Hisense AHM-080HCDSAA - Page 336

315
Troubleshooting
(3) Alarm Code
Code Category Content of Abnormality Leading Cause
02 Outdoor Unit Activation of Protection Device (High Pressure Switch)
Activation of PSH (Pipe Clogging, Excessive Refrigerant,
Inert Gas Mixing)
03
Transmission
Abnormality between Indoor and Outdoor
Incorrect Wiring, Loose Terminals, Disconnect Wire,
Blowout of Fuse, Outdoor Unit Power OFF
04 Abnormality between O.U. main PCB and Inverter
O.U. main PCB and Inverter Transmission Failure (Loose
Connector, Wire Breaking, Blowout of Fuse)
06 Voltage Abnormal Inverter Voltage Outdoor Voltage Drop, Insu󰀩cient Power Capacity
07
Cycle
Decrease in Discharge Gas Superheat
Excessive Refrigerant Charge, Failure of Thermistor,
Incorrect Wiring, Incorrect Piping Connection, Expansion
Valve Locking at Opened Position (Disconnect Connector)
08 Increase in Discharge Gas Temperature
Insu󰀩cient Refrigerant Charge, Pipe Clogging Failure of
Thermistor, Incorrect
Wiring,
Incorrect Piping Connection, Expansion Valve Locking at
Closed Position (Disconnect Connector)
22
Sensor on
Outdoor Unit
Outdoor Unit Ambient Thermistor(Ta)
Incorrect Wiring, Disconnecting Wiring Breaking Wire,
Short Circuit
23 Compressor Discharge Gas Thermistor (Td)
24 Heat Exchanger Liquid Pipe Thermistor (Te)
25 Heat Exchanger Liquid Pipe Thermistor 2 (Te2)
31
System
Incorrect Capacity Setting of Outdoor Unit and Indoor
Unit/water module
Excessive or Insu󰀩cient Indoor Unit / Total Capacity Code
38
Abnormality of Picking up Circuit for Protection in
Outdoor Unit
Failure of Protection Detecting Device (Incorrect Wiring of
O.U. main PCB)
43
Protection
Device
Activation of Low Compression Ratio Protection Device
Defective Compression (Failure of Compressor of
Inverter, Loose Power Supply Connection)
47
Activation of Low Pressure Decrease Protection Device
(Vacuum Operation Protection)
Insu󰀩cient Refrigerant, Refrigerant Piping, Clogging,
Expansion Valve Locking at Open Position (Loose
Connector)
48 Activation of Inverter Overcurrent Protection Device Overload Operation, Compressor Failure
51 Sensor Abnormal Inverter Current Sensor Current Sensor Failure
53
Inverter
Inverter Error Signal Detection
Error Signal Detection (IPM Error, Step-Out Detection,
PFC hardware Error)
54 Abnormality of Inverter Fin Temperature
Abnormal Inverter Fin Thermistor,
Inverter n thermistor protection activation
55 Inverter Failure O.U. main PCB Failure
57 Fan Controller Activation of Fan Controller Protection Abnormal speed of Fan-motor
EE Compressor
Compressor Protection Alarm
(It can not be reset from remote controller)
This alarm code appears when the following alarms*
occurs three times within 6 hours.
*02, 07, 08, 43 to 45, 47