Some of the things that might be happening are.
Goodman furnace control board problems.
Hvac systems are designed for safety so they usually won t turn on at all if there s a faulty part such as a pressure switch or flame sensor.
The pressure switch is open a short in the pressure switch circuit blockages in the flue or many other reasons.
On the back of the control board where those connecti.
If the control board is at fault replace it.
Do not try this as a method of testing the.
In goodman furnaces the relay switches for the fan there are two of them are integrated into the circuit board.
Why does the blower keep running.
I have made this to demostrate the dangers of not taking proper precautions of safety around eletrical appliances.
Is your goodman furnace not working.
Control board the control board has relays that regulate the voltage to each component in the furnace.
Finally solved my furnace problem.