Troubleshooting With The Indoor Display - Fujitsu AUYF18LBL Service Manual

INDOOR UNIT

Troubleshooting with the indoor display

Error is displayed on the wired and
wireless remote control.
CASSETTE TYPE
FILTER Lamp
TIMER Lamp
(red) (orange)
MANUAL AUTO
CEILING TYPE
2009.01.13
OPERATION
Lamp
(green)
OPERATION Lamp
(green)
TIMER Lamp
(orange)
FILTER Lamp
(red)
Lamps show error contents by flashing as follows.
TIMER
OPERATION
Lamp
Lamp
off 2 times
off 3 times
off 4 times
off 5 times
off 8 times
2 times 2 times
2 times 3 times
2 times 4 times
2 times 6 times
3 times 2 times
3 times 3 times
3 times 4 times
3 times 7 times
3 times 8 times
off
3 times
3 times off
3 times off
3 times off
4 times 2 times
4 times 4 times
5 times 2 times
5 times 3 times
5 times 5 times
5 times 6 times
5 times 7 times
5 times 8 times
5 times
off
6 times 2 or 3 times
7 times 2 times
7 times 3 times
7 times 4 times
7 times 5 times
7 times 6 times
7 times 7 times
8 times
2 or 3 times
8 times
4 times
8 times 6 times
9 times
2 times
9 times
3 times
9 times
4 times
Flash means "0.5 second on / 0.5 second off".
34
FILTER
Error contents
Lamp
off
off
Indoor signal error
off
off
off
Wired remote controller abnormal
off Indoor room temperature sensor error
Indoor heat exchanger temperature
off
sensor (middle) error
Indoor heat exchanger temperature
off
sensor (inlet) error
off Float switch operated
Outdoor discharge pipe temperature
off
sensor error
Outdoor heat exchanger temperature
off
sensor (outlet) error
off
Outdoor temperature sensor error
off
Heat sink thermistor (Inverter) error
off Compressor temperature sensor error
2 times 2-way valve temperature sensor error
3 times 3-way valve temperature sensor error
Outdoor heat exchanger temperature
4 times
sensor (middle) error
5 times Heat sink thermistor (P.F.C) error
off Indoor manual auto switch abnormal
off Power supply frequency detection error
off
IPM protection
off
CT error
off
Compressor location error
off Outdoor fan error
Connected indoor unit abnormal
off
Outdoor unit computer communication
off
error
2 times Inverter error
off
Indoor fan abnormal
off Discharge temperature error
Excessive high pressure protection
off
on cooling
4-way valve abnormal
off
Pressure switch abnormal,
off
Pressure sensor abnormal
off Compressor temperature error
off
Low pressure error
off Active filter abnormal
off PFC circuit error
off P.F.C PCB error
Refrigerant circuit address set-up error
off
off Master unit, Slave unit set-up error
off
Connected indoor number set-up error