HELP. Lennox Gas Furnace is not working


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Old 09-16-12, 03:05 PM
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HELP. Lennox Gas Furnace is not working

I've had it for 5 years now and it stopped working all of a sudden. I'm not sure what the problem is. Can someone give me advice on how to fix it? Thanks.
 
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Old 09-16-12, 05:03 PM
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Take the cover off the burner compartment of the furnace. Obtain the model of the furnace off the rating plate in the burner compartment and post it here.

Observe the sequence of events that occurs at the furnace when you turn up the thermostat and post that sequence of events in order and in detail.
 
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Old 09-16-12, 05:51 PM
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Lennox Elite
M/N G50UH-366-110-15
S/N 5907B15211
Blower turns on
Both red and green LED's flash for 5s and then red LED disappears, green LED stays flashing. No flame at all, in fact I don't see the pilot.
 
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Old 09-16-12, 06:11 PM
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You dont have a pilot, you have hot surface ignition. On the blower door should be a legend of what the diagnostic lights mean.
 
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Old 09-16-12, 10:04 PM
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The manual on the furnace can be found at:

http://www.lennox.com/pdfs/installat..._G50UH_IOM.pdf




I'd make a copy of it and keep it with the furnace.
 
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Old 09-22-12, 08:13 AM
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I am a homeowner so take my advise with caution. See if your Chimney is blocked possibly by debris collecting in the base. Check that air is entering your furnace and is not blocked by a dirty filter, closed vents, or anything else blocking air intake.
 
 

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