Hisense AHM-080HCDSAA - Page 339

318
Troubleshooting
Cause Code of Inverter Stoppage (iTC)
Stoppage Cause
Cause Code of Inverter
Stoppage (iTC)
Cause of failure
EERPOM Error or
Abnormal of Key
Parameters of
Compressor and PFC
22
The inverter EEPROM software parameters are faulty, please
re-write the software or replace the PCB.
The inverter software parameters are faulty, please re- write the
software or replace the PCB.
Abnormal PFC
Hardware
23 PFC hardware overcurrent protection.
Abnormal
Communication
25
Abnormal communication between the inverter and the master
control.
Power overload 26 Compressor output power overload protection.
Abnormal Speed of
DC Fan
28
DC fan abnormal speed protection, please check:
1. Whether the wiring of the DC fan is correct;
2. Whether the DC fan is working, and whether there are foreign
objects that prevent it from running;
3. If the DC fan does not work, try to replace the motor.
Instantaneous
Overcurrent of PFC
30
When the whole unit inputs overcurrent and the
e󰀨ective value is greater than 17.5A, the software protection will be
triggered.
PFC instantaneous overcurrent, software protection is triggered
when the peak value is greater than 40A.
Instantaneous
Overvoltage PFC
Generatrix
31 PFC DC bus instantaneous overvoltage fault.
Abnormal TFIN Sensor 32
The TFIN sensor is faulty, please check
1. TFIN sensor wiring status;
2. Whether the TFIN sensor is faulty, whether there is an open
circuit or a short circuit.
Abnormal Chip Check 33 Please conrm that the software is correct.
Abnormal AC Voltage 36
The AC input voltage is too high, please check whether the input
voltage of the whole unit is normal.
The AC input voltage is too low, please check whether the input
voltage of the whole unit is normal.