Blower runs continuously

Questions about repairs and parts for Nordyne furnaces, air conditioners and heat pumps for manufactured homes including Intertherm, Mac and Miller brands. Click here for Nordyne parts.

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early4nada

I have an Intertherm/Nordyne G5RA096C-16. Duing the night, we had a lightning strike that caused us to lose power. When the power company got the power back on, the furnace blower runs continuously regardless of the the thermostat setting (on/off/fan, etc...).

I checked the 120VAC, the 24VAC and ICM fuse and all looks good. The status led on the ICM (p/n 624557-0) is off, as in no power, even though there is power to the board.

Is it new control board time or is there something else I should check?

Thanks in advance for your help.
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Robert
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Posts: 6413
Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Hi,


Turn t-stat to OFF and if blower keeps running, check to see if it is getting 24V to the board and 120V from control board .

IF there is not 24V to board from t-stat, but there is 120V from board going to motor, the board id faulty.


This may or may not be the whole problem either way, but is most likely.

I can give a price quote for the board if needed.


Thanks,
Robert
Some people are Humbly Grateful, while some are Grumbly Hateful.................... Which one are you ?
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