We just installed a 70,000 BTU goodman furnace and it worked fine then it gave the code of 4 flashes. We tested eveything and still locked out.
We just installed a 70,000 BTU goodman furnace and it worked fine then it gave the code of 4 flashes. We tested eveything and still locked out.
My book says 4 flashes = a open limit control. Look on the inside of the blower door for your wiring diagram and post exactly what 4 flashes mean for your furnace.
We checked the open limit control and it works fine.
If you just installed the furnace I would look for a problem with the install. Look over your work again and pay close attention to the exhaust size,length,and termination.
It was installed profesionaly and he checked evrything. Exhaust is 2 inch pvc and runs 15 feet.
Exact model number?
Gmh96/gch9
Here is your complete service manual. You can use this to track down your problem. I suggest you keep a copy of this on your computer for future reference. This manual is also for other units so make sure you are using the correct section for your model number.
http://securenet.goodmanmfg.com/pdf/...S6610004R4.PDF
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