This diagnostic light indicates the Proof of Fire switch no longer senses a flame in the firebox area of the furnace. What caused the furnace to go out?
a. The door of the unit was left open longer than 90 seconds. b. The ash pan door was left open longer than 90 seconds. c. The Proof of Fire switch is defective. Solution: If the fire is out, re-light the furnace. Make sure all doors are securely latched and hold down the On/Off button (approximately 5 seconds) until furnace starts up again. This will re-start the furnace in the start-up program. Occasionally use the auger button to manually feed fuel until the auto- feed takes over (auto feed will start 7-8 minutes after the furnace has been restarted). back to top 4. My furnace isn t burning and the number 1 LED light is blinking. This diagnostic light indicates that the Vacuum switch no longer senses a vacuum in the furnace. Solution: Check inner door gasket and ash pan gasket to insure good seal. Check to see if combustion blower is still operable. back to top 5. My furnace isn t burning and the #5 is blinking. This means the power was interrupted at some point and the unit shutdow
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