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DC Fan Motor Communication Error
There is a communication error between the fan
speed control module and the main board.
Check the wiring and connection
between the fan speed control
module and the main board.
Inverter IPM Overcurrent Shutdown
Inverter IPM input current is too high.
Check the current measurement
and adjust/replace if necessary.
Compressor Start-up Failure
Voltage too low.
Damage to inverter.
Check the voltage measurement.
Check the inverter for damage.
Power Factor Correction (PFC) Error
There is an error with the power factor correction
circuit.
Check the power correction
wiring for a break or short circuit.
The DC bus voltage is higher than the overload
protection limit.
Check the input voltage
measurement.
The DC bus voltage is lower than the underload
protection limit.
Check the input voltage
measurement.
The AC input voltage is low causing the input
current to be low.
Check the input voltage
measurement.
The AC input voltage is high causing the input
current to be high.
Check the input voltage
measurement.
The input voltage reading is incorrect/out of
range.
Check the input voltage
measurement.
DSP and PFC Communication Error
There is a communication error between the
DSP and the PFC.
Check the wiring and connection
between the DSP and the PFC.
There is a communication error between the
DSP and the inverter.
Check the wiring and connection
between the DSP and the
inverter.
Inverter Communication Error
There is a communication error between the
inverter and the main board.
Check the wiring and connection
between the inverter and the
main board.
IPM Over Temperature Protection
There IPM module temperature is too high.
Check the current measurement
and adjust/replace if necessary.
The magnetic force of the compressor motor is
too low.
Check the operation of the
refrigeration circuit in terms of
gas pressure and charge.
Input Voltage Lacking Phase
The input voltage has lost a phase.
Check the input voltage
measurement.
The IPM current reading is incorrect/out of
range.
Check the IPM current
measurement.
Module/Radiator Sensor Error
A transducer has overheated.
Check the current measurement.