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4. Troubleshooting with error code (For wireless LAN adapter)...............03-56

4-1. E: 18. External communication error between indoor unit and WLAN adapter .............03-56

4-2. Wireless LAN adapter error ..........................................................................................03-57

4-3. Network communication error between wireless LAN router and WLAN adapter.........03-58

4-4. E: 18. Communication error..........................................................................................03-60

4-5. E: 18. Wireless LAN adapter non-energized.................................................................03-62

4-6. Wireless LAN adapter Sleep mode (Indoor unit) ..........................................................03-63

4-7. Mobile app setting method............................................................................................03-64

5. Service parts information .........................................................................03-69

5-1. Compressor..................................................................................................................03-69

5-2. Inverter compressor......................................................................................................03-70

5-3. Outdoor unit Electronic Expansion Valve (EEV) ...........................................................03-71

5-4. Indoor unit fan motor ....................................................................................................03-73

5-5. Outdoor unit fan motor..................................................................................................03-74

5-6. IPM on transistor PCB ..................................................................................................03-75

6. Thermistor resistance values...................................................................03-77

6-1. Indoor unit ....................................................................................................................03-77

6-2. Outdoor unit..................................................................................................................03-78

CONTENTS (continued)

Fujitsu AOUG12LZAH1 User Manual

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