Question about Desa International GWRN18 Infra-Red Wall Mounted Panel Heater

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The flame is orange and I noticed it was running high and when we leave it on one burner it wants to shut off. I have dusted and cleaned it and it didn't improve it. Now when we go to light it usually you only have to hold the knob down a couple seconds. Now it is almost impossible to light...

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Sounds like thermocouple is part of the problem as it relates to lighting the heater. Overtime, they do become pitted or corroded and should be replaced. As far as the orange flame when running on high is concerned, it sounds like the air intake valve on the burner is partially clogged with dust or lint. I realize you said, "I have dusted and cleaned it and it didn't improve it" But, if you didn't take the front of the heater cabinet off and cleaned all if the interior (including the burners, the plaques, the pilot and the interior walls of the cabinet), your cleaning wasn't sufficient. A Shop Vac with a hose, brush attachment and crevice tool works real well to help you accomplish this. Also, a can of compressed air with a straw nozzle (like you clean your computer with) will aid you in cleaning the pilot orifice and the Oxygen Depletion Sensor (ODS). To further assist you, I have included a link to your Owners Manual (in case you have misplaced yours) that you can download and print for future reference.Be sure the heater is cool and the gas has been turned off to the heater, before attempting to clean the heater.

http://www.desatech.com/manuals/Vent-Free%20Heaters/107885-01.pdf

Hope this helps you to solve the problem.

Posted on Mar 19, 2011

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