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Msh 30tv airconditioner compressor doesn't start. 5 flashes tells me to check if compressor is locked or not. How do I do this please?

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You'll need a clamp on style ammeter to check it. On the data plate of the unit, look for the "LRA" Locked Rotor Amps value. Clamp the jaws of the ammeter around just one of the large black wires connected to the compressor and try starting the unit while observing the reading on the meter. If it's close to the value on the data plate, then your compressor is indeed locked. A bad start capacitor could be the culprit too

Posted on Jan 05, 2014

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