Error Display - Fujitsu AB F18LAT Series Service Instruction

Split type, room air, conditioner, floor ceiling type, duct type, cassette type models indoor unit outdoor unit inverter
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2. TROUBLESHOOTING

2-1 ERROR DISPLAY

2-1-1 WIRED REMOTE CONTROLLER DISPLAY
1. SELF - DIAGNOSIS
When "EE" in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed servise personnel.
Unit number (usually 0)
SU MO TU WE TH FR SA
ex. Self-diagnosis check
Error code
Communication error
Communication error (Serial reverse transfer error)
Room temperature sensor error
Indoor heat exchanger temperature sensor error
Outdoor heat exchanger temperature sensor(outlet) error
Water drain abnormal
Outdoor temperature sensor error
Outdoor discharge pipe temperature sensor error
Discharge temperature error
Indoor EEPROM abnormal (Model No.)
Indoor fan motor abnormal
Outdoor communication signal error (Forward transfer signal error)
Compressor temperature sensor
IPM error
CT error
Compressor rotor location cannot detect
Outdoor unit fan motor error
Outdoor unit computer communication error
Indoor manual auto switch error
Exessive high pressure protection on cooling
PFC circuit error
Communication error
Communication error
Outdoor heat exchanger temperature sensor(middle) error
Compressor temperature
4-way valve
If "CO" appears in the unit number display, there is a remote controller error.
Refer to the installation instruction sheet included with the remote controller.
Error code
Error contents
(indoor unit
remote control)
error
(Main PCB
Display PCB)
(Main PCB
Display PCB)
error
error
(permanent stop)
02-01
Trouble
shooting
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16, 28
17
18
19
20
21
22
23
24
25
26, 27

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