Lennox G50UH(X) gas furnace won't light...

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Old 02-22-05, 06:07 PM
C
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Unhappy Lennox G50UH(X) gas furnace won't light...

I hear one click,the blower comes on but no fire. The flashing LED lights just indicate normal operation. The tube on the pressure switch is clear. I am wondering about the ignitor or the flame sensor. If the ignitor is cracked,could I feel it with my fingers. Can't see it very well,just the tip of it. Getting cold! Thanks for any help you can give us.
 
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Old 02-23-05, 09:44 AM
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How old is it? G50 is a pretty new model, if under a year, call the dealer since it's under warranty.

I am not sure what Lennox uses now days.. I am sure someone else here will know.

I am sure it's HSI.. if it glows red/orage, then then it's the sensor.. If there is no glow, then the ignitor maybe bad or the control.
 
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