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Old 11-29-2010, 12:10 PM   #1
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PCU44CLD20N Luxaire


I have a Luxaire furnace, that flames out after all burners are on. My safety switch maybe defective. I can push it in and I get a call for heat. All burners fire but the flames out. I can not get the fan to stay on once I put the door on. Any ideas

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Old 11-29-2010, 05:45 PM   #2
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Clean the flame sensor with fine emory paper. Should look like this one:
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Old 11-29-2010, 06:56 PM   #3
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Kinda sounds like a flame roll out switch yuri.

JLG it's time to call for a real furnace repair man. Flame roll outs are quite dangerous, that's why the safety doesn't let the furnace run. Diagnosing why it's doing that requires a person on site who knows what they are doing. Sorry but I think it's well beyond DIY.
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Old 11-29-2010, 06:59 PM   #4
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yeah. I guess you cannot push in a flame sensor.
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Old 12-02-2010, 10:32 AM   #5
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Hey Yuri, Great call on the Luxair, Cleaned Flame senor with Emery Cloth. Runs like a champ.


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Old 12-02-2010, 05:36 PM   #6
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Alls well that ends well.

"Safety switch" wuz door switch, yuk yuk

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