Have HVAC Questions? Ask an HVAC Expert for Answers
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.
It sounds like you may have an open limit circuit. Do you have a flashing light on the control board? What is the model number of your unit? Model number is ***** the rating tag inside the burner compartment.
Is the fan witch on AUTO? Give me a few to look up specs for your unit
I'm talking about the FAN switch on the thermostat
Does your thermostat have a FAN switch? if so it should be on AUTO
Do you have a multi-meter or a continuity tester?
Ok, first you can try resetting the rollout switch(es) (see attached pic for typical). They are located just outside the burner chamber. Turn off the power then press the small button between the 2 leads to reset it. If it clicks you have reset it and the unit will fire up when you turn the power back on with any luck. If it doesn't click it wasn't tripped.
Check to be sure there isn't more than one by tracing the leads connected to the switch.
Then trace the leads on the rollout to the limit on the front of the unit. It will have 2 wires attached. Turn the power off then jump the leads to the limit then turn the power back on.
Is the main lower still running? do you have power to the draft fan?