Panasonic CU-2E15GBE Manuel D’Utilisation

57 

H11 

Indoor/Outdoor abnormal 
communication 

> 1 min after starting 

operation 

Indoor fan 

operation only 

(single type only) 

• Internal/external cable connections 

• Indoor/outdoor PCB 

 

H12 

Indoor unit capacity unmatched 

- 

- 

•  Indoor unit total capacity 

Multi only

H14 

Intake air temperature unmatched 

- 

- 

•  Intake air temperature sensor 

(defective or disconnected) 

 

H16 Outdoor 

Current 

Transformer 

- 

- 

•  Decreased amount of refrigerant 

• Outdoor PCB 

 

H19 

Indoor fan motor mechanism lock 

- 

- 

• Fan motor 
• Indoor PCB 

 

H23 

Indoor heat exchanger temperature 
sensor 

Continue for 5 sec 

- 

•  Heat exchanger temperature sensor 

(defective or disconnected) 

 

H27 

Outdoor air temperature sensor 

Continue for 5 sec 

○ 

(Single type only) 

•  Outdoor air temperature sensor 

(defective or disconnected) 

 

H28 

Outdoor heat exchanger temperature 
sensor 1 

Continue for 5 sec 

○ 

(Single type only) 

•  Outdoor heat exchanger temperature 

sensor (defective or disconnected) 

 

H30 

Outdoor discharge pipe temperature 
sensor 

Continue for 5 sec 

- 

•  Outdoor discharge pipe temperature 

sensor (defective or disconnected) 

 

H32 

Outdoor heat exchanger temperature 
sensor 2 (discharge pipe temp) 

Continue for 5 sec 

- 

•  Outdoor heat exchanger temperature 

sensor (defective or disconnected) 

Multi only

H34 

Outdoor heatsink temperature sensor 
at Control Board 

Continue for 2 sec 

- 

•  Outdoor heatsink temperature sensor 

at control board (defective or 
disconnected) 

Multi only

H36 

Outdoor gas pipe temperature sensor 

Continue for 2 sec 

- 

•  Outdoor gas pipe temperature sensor 

(defective or disconnected) 

Multi only

H37 

Outdoor liquid pipe temperature 
sensor 

Continue for 2 sec 

- 

•  Outdoor liquid pipe temperature 

sensor (defective or disconnected) 

Multi only

H39 

Abnormal indoor operating unit or 
standby units 

- - 

•  Piping connection error 
•  Indoor/outdoor connection cable 

connection error 

Multi only

H41 

Abnormal wiring or piping connection 

- 

- 

•  Wiring or piping connection 

CU-

2E15GBE

H97 

Outdoor fan motor mechanism lock 

- 

- 

•  Outdoor Fan Motor 

 

H98 

Indoor high pressure protection 

- 

- 

•  Air filter dirty 
•  Air circulation short circuit 

 

H99 

Indoor heat exchanger freeze 
prevention 

- - 

• Insufficient refrigerant 
•  Air filter dirty 

 

F11 

Cooling/heating cycle changeover 
abnormality 

4 times occurrences 

within 30 minutes 

- 

• 4-way valve 

• V-coil 

 

F17 

Indoor standby unit freezing 

- 

- 

•  Outdoor expansion valve leakage 

•  Indoor unit pipe temperature sensor 

 

F90 

PFC circuit protection 

- 

- 

• Outdoor PCB 

•  Outdoor fan motor 

 

F91 

Refrigerant cycle abnormality 

2 times occurrences 

within 20 minutes 

- 

•  No refrigerant (3-way valve is closed)

 

F93 

Outdoor compressor abnormal 
revolution 

4 times occurrences 

within 20 minutes 

- 

• Compressor 

 

F95 

Cooling high pressure protection 

4 times occurrences 

within 20 minutes 

- 

•  Outdoor refrigerant cycle 

 

F96 

IPM (power transistor) overheating 
protection 

- - 

• Express refrigerant 

•  Improper heat radiation 

• Outdoor PCB 

 

F97 

Outdoor compressor overheating 
protection 

4 times occurrences 

within 10 minutes 

- 

• Insufficient refrigerant 

• Compressor 

 

F98 

Total running current protection 

3 times occurrences 

within 20 minutes 

- 

• Excess refrigerant 

•  Improper heat radiation 

 

F99 

Outdoor Direct Current (DC) peak 
detection 

7 times occurrences 

- 

• Outdoor PCB 

• Compressor 

 

 
Note: 
“○” – Frequency measured and fan speed fixed.