163
TROUBLESHOOTING
Error frequen-
cy until error
display
Display
Treatment
Method of diagnosis / repair
Possible major causes Diagnosis / Repair
※1 ※2
2/10 hours Error C B 1. Connector of compressor intake temper-
ature sensor contact failure
2. Compressor intake temperature sensor
failure
3. Harness of compressor intake tempera-
ture sensor short circuit
4. Compressor failure
5. Reversing valve is locked in the middle
position
1. Check for connector of compressor
intake temperature sensor connection
2. Inspect compressor intake temperature
sensor (Refer to P229, 53)Check for
Readings of the Outdoor Temperature
Sensors)
3. Check compressor temperature
4. Check for temperature around the
reversing valve (Refer to P227, 49)In-
spect Reversing Valve)
2/30 minutes Error C B
2/15 minutes Error C, E B 1. Connector contact failure
2. Engine coolant temperature sensor
failure
3. Harness disconnection
1. Check connector connection
2. Refer to P218, 28)Inspect Engine
Coolant Temperature Sensor
1 Error C, E B 1. Engine coolant temperature sensor
failure
2. Harness short circuit
Refer to P218, 28)Inspect Engine Cool-
ant Temperature Sensor
1 Warning Z N ? Conduct periodic inspection (Refer to P38
and after, [PERIODIC INSPECTION])
1 Warning Z N
1ErrorC, EN
1 Error E B Engine running without engine coolant
refilled
Refer to P214, 23)Check Engine Coolant
Amount or Leakage Location
1 Error C B 1. Connector contact failure
2. Refrigerant high pressure switch failure
3. Harness disconnection
1. Check connector connection
2. Refer to P222, 38)Inspect Refrigerant
High Pressure Switch
1 Error C, E B 1. Connector contact failure
2. Outside air temperature sensor failure
3. Harness disconnection
1. Check connector connection
2. Refer to P228, 51)Check for Readings
of the Outside Air Temperature Sen-
sor
1 Error C, E B 1. Outside air temperature sensor failure
2. Harness short circuit
Refer to P228, 51)Check for Readings of
the Outside Air Temperature Sensor
1 Error C B 1. Refrigerant high pressure sensor failure
2. Harness short circuit
Refer to P223, 39)Inspect Refrigerant
High Pressure Sensor
1 Error C B 1. Connector contact failure
2. Refrigerant high pressure sensor failure
3. Harness disconnection
1. Check connector connection
2. Refer to P223, 39)Inspect Refrigerant
High Pressure Sensor
1 Error C B 1. Connector contact failure
2. Refrigerant low pressure sensor failure
3. Harness disconnection
1. Check connector connection
2. Refer to P224, 46)Inspect Refrigerant
Low Pressure Sensor
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