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18 Troubleshooting
18.1 Indoor unit error code explanation:
For Console
Indoor EEPROM malfunction
Communication malfunction between indoor and outdoor units
Indoor fan speed has been out of control
Open or short circuit of T1 temperature sensor
Open or short circuit of T2 temperature sensor
Overcurrent protection (For some units)
Open or short circuit of T4 temperature sensor
Open or short circuit of T3 temperature sensor
Open or short circuit of T5 temperature sensor
Outdoor EEPROM malfunction (For some units)
Outdoor fan speed is out of control
Open or short circuit of T2B temperature sensor (For free-match indoor units)
Inverter compressor drive protection
For other type
Communication malfunction between indoor and outdoor units
Water level alarm
Overcurrent protection (For some units)
Outdoor fan speed is out of control
Open or short circuit of T2B temperature sensor (For free-match indoor
units)
Communication error between auto-lifting panel and slim cassette (For
Malfunction
O (on)
Malfunction
Error Code
E1
EE
F0
F4
F5
F6
F7
64
Operation Lamp
Timer Lamp
(flashes)
X
1
X
2
X
4
X
5
X
6
O
1
O
2
O
3
O
4
O
5
O
6
O
7
☆
1
☆
2
☆
4
☆
5
☆
6
☆
7
Operation Lamp
Timer Lamp
(flashes)
X
1
X
2
X
4
X
5
X
6
X
8
O
1
2
3
4
O
5
O
6
O
7
O
8
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