Carrier A/C blower motor noise issue?
#1
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Carrier A/C blower motor noise issue?
Gas Furance WeatherMaker 8000 Two-Speed
A/C WeatherMaker-38TXA
Replaced Blow Motor April 2013 with OEM GE motor.
Problem is the blower motor area Im getting a rattle noise? Only does it with a/c is on? If I use the heat its fine. If I take out the filter 3m 16x25x1 filtrete 1900 the noise goes away? I checked the Squirrel cage fins they seem fine. Went over every bolt to see any loose ones no? Any Ideas? Need Help!
Thank you
Ken
https://www.youtube.com/watch?v=eBPh6VZY4UQ
A/C WeatherMaker-38TXA
Replaced Blow Motor April 2013 with OEM GE motor.
Problem is the blower motor area Im getting a rattle noise? Only does it with a/c is on? If I use the heat its fine. If I take out the filter 3m 16x25x1 filtrete 1900 the noise goes away? I checked the Squirrel cage fins they seem fine. Went over every bolt to see any loose ones no? Any Ideas? Need Help!
Thank you
Ken
https://www.youtube.com/watch?v=eBPh6VZY4UQ
#2
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Did this start recently? When you switch to cooling the motor runs a a higher speed. Maybe your filter is to restrictive.
#3
Welcome to the forums.
That's not a rattle. That is the distinct sound of a rubbing/worn/dry bearing.
If it's a belt driven blower then it can be the motor again or the blower bearings.
Can't tell for sure what your furnace uses without a full model number.
That's not a rattle. That is the distinct sound of a rubbing/worn/dry bearing.
If it's a belt driven blower then it can be the motor again or the blower bearings.
Can't tell for sure what your furnace uses without a full model number.
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Its started last Aug. 2015, but the noise started very faint then louder.....I changed to the red 3m filter. The blower door seems to be the problem. On the bottom of the unit where the door meets I see some padded tape(see pic). I know Im chasing a Gremlein!! I just want to rule out blower motor, sq cage... Yes its the higher speed which is when a/c is on. Its cavating. Thats the best I can explain....Would the filter cause this restrictive air flow etc...
My thoughts are:
1. Filter is causing air restrictive then cavating
2. The padded foam is worn out

My thoughts are:
1. Filter is causing air restrictive then cavating
2. The padded foam is worn out


#6
That foam tape is for the air seal.
In the video I don't hear any rattle. I hear a continuous even grinding sound.
In the video I don't hear any rattle. I hear a continuous even grinding sound.
#11
If the "fin" came unattached from the center support, try mixing up some epoxy and try to "glue" it back to the center support. This should help prevent the fin from flexing and making the clicking noise. Alternatively, if there is a crack in the fin (can't tell from picture), coat the area with some epoxy to repair the crack.