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Intertherm propane furnace makes popping sound when running

\015 Furnace is in a mobile home and has not been run for over a year. it lights off ok , but starts popping after 2 to 3 minutes. the fuel company filled the propane tank and replaced two gas regulators that were external to the furnace. the furnace continues to run and makes the popping sound every couple of minutes. the main burner flame appears to be yellow in color.can anyone give us advice on this problem? thanks jim\015

Answers :

It sounds like you have a possible hole in the heat exchanger. Turn the heat off and turn the fan on. If you feel any air coming back out of the heat exchanger, you have a hole. A yellow flame is not a good sign. I would even consider having a service professional come out and take a look.

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Intertherm propane furnace makes popping sound when running

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