Goodman Furnace Control Board Troubleshooting

The circuit control board of your Goodman furnace is found at the system’s center. It has various functions, with starting the motor and closing the pressure switch when necessary as some of many to name. When the system makes sure that all the actions safely occur, the circuit board will let the pilot light ignite. Sometimes you will be able to troubleshoot your Goodman furnace control board on your own, but only if the issue is relatively simple.

What steps to take for Goodman furnace control board troubleshooting?

Being meticulous when addressing your Goodman furnace’s problems can help you solve the problem on your own or at least identify the problem. Having an idea about what’s wrong with your Goodman furnace will spare the professionals some efforts and speed up the job when they come to fix your furnace.

Here are the steps to take in case you suspect troubleshooting on your Goodman furnace control board:

Step 1

Identify the led display panel on your unit, as it contains essential information. Once you find it, you should make sure that the green light is on, as it shows that the board is running, and the furnace is powered.

A blown a fuse in the primary fuse box makes the green light not to be on, but the furnace could still have power; you need to check that as well. A blown fuse is in the off or neutral position inside the box, so you will need to put it back in place.

Step 2

You will need to check the error codes on the led display if it’s flashing. Goodman furnaces are made to lock out the ignition process when the circuit control board develops an error while starting. If that happens, the led display will inform you with a flash code.

Step 3

It would help if you counted how many flashes are on display. When your unit identifies more than one problem, it will flash a code, then make a pause and continue with a second code. Unless you reset the display, the flashing won’t stop. It’s also recommended to go over the owner’s manual as it tells you what a flashing code error typically warns.

Step 4

You will need to turn off the furnace’s power supply when the circuit control board isn’t running correctly. The circuit board may not operate correctly because the circuit board has no power, even if there’s nothing wrong with the power supply and the fuses are okay. The circuit board is located inside the furnace’s blower compartment.

Step 5

Look carefully at the circuit board to see if there is any blown fuse. You need to check the top of the fuse to make sure it’s blown or not. When you identify any disconnected wires, you will have to remove the fuse and install a new one instead.

You have to make sure that no cables get in contact with the circuit board frame when you deal with a blown fuse. Keep in mind that you will have to eliminate the loose or damaged wires, installing new ones. It’s how you will reduce the risk of a new fuse to blow once again.

Replacing the damaged wires can be too much for some, so you will have to call the professionals. But you help them a lot if you tell them straightforward about the problem with your furnace.