Furnace Blower Motor Diagnosis And Repair




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Did this video help you?

kosh2001: my furnace is 20 yrs old how hard will it be finding a replacement motor?

Jesse Thorn: Awesome video. Really appreciate it. I just happen to have the exact same model furnace and I discovered that my motor wasn't turning, causing the heat to build up in the heat exchanger until it tripped the limit switch. Now I can probably verify if my suspicions were true. 

teesalmon: Blaise, Thx for your comments. You are correct that the capacitor is between the start and the run. So what I have labeled as "Start" is incorrect. The start is the 6.2 Ohm leg at the bottom. And yes if I measured from the capacitor lead going through the 6.2 ohm start winding to the black I should get 6.2+2.9=9.1 ohms. I am still confused and can not explain why I measured 73 ohms from the common to the other capacitor lead. You Tube marked some of you comments as SPAM, but I left the one PSC diagram with some text you provided. Thx for pointing this out. I did say in the video that I don't do this for a living (i.e. there are definitely people that know the content much better than I do).

boilermech: a faulty capacitor is usually the problem. and 90% of diyers wind up replacing both motor and cap. now all that money wasted and time. it pays to hire a pro. annual maintenance should be checking capacitors. if not find a new company.

george gonzalez: Those are not resistors inside the motor, they are windings.

brianminkc: you can't measure impedance with an ohm meter. Just resistance.

Patrick Riley: Did you mention what type of furnace this was and what the part number of the motor was? I would appreciate knowing this info. Thank-you.....

MissOseni: my furnace starts but is not blowing air. what are the chances this is what i need to do?

harvey burrows: great video , lots of useful info.

Cesar Fernandez: excellent job...simply the best!!!

Eugene Korsunsky: Thank you for the demonstration, your video was extremely educational considering you are not a pro. I hope this will help me out to troubleshoot and fix my system. Thank you again, five thumbs up :D.

denclub1: Hi, thanks for your video. So if I can start motor with my hands this is mean I need new capacitor, right? I have 2 furnaces in my house and use only one for years. When cold storm hit us yesterday turn on my second and noticed no air blowing. Heater start working and shutdown after 30-60sec and blower never work even when ON position. I try to turn on blower with my hands and everything works but only until its off. Then same thing I need to turn blower with my hands. Bad capacitor?

Sridhar Sathya: Thanks; found it useful.

Linden Wong: I thought my smoke detector was going off inside my house but it was yours. Ha Ha

johnny30806: Was the run capacitor on the original motor good or bad?

Angel Advntg: Thank you SO MUCH for your video. My Brother owns a large HVAC Company, and refuses to help me. With your & other videos, you've helped me save my furnace!

selva raja: knowalgble information, 

Deno Keller: Excellent Video !!! Thank You and GOD Bless

teesalmon: I love the comment about the smoke detector beep! You r so right, I tuned it out. I could not quit laughing. You have inspired me to replace the battery!!!

AlchemistLair: Excellent video!! I'm trying to track down why my Blower Motor is not starting and your video spells it out the best!!!! I'm with you on changing out that capacitor; might as well do it while your in there!

stanbod: Super!!! Thanks!

stephen kroswek: OMG change the battery in your smoke detector, I couldn't watch past the third .....beep....beep....beep
Rating:
Furnace Blower Motor Diagnosis and Repair 4.4 out of 5

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Furnace Blower Motor Diagnosis and Repair