Question about Dometic 57915531 Air Conditioner

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Blower motor won't start

On my Dometic model 57915.531
Air Conditionned, blower motor won't start

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May be a dead start cap

Posted on Apr 24, 2010

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Hi!!

It seems like the blower motorr is not kicking in. Turn breaker OFF, remove the grill, check that electrical connections are nice and tight, and turn breaker back ON, start unit and see if evaporator coil is gatting cold, if so, Turn Breaker off, remove blower motor capacitor and test it, if capacitor OK, blower motor needs to be replaced.

Good Luck!! Rate this Post!!

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My sheet shows part # 3100248.420 as fan run capacitor.You may have an updated number. Check voltage outputs labeled on it are same as on old one, and double check wiring is correct, to and from capacitor. Be careful not to mistake compressor start capacitor as well. By sounds of number, it's probably the right one.

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