Question about Rinnai Desa Vent-Free Infrared Gas Heater: Vent-Free Infrared Gas Heater(18,000 BTU)

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Infared heater the pilot lights but when i release even after 2 minutes the pilot goes out

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When was the last time you cleaned the pilot? In your owners manual there is a cleaning procedure. If you can't find the manual, go to You may be able to download one from their site.

Posted on Dec 19, 2007


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When I press down and turn the know the pilot lights but as soon as you let up on the knob to turn it there is a click and the pilot light goes out.. This is on my Mr. Heater Big Buddy

When the pilot lights continue holding the button down for a full minute and then release. It should stay lit then to allow you to turn it to the on position. If the pilot will not stay lit after holding it for the full minute, then the thermocouple will need to be replaced.
Hope this helps.

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Sounds like the igniter needs to be replaced. It is normal for a heater to run five or so minutes that means the thermostat is working. then restart when the temp calls for heat but if the igniter does not work it will not light up again.

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1 Answer

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The power pile (pilot generator) is defective. It produces a milivolt signal to ensure to keep the gas valve open. If it goes bad, the valve thinks the pilot is out, even when you are holding the button down, so when you release the button, it shuts the gas off to prevent excess gas buildup and a possible explosion.

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Hi there. You must continue to hold the knob in for at least 30 seconds before releasing. If the pilot still goes out, the "thermocouple" is bad. It's the little tube in the pilot flame. To replace, remove the main burner assembly/pilot. You can get a thermocouple at any hardware store. Ask questions while you are there.

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You pilot ignator is plugged.I take a small wire and run it in the hole every year and I also Blow the heaters out real well with air.THis has always worked far me.I need a phone number or email address to Pro Com because i'm having problems with a new one i just bought and I can't find the papework.Could you pleas eif you have this info email it to me
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