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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 have a Lennox 50a66-123 gas furnace and cannot locate the

Customer Question

I have a Lennox 50a66-123 gas furnace and cannot locate the flame sensor nor a diagram on line for this model. I believe the flame sensor needs to be cleaned. Does anyone have a diagram or photo? Thank you.
Submitted: 11 months ago.
Category: HVAC
Expert:  Rick replied 11 months ago.

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

The model you list is for a control board not the furnace itself. I need the actual furnace model number which you can find on the rating tag inside the burner compartment

Customer: replied 11 months ago.
I will respond with that in a few hours.
Expert:  Rick replied 11 months ago.

OK

Customer: replied 11 months ago.
I am not at my home. will be home in a few hours and give you the model number
Expert:  Rick replied 11 months ago.

Ok, I'll be online until ~7 pm EST today then again at 8 am tomorrow but I do take breaks. I'll respond as soon as I can