Error Display; Wired Remote Controller Display (Option) - Fujitsu ASU 9RLF Service Instructions Manual

2. TROUBLESHOOTING

2-1 ERROR DISPLAY

2-1-1 WIRED REMOTE CONTROLLER DISPLAY (OPTION)

1. SELF - DIAGNOSIS
When "Er" in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed service personnel.
Unit number (usually 0)
SU MO TU WE TH FR SA
ex. Self-diagnosis check
Error code
Serial communication error
Remote controller communication error
Indoor unit main PCB error
Manual auto switch error
Room temperature sensor error
Indoor unit Heat Ex. sensor error
Indoor unit fan motor error
Outdoor unit main PCB error
PFC circuit error
IPM error
Discharge thermistor error
Outdoor unit Heat Ex. sensor error
Outdoor thermistor error
Current sensor error
Trip detection
Compressor motor control error
Outdoor unit fan motor error
4-way valve error
Discharge temperature error
Error code
Error contents
02-01
Trouble
shooting
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