Miller Mobile home oil furnace


Old 03-08-15, 12:01 PM
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Miller Mobile home oil furnace

I have a Miller oil furnace model CMF 80 - p 0. after 3 minutes of operation the outer housing of the unit gets very hot. gauge test shows heat exchanger ok. anyone have any idea why the outer housing gets so hot in one spot?
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Old 03-08-15, 12:53 PM
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What kind of test gauge? A visual inspection is fairly easy & the best way to check for a bad heat exchanger in a CMF.

It is possible some of the insulation is missing from the interior of the cabinet which surrounds the heat exchanger.

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