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

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Vent free infared heater

Brand new last season my LP vent free IR heater worked perfectly. This season, the far right heater plaque glows for a short while then it starts "popping" steady, it doen't glow and a blue flame can be seen on the front side of the plaque. The other 3 plaques work perfectly. I used low pressure compressed air and blew out the area, no change.
Any suggestions

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What you are experiencing is common if the plaques are either out of alignment or the burner is dirty. I know you said you cleaned it with low pressure air, but you need at least 120 PS. of air to clean the burner and plaques as per the owners manual.

Posted on Nov 15, 2007


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