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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Trane xe78 model tud140C960A0 gas furnace fires up with blinking

Customer Question

trane xe78 model tud140C960A0 gas furnace fires up with blinking light blinking fast, burns for about 2 minutes, then shuts down without blower fan coming on and red light blinks four times pauses and repeats blinking four times. could this be a relay problem
Submitted: 6 months ago.
Category: HVAC
Expert:  Airheatman replied 6 months ago.
If main fan does not come on, unit will shut down on high limit.Do you have a meter to see if we are getting voltage to the blower after burners light?

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