The unit comes on but after about 1 minutes it will kill power to the gas valve. Then it will start all over again the ignitor comes on, flame comes on the inducer and blower motor come on for about 1 minute and then gas valve closes flame goes out but the blower and inducer stay on then it will repeat itself over and over. Can the limit switch be faulty I checked it and it was closed.:confused:

the unit comes on but after about 1 minutes it will kill power to the gas valve. then it will start all over again the ignitor comes on, flame comes on the inducer and blower motor come on for about 1 minute and then gas valve closes flame goes out but the blower and inducer stay on then it will repeat itself over and over. can the limit switch be faulty i checked it and it was closed.:confused:


Does this unit have a flame sensor?

Is it grounded properly?
Does it have a fault light ?