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Category: HVAC
Satisfied Customers: 14869
Experience:  15yrs in the HVAC industry with certificates and degrees.
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I have a model DGAT095AbA propane furnace that worked fine

Customer Question

I have a model DGAT095AbA propane furnace that worked fine last week. Now, the ignighter comes on, but flame never starts. 7900/D series Hot Surface igniter.
JA: Did you check the furnace's filters?
Customer: Filters are good!
JA: Do you plan on doing the work yourself?
Customer: If I can figure out what's wrong.
JA: Anything else we should know to help you best?
Customer: Do not know!
Submitted: 1 year ago.
Category: HVAC
Expert:  HVAC Guru replied 1 year ago.

Hello, one minute while I get some information together.

Expert:  HVAC Guru replied 1 year ago.

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If the ignitor comes on but no flame either the board is bad not sending power to the gas valve or the gas valve is bad or lastly you have an open limit on the unit. I would check for 24 volts to the gas valve and see if it is getting power when the ignitor is glowing if not check all the thermal limits on the unit to make sure they are electrically closed. If they are I would replace the board.

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