DC Inverter Multi
VRF Service Manual
185
6) Solution to the Current Transducer Error
Replace the compressor drive
board
Current Transducer Error
It is finished
7) Solution to IPM High Temperature Protection
It is finished
IPM Module High
Temperature Protection
Check if the error
arises once the
power is on?
Check if the screws
have been fastened and if the coolant
have been applied to the IPM
module?
Replace the compressor drive
board
YES
NO
8) Solution to Fan Motor High Drive Current Protection
It is finished
Fan Motor High Drive Current
Protection
Check if the resistance
between U, V, W is equal and if
the ground is shortcut?
Replace the fan motor drive
board
Replace the motor
YES
NO
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