Daikin R35DV1 - Troubleshooting; Error Codes and Description

Troubleshooting Si01-501
106 Service Diagnosis
4. Troubleshooting
4.1 Error Codes and Description
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: Displayed only when system-down occurs.
Code Indication Description
Reference
Page
System
00
Normal —
U0
Insufficient gas 133
U2
Low-voltage detection 135
U4
Signal transmission error (between indoor and outdoor units) 113
Indoor
Unit
A1
Indoor unit PCB abnormality 107
A5
Freeze-up protection control 108
A6
Fan motor or related abnormality
AC motor 109
DC motor 110
C4
Heat exchanger thermistor abnormality 112
C9
Room temperature thermistor abnormality 112
Outdoor
Unit
E5
OL activation (compressor overload) 114
E6
Compressor lock 115
E7
DC fan lock 116
E8
Input over current detection 117
F3
Discharge pipe temperature control 119
F6
High pressure control in cooling 120
H6
Position sensor abnormality 122
H8
CT or related abnormality 123
H9
Outdoor air thermistor or related abnormality 125
J3
Discharge pipe thermistor or related abnormality 125
J6
Heat exchanger thermistor or related abnormality 125
L3
Electrical box temperature rise 127
L4
Radiation fin temperature rise 129
L5
Output over current detection 131
P4
Radiation fin thermistor or related abnormality 125