Evolution compressor won't start

Problems related to residential installations.

Evolution compressor won't start

Postby dansendlessprojects » Wed Aug 10, 2011 5:43 pm

Im working on a 08 evolution 2 stage a/c, The contactor that closes the circuit to the start terminal \ blue wire on the compressor wont close. Drawing 52 amps on black, 70 amps on yellow and 0 on blue on compressor wires. I even tried pushing in the second contactor on starting -no change. I installed a new circuit board and contactor didn't help. the main contactor closes and the compressor trys then goes out on overload. Also the start relay 24v grey wires from board only energize for a second then cut out. is that normal? Also changed compressor capacitor didn't help. Thanks for any help in advance, Dan
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