2-33. E: 77. Heat sink thermistor error (Outdoor unit) .........................................................03-59
2-34. E: 86. High pressure switch error (Outdoor unit) ........................................................03-60
2-35. E: 94. Over current error (Outdoor unit)......................................................................03-61
2-36. E: 95. Compressor motor control error (Outdoor unit) ................................................03-63
2-37. E: 97. Outdoor unit fan motor error (Outdoor unit)......................................................03-64
2-38. E: 99. 4-way valve error (Outdoor unit).......................................................................03-65
2-39. E: 9A. Coil 1 (expansion valve 1) error .......................................................................03-67
2-40. E: A1. Discharge temperature error (Outdoor unit).....................................................03-68
2-41. E: A3. Compressor temperature error (Outdoor unit) .................................................03-70
2-42. E: A8. Refrigerant leakage sensor error (Indoor unit) .................................................03-72
3. Troubleshooting without error code........................................................03-73
3-1. Indoor unit—No power..................................................................................................03-73
3-2. Outdoor unit—No power...............................................................................................03-74
3-3. No operation (Power is on)...........................................................................................03-75
3-4. No cooling/No heating ..................................................................................................03-77
3-5. Abnormal noise.............................................................................................................03-79
3-6. Water leaking................................................................................................................03-80
4. Troubleshooting with error code (For wireless LAN adapter)...............03-81
4-1. E: 18. External communication error between indoor unit and wireless LAN adapter...03-81
4-2. Network communication error between wireless LAN router and wireless LAN adapter .......
......................................................................................................................................03-82
4-3. E: 18. Communication error..........................................................................................03-84
4-4. E: 18. Wireless LAN adapter non-energized.................................................................03-86
4-5. Mobile app setting method............................................................................................03-87
5. Service parts information .........................................................................03-89
5-1. Compressor..................................................................................................................03-89
5-2. Inverter compressor......................................................................................................03-90
5-3. Outdoor unit Electronic Expansion Valve (EEV) ...........................................................03-92
5-4. Indoor unit fan motor ....................................................................................................03-94
5-5. Outdoor unit fan motor..................................................................................................03-99
6. Thermistor resistance values.................................................................03-100
6-1. Indoor unit ..................................................................................................................03-100
6-2. Outdoor unit................................................................................................................03-101
CONTENTS (continued)
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