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Troubleshooting
DAMA-SM-21-003
54
Service Diagnosis
4. Troubleshooting
4.1 Error Codes and Description
Displayed only when the system is shut down.
Error
Codes
Description
Reference Page
System
00
Normal condition
-
U2
Low-voltage detection or over-voltage detection
61
U4
Signal transmission error (between indoor unit and outdoor unit)
62
UA
Installation error (between indoor unit and outdoor unit)
64
Indoor Unit
A1
Indoor unit PCB abnormality
56
A5
Freeze-up protection control
57
A6
Indoor fan motor (DC motor) or related abnormality
58
C4
Indoor heat exchanger thermistor or related abnormality
59
C9
Room temperature thermistor or related abnormality
60
Outdoor Unit
E1
Outdoor unit PCB abnormality
65
E
5
OL activation (compressor overload)
66
E
6
Compressor lock
68
E
7
DC fan lock
69
E8
Input overcurrent detection
70
F3
Discharge pipe temperature control
71
F6
High pressure control in cooling
72
EA
Four way valve abnormality
82
H0
Compressor sensor system abnormality
74
H6
Position sensor abnormality
75
H9
Outdoor temperature thermistor or related abnormality
76
J3
Discharge pipe thermistor or related abnormality
76
J6
Outdoor heat exchanger thermistor or related abnormality
76
L3
Electrical box temperature rise
78
L4
Radiation fin temperature rise
79
L5
Output overcurrent detection
80
P4
Radiation fin thermistor or related abnormality
73
DAMA-SM-21-003 -Inverter Multi Split-CTX Series.book Page 54 Wednesday, September 1, 2021 5:44 PM
Summary of Contents for 2MX18AXVJU
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