Question about Carrier 38CKC036 Air Conditioner

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Whats reason compressor trip for phase sequence trip

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This looks to be a bsaic 3 ton carrier.. I would double check the wiring from point a to point b as its possible one got switched. Where are you reading the info for phase sequence trip ?

Posted on Aug 21, 2010

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Posted on Jan 02, 2017

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Please note your fuse wire must be 2 to 3 times of running amps. Suppose running amps is 6.5, the fuse wire must be minimum 15 and maximum 20 amps. Always choose the maximum.
Other chances for fuse blown;

And in your a/c, If your fuse tripped as soon as compressor starts, check compressor winding with ohms. In between 2 terminal it should be equal in 3 phase compressor. In single phase compressor, SR must be the total of other two.If any huge difference it means winding weak. If any ohms reads between any terminal and grounding it means compressor grounded for which you have to replace compressor.
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I would wonder A if the wiring was heavey enough to carry that sort of load with out overheating B if the motor is big enough to do it for the same reason( ?what is the duty cycle?) C if the receiver is big enough to allow reasonable time between shut down and start up --- remembering that at start up the motor pulls double the current to start up and if it doesn `thave sufficient time to cool alittle before being called on to do it again and that would prompt the question ,does it have sufficient ventilation? these are all queries that would need addressing before I would try to offer a solution ,one thing is certain ,--there is something wrong

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