Goodman 4 flashes on control board
I have a 10 year old Goodman GMP Heating unit.
ICM Control board m/n: B18099-06
AC works fine.
This is what happens with the heater:
Inducer motor comes on
light gets lit and all burners come on
I hear relays clicking on the ICM control board, but the heater blower never will come on. Few minutes later it kicks off because it gets to hot then flashes the 4 blinking lights indicating open limit because of the temp. without blower.
Please help with your suggestions. Is it the control board?