Question about Goodman GDS80904BNA Open Flame Heater
I have a goodman furnace and it's working, but not blowing hot air. The red light on the control panel is blinking 3 times, indicating that my pressure switch is open. Can anyone tell me how to find the pressure switch please?
Its not on the gas valve it's the device with the hose connected to it on the front above the gas valve and behind the draft blower. the hose goes from the pressure switch to the draft blower. usually not the pressure switch though. the circuit boards are notorious for burning up and giving a false diagnostic code. if it is the pressure switch remove the hose and try to blow it out and then connect it to the switch again leaving the other end off the blower. Blow gently into the hose and listen to the switch to see if it clicks. try sucking and removing any obstruction. if it does not click back and forth then it is bad.
Posted on Dec 12, 2009
It's mounted onto the gas valve. It will be a button or lever that you have to push in or down, depending on the style.
Posted on Nov 20, 2009
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Posted on Jan 02, 2017
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