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Lennox Gas Furnace Wont Ignite

Posted by Tim on March 6th, 2002 04:17 PM

2 of 2 people found this post helpful

I have a relatively new lennox gas furnace (3yrs) mdl#: 80UHG with the pilotles electronic ignition. Last night it failed to start-up when the thermostat called for heat. All worked fine till it was time for ignition - no spark observed at the ignitor. It has a circuit board for the ignition with flashing green LED's. They were flashing simultaneous until the furnace failed to start (after four tries). Then the LEDS went to alternating flashes, apparently indicating "burners failed to light". All connections were checked, igniter was checked, "cold-boot" did not work. ANY CLUES??? It appears the warranty went out on this 1.5 months ago...

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