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.
Goodman furnace control board fuse.
The control monitors and sequences operation and offers 100 percent gas shutoff in case of ignition failure.
Here s how to diagnose a low voltage short.
He just called and told me fuse is blown again.
My guess is that you wasted a lot of time and money replacing the blower motor and transformer.
I removed all the wires going to my thermostat and it would not blow the fuse when powered on.
Also replaces select control board models from ti utec and white rodgers.
The guy has a new condensing unit installed last year.
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.
Thanks for the help.
If the fuse keeps popping in your air conditioner you have a 24 volt short.
See if the filament is broken or the fuse has blown.
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.
It isn t the hsi inducer or blower motor as these are all high voltage parts not low voltage.
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.
My furnace is a concord model cg90ub.
Should i check amp draw on compressor and both fan motors.
The control boards on goodman furnaces go out all the time and that is where the problem lies.
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.
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I then tested the r to w with the thermostat in the off position and the button pushed in for a c power and got 48v.
Its just being used for cooling right now.
I tested on the control board r to c and got 24v with the button pushed in for ac power.
I was blowing the 5 amp fuse on the control board for my forced air gas furnace.
