Question about Williams 3003622 Ceramic Wall Mounted Panel Heater

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Once the heater reaches the set temperature at the thermostat it shuts off....completely. The flame goes out, pilot light goes out, and i have to manually ignite again. I had this problem a year ago and i tapped on the valve assembly (The part where the black gas knob is located on) and it worked for a few weeks....meaning it shut off at the set temperature, and kicked back on automatically when it got too cold. Now it just shuts off when the temperature at the thermostat is reached.

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It sounds to me like you have some small dirt or rust particles inside the gas valve that are hindering the valve from fully opening. Before I spent the money for a new gas valve I would make sure that the burners were clean and also clean pilot orifice. Replace thermocouple if it appears to be burned or deformed. You can turn thermostat up a little bit at a time and try tappimg on valve body to see if you can get it to free up. Unfourtunatly there are no repairable parts insid the gas valve so if it comes to that you will need to replace the valve. Hope this helps you and thanks.

Posted on Dec 30, 2010

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