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· Hvac Pro
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Does it have s viewing window in one of the doors that has some red and yellow LEDS?

They give you a error code if it fails. The code is usually in fine print on the edge of the wiring diagram on the back of the blower door.

If you have not done it start by cleaning the flame sensor which sits in front of one of the burners. Use CLEAN steel wool or #800 emory paper or call a Pro as they can be difficult to do on Rheems.

Should look like this one.


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