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Tim H.
Tim H., HVAC Professional
Category: HVAC
Satisfied Customers: 3971
Experience:  Experienced in all aspects of HVAC, both residential and commercial.
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I am getting 4 flashes on a rodgers 50a51 controller.

Customer Question

I am getting 4 flashes on a white rodgers 50a51 controller. Furnace comes on, blower comes on (Lo) after about 5 minutes flame goes off and led flashes 4 times indicating thermal protection device open. ???
Submitted: 1 year ago.
Category: HVAC
Expert:  Tim H. replied 1 year ago.

Hi, I'm Tim and I'm an HVAC expert here to help answer your question(s). Please provide all the information I ask for since I'm not onsite. At the end of our dialog you will be asked to rate my service, but please wait until then and all your question(s) have been answered satisfactorily. Thanks for your business!

Good morning! Can I get full model number of furnace should I need to pull up a wiring diagram? What have you checked so far? I would start by checking the furnace filter, and turn fan on to make sure blower is working OK.

Customer: replied 1 year ago.
Thanks, ***** ***** left a message for customer service that I already solved the problem. Bill
Expert:  Tim H. replied 1 year ago.

OK, thanks for the update.

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