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Turned on heater just blowing cold air went too turn off…

Customer Question
Turned on heater just...

Turned on heater just blowing cold air went too turn off wont turn off

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

Just last night

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

Today

Submitted: 9 months ago.Category: HVAC
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Answered in 5 minutes by:
9/17/2017
HVAC Technician: airheatman, HVAC Technician replied 9 months ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 9,075
Experience: Furnace, A/C and heat pump specialist.
Verified

Can you give me complete model from inside furnace in burner compartment so I can provide guidance with this specific unit.Model will be on a label just above burners on right or left inside panel

http://i.imgur.com/U8b0GXT.jpg

Then look in blower compartment and see if we have a control board with a blinking light.If so tell me the pattern of that flash.That will indicate what is wrong and tell us where to start troubleshooting.

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