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Question About Lennox International Inc. Furnace G40UH(X)
G40UH(X)...

burner continually does a short cycle on and off for about 3 minutes at a time until thermostat is satisfied. I cleaned flame sensor but this did not help!

Asked by Mike on 01/06/2009 1  Answer

ManualsOnline posted an answer 15 years, 10 months ago

The ManualsOnline team has found the manual for this product! We hope it helps solve your problem. Get the Manual Here

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