Lennox G16 Conservator III Blower motor won't shut off.

Old 10-05-11, 05:40 PM
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Question Lennox G16 Conservator III Blower motor won't shut off.

My furnace's blower motor runs non stop. How do I fix it so it only runs when it is suppose to. Also when my furnance cycles the pilot light lights and then the burners come on for 45 secs and then the whole thing shuts off except the blower motor any ideas. If I jumper the pressure switch then the burners stay on?
Old 10-12-11, 11:14 PM
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Jumping out safeties is a very bad idea.
Old 10-13-11, 06:56 AM
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The furnace may be overheating and shutting off on the high temperature limit switch until the fan cools off the furnace.

Is the warm air plenum that collects warm air from the furnace warm to the touch or hot when the burners are cycling on and off?

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