Have HVAC Questions? Ask an HVAC Expert for Answers
Can you give me complete model from inside furnace in burner compartment so I can provide guidance with this specific unit.Model will be on a label just above burners on right or left inside panel
Then look in blower compartment and see if we have a control board with a blinking light.If so tell me the pattern of that flash.That will indicate what is wrong and tell us where to start troubleshooting.
Slow flash is normal. Power on but no call for heat.
1. Is thermostat calling for heat?
2.If so did you check batteries if battery powered?
3.Can you do some hands on troubleshooting?
Here is diagnostic chart