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Old 06-26-2019, 11:27 AM   #1
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Noisy Atwood AC

I have a 15.5 Atwood (Dometic) air conditioner with heat pump. When selecting Auto Cool mode the fan runs continuously, which is normal. When cooling is needed the compressor starts and runs until selected temperature is reached. It works just fine BUT when the compressor shuts down it makes an instant stop. No slowdown..just stop. When it does this I can hear it clearly and it makes a “thumping” motion that sounds and feels like a rubber ball got bounced off the roof.

I talked to Dometic and they didn’t have a clue. Anyone else notice something like those?
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Old 06-26-2019, 01:59 PM   #2
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Compressor mount bolts may be loose.
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Old 06-26-2019, 02:18 PM   #3
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Quote:
Originally Posted by Scrapper View Post
Compressor mount bolts may be loose.
Interesting. I’ll climb up there in the morning to check. Too hot today to be in the space between the carport roof and the MH.
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