2. TROUBLESHOOTING
02-01
2-1 ERROR DISPLAY
When "Er" in Temperature Display is displayed, inspection of the air conditioning system is necessary.
Please consult authoilzed service personnel.
Error code
Error contents
Trouble
shooting
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
IPM error
Compressor motor control error
Discharge thermistor error
2-1-1 WIRED REMOTE CONTROLLER DISPLAY (OPTION)
Outdoor thermistor error
Serial communication error
Outdoor unit Heat Ex. sensor error
Trip detection
1. SELF - DIAGNOSIS
1
2
5
6
7
9
10
11
12
13
15
16
17
18
19
Outdoor unit fan motor error
4-way valve error
Discharge temperature error
3
4
SU
MO
TU
WE
TH FR
SA
Unit number (usually 0)
Error code
ex. Self-diagnosis check
PFC circuit error
8
Current sensor error
14
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