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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I'm ***** *****
, I have a lennox G60UHV(X) gas

Customer Question

Customer: Hi I'm ***** *****
JA: Thanks. Can you give me any more details about your issue?
Customer: I have a lennox G60UHV(X) gas furnace. I just replaced the ignitor and the unit fired up OK but that only lasted about 45 seconds after the blower motor turned on. Ther unit shut down and upon trying to restart the signal lights indicated that the primary or secondary limit switch is open. Same thing happens after every restart attempt. Got any suggestions ?
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Submitted: 11 months ago.
Category: HVAC
Expert:  airheatman replied 11 months ago.

Did you get any flame rollout when it first started? Check for rollouts near burners that may have ripped.If so button in center should push in to reset.

http://i.imgur.com/CGkB9sa.jpg

Expert:  airheatman replied 11 months ago.

Located just above burners