I've a goodman 090-3 furnace. The ignitor light up and gets hot, but that is all it does.
Then I hear a click sometimes and it shuts off. I have cleaned out the venter,cleaned out the hose to the vent, and have changed the heat sensor,and the ceremic heater. The thermostat will start, and the system will kick on, the ceremic heats up and then the whole system shuts off;after a few seconds it will fire up again and do the same thing.
I see the red light... but it does not blink... no codes what is wrong with this system?