Fujitsu AUU18RML Service Manual page 17

Inverter multi air conditioner
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2009.02.03
Troubleshooting at the wired remote control LCD
Self diagnosis
If an error occurs, the following display will be shown.
("EE" will appear in the set room temperature display.)
Unit number
SU MO TU WE TH FR SA
Error
Error contents
code
01
13
Indoor signal error
26
27
00
Wired remote control abnormal
02
Indoor room thermistor error
04
Indoor heat exchanger thermistor (middle) error
28
Indoor heat exchanger thermistor (inlet) error
09
Float switch operated
0C
Outdoor discharge pipe thermistor error
06
Outdoor heat exchanger thermistor (outlet) error
0A
Outdoor thermistor error
15
Compressor thermistor error
1d
2-way valve thermistor error
1E
3-way valve thermistor error
29
Outdoor heat exchanger thermistor (middle) error
20
Indoor manual auto switch abnormal
2A
Power supply frequency detection error
17
IPM protection
18
CT error
1A
Compressor location error
1b
Outdoor fan error
1F
Connected indoor unit abnormal
1c
Outdoor unit computer communication error
12
Indoor fan abnormal
0F
Discharge temperature error
24
Exessive high pressure protection on cooling
2c
4-way valve abnormal
16
Pressure switch abnormal
2b
Compressor temperature error
19
Active filter abnormal
25
PFC circuit error
If "CO" appears in the unit number display,
there is a remote control error.
Error code
Ex. Self-diagnosis
16

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