Tempstar air handler


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Old 11-09-20, 05:17 PM
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Tempstar air handler

I have a model FEM4P3600AT. With the system off and the blower/ fan set on auto, the fan quit shutting off.
It appears to be the fan motor. I have been told it is a smart motor that has a circuit board on it and something is wrong with that. The motor runs beautiful.
Can I keep the motor and add a relay for the fan control 24v?
 
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Old 11-09-20, 05:56 PM
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You need to check the 24v speed taps to see if one is staying active.
That would keep the motor running.

Tempstar FEM4P tech manual (pdf)
 
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Old 11-09-20, 07:38 PM
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That's what it is. I was told it is in the board on the motor and I need a new motor. I was quoted a new "smart" motor for $755.00 or a new board for $580.00 or a generic motor, without the board and a relay for $542.00. I was wondering if they can put a generic motor, and a relay, why they couldn't use the old good motor and a relay.
 
 

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