Gree GWH18QD-K6DNA1C Series Service Manual page 86

Service Manual
(12) Other Malfunction
1.IPM module temperature sensor is open-circuited (P7)
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2.Overheating protection of IPM module (P8)
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3.Detection circuit malfunctions of phase-current of compressor (U1)
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4.DC busbar voltage is too high (PH)
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5.DC busbar voltage is too low (PL)
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6.Malfunction of ODU DC fan (L3)
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Installation and Maintenance
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