Panasonic CS-E7JKEW / CU-E7JKE / CS-E9JKEW / CU-E9JKE / CS-E12JKEW / CU-E12JKE / CS-E15JKEW / CU-E15JKE / CU-E15JKE-1 / CS-E7JKEW-3 / CU-E7JKE-3 / CS-E9JKEW-3 / CU-E9JKE-3 / CS-E12JKEW-3 / CU-E12JKE-3 / CS-XE7JKEW / CS-XE9JKEW / CS-XE12JKEW / CS-XE15JKEW Service Manual ▷ View online
97
16.4.16. H37 (Outdoor Liquid Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
During startup and operation of cooling and heating, the temperatures detected by the outdoor liquid pipe temperature sensor
are used to determine sensor errors.
are used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
98
16.4.17. H58 (Patrol Sensor Abnormality)
Malfunction Decision Conditions
• If Patrol sensor feedback is 0V or 5V continuous for 6 hours.
• Error will display only when the Patrol operation is ON.
• Error will display only when the Patrol operation is ON.
Malfunction Caused
• Faulty connector connection.
• Faulty Patrol sensor.
• Faulty Patrol sensor.
Troubleshooting
99
16.4.18. H97 (Outdoor Fan Motor - DC Motor Mechanism Locked)
Malfunction Decision Conditions
The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor.
Malfunction Caused
• Operation stops due to short circuit inside the fan motor winding.
• Operation stops due to breaking of wire inside the fan motor.
• Operation stops due to breaking of fan motor lead wires.
• Operation stops due to Hall IC malfunction.
• Operation error due to faulty outdoor unit PCB.
• Operation stops due to breaking of wire inside the fan motor.
• Operation stops due to breaking of fan motor lead wires.
• Operation stops due to Hall IC malfunction.
• Operation error due to faulty outdoor unit PCB.
Troubleshooting
100
16.4.19. H98 (Indoor High Pressure Protection)
Error Code will not display (no Timer LED blinking) but store in EEPROM
Malfunction Decision Conditions
During heating operation, the temperature detected by the indoor pipe temperature sensor is above 60
°C.
Malfunction Caused
• Clogged air filter of the indoor unit
• Dust accumulation on the indoor unit heat exchanger
• Air short circuit
• Detection error due to faulty indoor pipe temperature sensor
• Detection error due to faulty indoor unit PCB
• Dust accumulation on the indoor unit heat exchanger
• Air short circuit
• Detection error due to faulty indoor pipe temperature sensor
• Detection error due to faulty indoor unit PCB
Troubleshooting
Click on the first or last page to see other CS-E7JKEW / CU-E7JKE / CS-E9JKEW / CU-E9JKE / CS-E12JKEW / CU-E12JKE / CS-E15JKEW / CU-E15JKE / CU-E15JKE-1 / CS-E7JKEW-3 / CU-E7JKE-3 / CS-E9JKEW-3 / CU-E9JKE-3 / CS-E12JKEW-3 / CU-E12JKE-3 / CS-XE7JKEW / CS-XE9JKEW / CS-XE12JKEW / CS-XE15JKEW service manuals if exist.