Johnson Controls YVAHP072B31S, Service Manual

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3-48
Service Manual
TROUBLESHOOTING
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(H,Y)VAHR096B(3,4)1S to (H,Y)VAHR120B(3,4)1S and
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fails.
(a) Procedures
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failed outdoor unit will stop the operation. If two compressors are stopped simultaneously, the
stoppage cause is supposed to be d1-30. *1
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4. Start the operation with the wired controller.
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Do not perform an emergency operation when the insulation resistance is 0
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