Lighting Pilot Fails Occasionaly - HVAC - DIY Chatroom Home Improvement Forum

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Old 10-27-2009, 10:20 PM   #1
Join Date: Oct 2009
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Lighting Pilot fails occasionaly

This fall, I began to experience the following with my Lenox Elete series gas furnace. Most times when the heat cuts on the pilot lights and the furnace operates fine. Occasionally, the pilot will not light:
- Fan comes on to clear exaust (normal)
- after the exhaust fan runs several seconds the ignitor sparks for a short period (not normal, when lighting properly sparking continues 2 or 3 times as long until pilot lights.)
- this short sparking cycle will repeat 3-4 times then stop. The exaust fan will continue to run and run, but no pilot and no heat.
- two weeks ago the unit had it's pre-season servicing. I mentioned to the tech that I has observed a few times the pilot would not light (but had not determined the details above.) He checked out the pilot and ensured the gas ports were clean. He thought it was just air in the line from inactivity.
What needs to be done to fix this?


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Old 10-28-2009, 11:23 AM   #2
Join Date: Dec 2008
Location: West Michigan
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Lighting Pilot fails occasionaly

Replace the blue Johnson module, should fix the problem.


SKIP4661 is offline   Reply With Quote

pilot light

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