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WA 380 Komatsu A/c problems

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:BangheadSo operator tells me ac blowing hot and both of his condenser motors are not turning. Did a quick check all fuses are good no power at both the condenser pig tail while a/c on. Does anyone know which relay the wires run to. A/c low side 30 high side 400 when cycling. anyone know if these ac units have a high pressure switch. am guessing their is some restriction some where may be drier blocking the high pressure so it wont cool. looking for some advice.

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