Question about Goodman GDS80904BNA Open Flame Heater
Here is the situation:
Thermostat calls for heat
Draft blower engages and runs
Board clicks and igniter gets glows after a few seconds
Board clicks. Gas valve does not open, Igniter stops glowing, Draft blower stops running, LED on control board goes out. No flush.
I reset the Control board by cutting power to furnace.
LED on control board goes solid red and the same thing repeats again.
I checked continuity from board to gas valve and is ok.
I engaged the gas valve with 24V and gas valve opens and puts out gas
I checked the voltage on gas valve and there is no voltage at any time during the start up.
The control board works fine on cool mode (AC runs fine)
SOURCE: no hot surface igniter
This is why swapping parts is never a good idea. It could be a board, pressure switch, or several other issues. I'm a service technician and realize that many furnace issues are difficult to diagnose over the phone, or internet.
Calling a qualified, NATE certified technician to diagnose and repair this properly is probably the best solution that I could suggest. Yes, there will be a bill and it will be expensive, but it will be a lot less so than changing out parts you might not need.
Posted on Jan 03, 2009
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Posted on Jan 02, 2017
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