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Check and see what the LED diagnostic code flash says. Just count flashes and let me know. Russ
Sorry about wait. Tremendous storms going thru Mississippi an Alabama. Lost all power and internet. No charge unless satisfied. That is an older heater the LED would be on furnace board if it had one. My site comes up obsolete on manual. Russ
Let me know if you still need help and if you have a volt meter for step by step troubleshooting.If not we can request a refund of your deposit as long as you do not rate answer.