HVAC Questions? Ask an HVAC Expert for Answers ASAP
My Bryant Plus 90 gas furnace will not fire up. The blower motor is running but the fire box is not igniting. I remember from last year, a tech cleared the condensation drain and made adjustments to the flame. I'm starting the heater for the first time and the fire box will not ignite.
Hello, it will be my pleasure to assist you. First thing to do is go to the furnace and look in the small peep hole in the lower blower door and see if there is an LED light that is flashing a certain number of blinks. Record that number and look for a diagnostic chart on the inside of the blower door or the upper side panel of the furnace. If there is no flash code present, you can try resetting the power to the furnace and see if it will fire up.
Customer: Okay, if you can give me a few minutes, I will check. If there is no flashing code, what is the best way to reset the furnace? I already tripped the circuit breaker and reset. There were no changes.
Heath: Okay, let me know if you get the flash code from the LED.
Customer: The flash code was 33 according to the chart on the door. Three quick flashes followed by three slow flashes says it was a flame rollout fault.
Heath: Okay, the flame rollout is near the burner section of the furnace usually there is more than one locate the rollout and in the center there is a red reset button that you will have to press in order to reset the rollout switch. Press this red button firmly and the switch will reset.