I have a Tempstar model# PGF048K080A tried to turn on the heater and no heat. So I inspected the unit & found the pressure switch was burned out. Replaced the pressure switch & still no heat. Now I believe the draft inducer motor is also burned out. I put my ohms meter on the inducer motor and get a reading of "OL". If I'm not mistaken that means the motor is burned out. Right? Is there a way to check the gas valve without the draft inducer motor operating? I am getting ready to order the inducer motor, but I want to make sure the gas valve is not faulty also.