Daikin REYQ72 Serveice Manual page 134

SiUS39-602
Malfunction Operation
code
Indoor A0
Unit
A1
A3
A6
A7
A9
AF
AH
AJ
C4
C5
C9
CJ
Outdoor E1
Unit
E3
E4
E5
E6
E7
E9
F3
F6
H3
H4
H7
H9
J2
J3
J4
J5
J6
J7
J8
J9
JA
JC
L0
L4
L5
L6
L8
L9
Troubleshooting
Inspection Unit No.
lamp display
9 9 9
9 9 9
9 9 9
9 9 9
8 7 9
9 9 9
8 7 9
8 7 9
9 9 9
9 9 9
9 9 9
9 9 9
8 8 8
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
8 7 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
9 9 9
Troubleshooting by Remote Controller
Malfunction contents
Error of external protection device
2
PC board defect, E PROM defect
Malfunction of drain level control system (S1L)
Fan motor (MIF) lock, overload
Malfunction of swing flap motor (MA)
Malfunction of moving part of electronic expansion valve (20E)
Drain level above limit
Malfunction of air filter maintenance
Malfunction of capacity setting
Malfunction of thermistor (R2T) for heat exchange
(loose connection, disconnection, short circuit, failure)
Malfunction of thermistor (R31T, R32T) for gas pipes
(loose connection, disconnection, short circuit, failure)
Malfunction of thermistor (R1T) for air inlet (loose
connection, disconnection, short circuit, failure)
Malfunction of thermostat sensor in remote controller
PC board defect
Actuation of high pressure switch
Actuation of low pressure sensor
Compressor motor lock (INV compressor)
Standard compressor lock or over current
Malfunction of outdoor unit fan motor
Malfunction of moving part of electronic expansion
valve (Y1E~3E)
Abnormal discharge pipe temperature
Refrigerant overcharged
Malfunction of High pressure switch
Actuation of Low pressure switch
Abnormal outdoor fan motor signal
Malfunction of thermistor (R1T) for outdoor air (loose
connection, disconnection, short circuit, failure)
Current sensor malfunction
Malfunction of discharge pipe thermistor (R31~32T)
(loose connection, disconnection, short circuit, failure)
Malfunction of heat exchanger gas pipe thermistor (R81, 82T)
Malfunction of thermistor (R2T) for suction pipe (loose
connection, disconnection, short circuit, failure)
Malfunction of thermistor (R4T) for heat exchanger
(loose connection, disconnection, short circuit, failure)
Malfunction of receiver outlet liquid pipe thermistor (R6T)
Malfunction of thermistor (R7T) for oil equalizing pipe.
(loose connection, disconnection, short circuit, failure)
Malfunction of receiver gas pipe thermistor (R5T)
Malfunction of discharge pipe pressure sensor
Malfunction of suction pipe pressure sensor
Inverter system error
Malfunction of inverter radiating fin temperature rise
Inverter compressor motor grounding, short circuit
Compressor motor coil grounding on short circuit
Inverter current abnormal
Inverter start up error
: ON : OFF : Blink
8 7 9
Page
Referred
127
128
129
131
132
134
136
—
137
138
139
140
141
142
143
144
145
146
147
149
151
152
—
—
153
154
155
156
157
158
159
160
161
162
163
164
—
165
166
—
167
168
123