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I have a package hvac made by Armstrong. The circulating fan

 
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  • Answered by:Billy
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Customer Question

I have a package hvac made by Armstrong. The circulating fan is running all the time even after the compressor has been off for more than 90 seconds. The fan continues to run when I place the thermostat switch is off position. It has a heatcraft model FTC8-EC03 control unit that appears to have been hot because some of the wires have melted insulation. How can I check this unit to make sure it is the problem before I replace it?

 



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I have tried to cut unit off at thermostat but that does not stop the fan. The fan stops when I open breaker but starts again when I close breaker.

Submitted: 994 days and 22 hours ago.
Category: HVAC
Value: $9
Status: CLOSED

Accepted Answer

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Expert:  Billy replied 994 days and 21 hours ago.

 

remove the G thermostat wire at the unit. If fan continues the fan relay is bad

Expert TypeHVAC Technician
Category: HVAC
Pos. Feedback: 98.8 %
Accepts: 9072
Answered: 7/29/2010

Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

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