blower fan LOW SPEED ONLY.

jdjerry

Member
My 8760 blower fan will fun on low speed only. The ac and fan worked fine yesterday. I blew the filter out and checked the fuses. Any
idea what to check next.
 
There's 2 fans and motors, a pressurizer fan and the main fan. Is it possible the main has quit altogether and you are hearing/feeling the pressurizer fan?

That being said, I have seen the motors fail, and the switch and attached connector overheat and fail, and, of course, there's a fuse or breaker (it's been awhile).

Also, if the main fan IS running and only on low it could be the fan resistor.
 

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