Working on a Goodman Model # GMV90905 DXA. Powered up unit, called for heat and board immediately gave a 3 flash code. ( Low fire p.s. stuck open ) inducer never started switch should be open ?? Took off all stat wires and jumped w1 & r powered up again and got different code. 4 ( open H.L.) again inducer never started. All 5 limits are closed. No power out of board to inducer. Ordered new board and installed. Now I get nothing. No fault code. Have 24 v at r & w
Inducer motor and ignitor check out o.k.
Am I missing something or did I get a new bum board.