Here s how to diagnose a low voltage short.
Goodman furnace control board fuse.
The control monitors and sequences operation and offers 100 percent gas shutoff in case of ignition failure.
I tested on the control board r to c and got 24v with the button pushed in for ac power.
Thanks for the help.
The guy has a new condensing unit installed last year.
Should i check amp draw on compressor and both fan motors.
He just called and told me fuse is blown again.
Its just being used for cooling right now.
Amana goodman hvac control board fuse answered by a verified hvac technician we use cookies to give you the best possible experience on our website.
Can you guys point me in right direction to figure this one out.
I turned off the input power and attached terminal r 24 vac power to thermostat and the fuse blew.
I did a recent service call and the 5 amp fuse in the circuit board on the furnace was blown.
The model number of the goodman furnace is gks9.
Furnace control board designed for goodman and janitrol brand 80 percent and 90 percent afue furnaces with b18099 xx series control boards.
Pull that fuse out and hold it up to the light.
If the fuse blows when you have no low voltage wires hooked to the furnace then you have an internal problem like a bad limit gas valve connection or control board.
When you have the door off of the furnace and can see the control board take a look right next to where the c g r w y and twin terminal are and you should see a small car type plug in fuse.
Costs around 142 00 if you don t have an a c license.
By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.
I was blowing the 5 amp fuse on the control board for my forced air gas furnace.
Also replaces select control board models from ti utec and white rodgers.
Im going to show you how to fix this problem with just a screwdriver and maybe 5 3 amp fuses and we will fix the 3 amp short im just making this video for my.
It isn t the hsi inducer or blower motor as these are all high voltage parts not low voltage.
The control boards on goodman furnaces go out all the time and that is where the problem lies.
If the fuse keeps popping in your air conditioner you have a 24 volt short.
My guess is that you wasted a lot of time and money replacing the blower motor and transformer.
My furnace is a concord model cg90ub.
