Service Manual
Table Of Contents
- SERVICE MANUAL
- 1. GENERAL INFORMATION
- 2. TECHNICAL DATA AND PARTS LIST
- 3. TROUBLESHOOTING
- 1. Error code
- 2. Troubleshooting with error code
- 2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit)
- 2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit)
- 2-3. E: 12. Wired remote controller communication error (Indoor unit)
- 2-4. E: 18. External communication error (Indoor unit)
- 2-5. E: 32. Indoor unit main PCB error (Indoor unit)
- 2-6. E: 35. MANUAL AUTO button error (Indoor unit)
- 2-7. E: 41. Room temperature sensor error (Indoor unit)
- 2-8. E: 42. Indoor unit heat exchanger sensor error (Indoor unit)
- 2-9. E: 51. Indoor unit fan motor error (Indoor unit)
- 2-10. E: 58. Intake grille error (Indoor unit)
- 2-11. E: 62. Outdoor unit main PCB error (Outdoor unit)
- 2-12. E: 63. Inverter error (Outdoor unit)
- 2-13. E: 64. PFC circuit error (Outdoor unit)
- 2-14. E: 71. Discharge thermistor error (Outdoor unit)
- 2-15. E: 73. Outdoor unit heat exchanger thermistor error (Outdoor unit)
- 2-16. E: 74. Outdoor temperature thermistor error (Outdoor unit)
- 2-17. E: 84. Current sensor error (Outdoor unit)
- 2-18. E: 94. Trip detection (Outdoor unit)
- 2-19. E: 95. Compressor motor control error (Outdoor unit)
- 2-20. E: 97. Outdoor unit fan motor error (Outdoor unit)
- 2-21. E: 99. 4-way valve error (Outdoor unit)
- 2-22. E: A1. Discharge temperature error (Outdoor unit)
- 3. Troubleshooting without error code
- 4. Troubleshooting with error code (For wireless LAN adapter)
- 4-1. E: 18. External communication error between indoor unit and WLAN adapter
- 4-2. Wireless LAN adapter error
- 4-3. Network communication error between wireless LAN router and WLAN adapter
- 4-4. E: 18. Communication error
- 4-5. E: 18. Wireless LAN adapter non-energized
- 4-6. Wireless LAN adapter Sleep mode (Indoor unit)
- 4-7. Mobile app setting method
- 5. Service parts information
- 6. Thermistor resistance values
- 4. CONTROL AND FUNCTIONS
- 1. Compressor frequency control
- 2. Auto changeover operation
- 3. Fan control
- 4. Louver control
- 5. Timer operation control
- 6. Defrost operation control
- 7. Various control
- 7-1. Auto restart
- 7-2. MANUAL AUTO operation
- 7-3. Forced cooling operation
- 7-4. 10 °C HEAT operation
- 7-5. ECONOMY operation
- 7-6. POWERFUL operation
- 7-7. Compressor preheating
- 7-8. Electronic expansion valve control
- 7-9. Prevention to restart for 3 minutes (3 minutes st)
- 7-10. 4-way valve control
- 7-11. Outdoor unit low noise operation
- 8. Various protections
- 5. FILED WORKING
2-19. E: 95. Compressor motor control error (Outdoor unit)
Indicator Indoor unit
Operation indicator 9 time flash
Timer indicator 5 time flash
Economy indicator Continuous flash
Error code E: 95
Detective actuator Outdoor unit
Main PCB 1. When running the compressor, if the detected rotor
location is out of phase with actual rotor location
more than 90°, the compressor stops.
2. After the compressor restarts, if the same operation
is repeated within 40 seconds, the compressor
stops again.
3. If 1. and 2. repeats 5 times, the compressor stops
permanently.
Compressor
Forecast of cause
Defective connection of electric components
Main PCB failure
Compressor failure
Check point 1. Check Noise from Compressor
Turn on Power and check operation noise.
→ If an abnormal noise show, replace compres-
sor.
↓
Check point 2. Check connection of around the compressor components
For compressor terminal, main PCB
• Check if connector is removed.
• Check erroneous connection.
• Check if cable is open. (Refer to inverter compressor in "Service parts information" on page 03-
64.)
→ Upon correcting the removed connector or mis-wiring, reset the power.
↓
Check point 3. Replace main PCB
If Check point 1, 2 do not improve the symptom, change main PCB.
↓
Check point 4. Replace compressor
If Check point 3 do not improve the symptom, change compressor.
↓
End
2-19. E: 95. Compressor motor control error (Outdoor unit) - (03-29) - 2. Troubleshooting with error code
TROUBLESHOOTING
TROUBLESHOOTING