New blower motor is really hot,why???
#1
10-06-18, 04:12 AM
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New blower motor is really hot,why???
I purchased a new blower motor because my old one seized up now replacing it it it starts to get really hot. What should I do???
#4
10-08-18, 02:55 AM
If the blower motor runs continuously or runs for an extended period of time, I would expect the surface temperature of the motor to be about 175 degrees F or higher. Too hot to touch. So a motor that is very hot to touch is actually running OK.
#5
10-08-18, 06:30 AM
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The capacitor is new and tested ok. When it gets hot there is a small as well as the motor being hot. I can't seem to think that it supposed to be that hot when it's running... I'm afraid that I will burn out this motor as well if I just keep it going. Others have said that their motors were just warm...
#6
10-08-18, 10:28 AM
Group Moderator
I'm guessing it's a multispeed blower. Try running it on common and cool or common and heat. Sometimes two windings get energized at the same time and cause that problem.
#7
10-09-18, 05:04 AM
Super Moderator
Is the capacitor the correct rating for the new motor?
Is the current rating of the new motor the same or higher than the old one?
Is the voltage rating/setting of your new motor correct for your furnace?
The way to properly test your motor is to measure the amperage with it running and the blower door closed then compare the reading with the nameplate rating.
You could likely find an inexpensive off-shore clamp-on amp meter that would be good enough for a basic test.
Is the current rating of the new motor the same or higher than the old one?
Is the voltage rating/setting of your new motor correct for your furnace?
The way to properly test your motor is to measure the amperage with it running and the blower door closed then compare the reading with the nameplate rating.
You could likely find an inexpensive off-shore clamp-on amp meter that would be good enough for a basic test.
#8
10-15-18, 04:56 AM
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I went to Grainger to get the new blower motor. So I thought I would do some checking online and I purchased a different blower motor. When it arrived i opened it and installed it. Right away it seemed to be the right motor. Turns out Grainger sold me the wrong Motor twice!!! This was the issue! All this time I trusted the word of Grainger and they assured me that sometimes they just look different. Well not this sometime. Uhg! Running great, perfect even now!!!!
#9
10-15-18, 11:55 PM
Group Moderator
Good job.
Grainger is fairly reliable when it comes to motor replacement but sometimes the info gets mixed up.
Grainger is fairly reliable when it comes to motor replacement but sometimes the info gets mixed up.
