American Standard Freedom 80
When I first turned the furnace on this fall, no heat only cold air. Fan motor runs and the vent motor starts up and then stops right away. Glow plug does not come on. LED flashes 9 times, board says chek igniter, but I took igniter to neighbors house, plugged it in his furnace and it works.
Filters are clean, gas is on, vent fan motor stops right after starting. The unit is 8 years old.
Is my ciruit board bad?? I have power to the circuit board for the vent fan and the igniter.
If anyone can help with answers, I would appreciate it.