Trane Blower Motor will not shut off

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Trane Blower Motor will not shut off

Postby tbrinegar » Tue May 31, 2011 12:03 pm

I have a Trane Heat Pump set up the Air handler Model number is 2TWR3042A100AA 3.5 ton. It has a variable speed motor ECM 2.3. About a month ago I noticed that the Blower will continue to run on a low speed all the time. I have a Pretty much identical unit for upstairs. In the process of trying to isolate the problem I have swapped parts to try to replicate the problem on the upstairs unit. I have swapped the Module, Electronic fan control, the ECM 2.3 that is on the end of the motor and I have swapped the indoor thermostat. I have not been able to get the problem to move in order to isolate. Is there anything else I can try. Thanks
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- Trane Blower Motor will not shut off

Postby nomadpeo » Sat Jun 11, 2011 5:09 pm

good shot duke. are the thermostats the same ? did you swap them ?
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