Hisense air conditioner fault codes

FaultFault descriptionFault description
code
1Outdoor environment temperature sensor faultOutdoor environment temperature sensor short circuit or open circuit
2The outdoor coil sensor faultThe outdoor coil temperature sensor short circuit or open circuit
3Current protective device
4EEprom Data errorEEprom Data error or EE chip fault
5Refrigeration and freezing or thermal overload protectionRefrigeration indoor coil temperature is too low or heating the indoor coil temperature too high
6AC motor fault
7Indoor and outdoor communication faultOutdoor continuously for 2 minutes without receipt of indoor communication data
8Phase current imbalance
9Current U phase
10Current V phase
11Sequence errorThree phase power supply wiring line sequence error
12Phase detection phase
13Compressor overheat protection deviceCompressor overheating protector tripping
14High voltage switch motor protection/Pressure shutdown protectionToo high system pressure leads to high pressure switch tripping or pressure sensors to detect the pressure too high to achieve shutdown protection pressure
15Low voltage switch protection/Low pressure protection shutdownSystem low pressure causing low pressure switch tripping or pressure sensors to detect the pressure is too low to achieve the shutdown protection pressure
16Refrigeration overload protectionThe outdoor coil temperature is too high to reach refrigeration temperature shutdown protection
17Exhaust temperature sensor faultExhaust temperature sensor short circuit or open circuit
18AC voltage of high and low voltage protection / faultPower input AC voltage is too low or too high
19Intake air temperature sensor faultExhaust temperature sensor short circuit or open circuit
20Condenser entrance temperature sensor faultCondenser entrance temperature sensor short circuit or open circuit
21The outlet of the condenser temperature sensor faultThe outlet of the condenser temperature sensor short circuit or open circuit
22The defrosting sensor faultThe outlet of the condenser temperature sensor short circuit or open circuit
23Expansion valve A tube sensor faultExpansion valve A tube sensor short circuit or open circuit
24Expansion valve B tube sensor faultExpansion valve B tube sensor short circuit or open circuit
25Expansion valve C tube sensor faultExpansion valve C tube sensor short circuit or open circuit
26Expansion valve D tube sensor faultExpansion valve D tube sensor short circuit or open circuit
27Expansion valve A thick pipe sensor faultExpansion valve A thick pipe sensor short circuit or open circuit
28Expansion valve B thick pipe sensor faultExpansion valve B thick pipe sensor short circuit or open circuit
29Expansion valve C thick pipe sensor faultExpansion valve C thick pipe sensor short circuit or open circuit
30Expansion valve D thick pipe sensor faultExpansion valve D thick pipe sensor short circuit or open circuit
31High discharge pressure fault
32Low suction pressure fault
41Current sensor fault
42Voltage sensor fault
43H Pressure sensor fault
44L Pressure sensor fault
45IPM fault
46IPM Communication fault
47Too high exhaust temperature shutdown
48Outdoor DC fan fault
49Outdoor DC fan fault
90Forced expansion valve
91IPM Temperature rise too high downtime
92Compression ratio is too large to stop
93The machine number and set the number of inconsistencies fault
94outdoor address conflict
95Refrigerant serious excessive downtime
96Refrigerant shortage downtime
97Four way valve fault