Came out to investigate a no heat. The furnace tried to kick in but immediately went out on a pressure code, venter motor wouldn’t even start. I cleared all drains and hoses. Checked venting and had no obstruction. Ohmed the motor and it was fine. Checked voltage from the board to the motor and found that there was no power coming from the board. The main furnace board is bad and needs to be replaced. We will call on Monday to quote.