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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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My Lennox whisper heat furnace will heat up but fan will not

Customer Question

My Lennox whisper heat furnace will heat up but fan will not come on after a few minutes the flame goes out I hard wired the fan and flame works fine but of course the fan doesn't shut off is there a heat sensitive switch for the fan and if so where is it and what does it look like
Submitted: 12 months ago.
Category: HVAC
Expert:  airheatman replied 12 months ago.

Can you give me the complete model number on the furnace? It will be on a label on inside furnace panel just above burners.Remove panel to burner compartment and look inside. The model number will help me give accurate assistance for your specific unit.

Below is a link showing where to find label with model number:

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

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