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HVAC Guru
HVAC Guru, HVAC TECH
Category: HVAC
Satisfied Customers: 13951
Experience:  15yrs in the HVAC industry with certificates and degrees.
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I have a Ruud gas fired heater mod # FC35B3XC1A When it

Customer Question

I have a Ruud gas fired heater mod # FC35B3XC1A
When it turns on I get a draft for a few minutes and when the burner comes on
It fires up for a few seconds then turns off. Next the heater repeats the same thing over and over. What is the problem and how can I repair?
Submitted: 1 month ago.
Category: HVAC
Expert:  HVAC Guru replied 1 month ago.

Hello, one minute while I get some information together.

Expert:  HVAC Guru replied 1 month ago.

Hello and thanks for using this service! If you are a JA Member I would like to personally thank you and welcome you back! I am HVAC Guru an extremely experienced tech on the site and I try to get to as many customers as I can. NOTE it takes time for me to type research and add links so please wait for me to respond back I can only do this so fast. Secondly, I do not know your skill level so please try and let me know if I am going beyond your knowledge or comfort zone thanks! I strive for a 5 star rating from everyone especially our JA members.

Answer:

Clean off the flame sensor and then try it. Use some fine sandpaper and clean it off.

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