Fujitsu AS G18KMTA Series Service Instruction page 3

2.TROUBLESHOOTING
2-1 ERROR DISPLAY
2-1-1 INDOOR UNIT AND WIRED REMOTE CONTROLLER DISPLAY
Please refer the flashing pattern as follows.
The OPERATION, TIMER and ECONOMY lamps operate as follows according to the error contents.
Error Contents
Serial communication error
Wired remote controller
communication error
Combination error
Indoor unit PCB model
information error
Manual auto switch error
Room temp. sensor error
Indoor unit Heat Ex. Middle temp.
sensor error
Indoor unit fan motor error
Outdoor unit main PCB model
information error
Inverter error
PFC circuit error
Trip terminal L error
Discharge temp. sensor error
Compressor temp. sensor error
Outdoor unit Heat Ex. liquid temp.
sensor error
Outdoor temp. sensor error
Current sensor error
High pressure switch error
Trip detection
Compressor rotor position
detection error
Outdoor unit fan motor error
4-way valve error
Discharge temp. error
Compressor temp. error
Indoor Unit Display
[ ]
OPERATION TIMER
(Green) (Orange)
1 time 1 time
1 time 2 times
2 times 3 times
3 times 2 times
3 times 5 times
4 times 1 time
4 times 2 times
5 times 1 time
6 times 2 times
6 times 3 times
6 times 4 times
6 times 5 times
7 times 1 time
7 times 2 times
7 times 3 times
7 times 4 times
8 times 4 times
8 times 6 times
9 times 4 times
9 times 5 times
9 times 7 times
9 times 9 times
10 times 1 time
10 times 3 times
02-01
Wired Remote
[ ] [ ]
ECONOMY
(Green)
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Continuous
Trouble
Controller
shooting
Display
11 1, 2
12 3
23 4
32 5
35 6
41 7
42 8
51 9
62 10
63 11
64 12
65 13
71 14
72 15
73 16
74 17
84 18
86 19
94 20
95 21
97 22
99 23
24
A1
A3 25