0 87 MAINTENACE
GMV5 COMPACT MULTI VRF UNIT
SERVICE MANUAL
2.12 IPM High Temperature Protection
IPM Module High Temperature Protection
Check if the error arises once the power is on? Replace the compressor drive board
Check if the screws have been fastened and if the
coolant have been applied to the IPM module?
It is finished
YES
NO
2.13 DC Bus High Voltage Protection
DC Bus High Voltage Protection
Check if the input voltage is larger than 460V?
Replace the compressor drive board
Adjust the voltage to 380V and then see if the error
is eliminated
It is finished
YES
NO
NO
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