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When I turn on furnace it blows warm air. next time it cycle…

Customer Question
When I turn on...

When I turn on furnace it blows warm air. next time it cycle it blows cold air

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Yes

Contractor's Assistant: Do you plan on doing the work yourself?

Maybe. I have had repair men look at it and they don't understand either

Contractor's Assistant: Anything else we should know to help you best?

I am wondering if it could be my thermostat

Submitted: 9 months ago.Category: HVAC
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Answered in 5 minutes by:
12/3/2017
HVAC Technician: gotoman for ac, HVAC Technician replied 9 months ago
gotoman for ac
gotoman for ac, HVAC Technician
Category: HVAC
Satisfied Customers: 5,362
Experience: 51 years of experience install design and repair of all makes and models of AC
Verified

Russ here . Is this a gas furnace.

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HVAC Technician: gotoman for ac, HVAC Technician replied 9 months ago

If this is a gas furnace have you checked the LED error code lights. Russ

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