2-34. E: 86. High pressure switch error (Outdoor unit) ........................................................03-50
2-35. E: 94. Over current error (Outdoor unit)......................................................................03-51
2-36. E: 95. Compressor motor control error (Outdoor unit) ................................................03-53
2-37. E: 97. Outdoor unit fan motor error (Outdoor unit)......................................................03-54
2-38. E: 99. 4-way valve error (Outdoor unit).......................................................................03-55
2-39. E: 9A. Coil 1 (expansion valve 1) error .......................................................................03-57
2-40. E: A1. Discharge temperature error (Outdoor unit).....................................................03-58
2-41. E: A3. Compressor temperature error (Outdoor unit) .................................................03-60
2-42. E: A8. Refrigerant leakage sensor error (Indoor unit) .................................................03-62
3. Troubleshooting without error code........................................................03-63
3-1. Indoor unit—No power..................................................................................................03-63
3-2. Outdoor unit—No power...............................................................................................03-64
3-3. No operation (Power is on)...........................................................................................03-65
3-4. No cooling/No heating ..................................................................................................03-67
3-5. Abnormal noise.............................................................................................................03-69
3-6. Water leaking................................................................................................................03-70
4. Troubleshooting with error code (For wireless LAN adapter)...............03-71
4-1. E: 18. External communication error between indoor unit and WLAN adapter .............03-71
4-2. Wireless LAN adapter error ..........................................................................................03-72
4-3. Network communication error between wireless LAN router and WLAN adapter.........03-73
4-4. E: 18. Communication error..........................................................................................03-75
4-5. E: 18. Wireless LAN adapter non-energized.................................................................03-77
4-6. Mobile app setting method............................................................................................03-78
5. Service parts information .........................................................................03-83
5-1. Compressor..................................................................................................................03-83
5-2. Inverter compressor......................................................................................................03-84
5-3. Outdoor unit Electronic Expansion Valve (EEV) ...........................................................03-86
5-4. Indoor unit fan motor ....................................................................................................03-88
5-5. Outdoor unit fan motor..................................................................................................03-93
6. Thermistor resistance values...................................................................03-94
6-1. Indoor unit ....................................................................................................................03-94
6-2. Outdoor unit..................................................................................................................03-95
CONTENTS (continued)