Microfared capacitor as older motors.
A 1050 and 1075 is the same motor speed. They have a different slip rating at full horsepower load.
The fan motor running on high with heat, you won't have quite as hot air blowing out and you may feel cooler with the greater air movement on your skin.
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