List Of Malfunction Code - Daikin RTSQ20PY1 Service Manual

Troubleshooting by Remote Controller
3.8

List of Malfunction Code

Malfunction
code
Indoor Unit A0
A1
A3
A6
A7
A9
AF
AH
AJ
C4
C5
C9
CA
CJ
Outdoor Unit E1
Function
E3
Unit
E4
E5
E6
E7
E9
F3
F6
H7
H9
J2
J3
J4
J5
J6
J7
J8
J9
JA
JC
L1
L4
L5
L8
L9
The system operates for malfunction codes indicated in black squares, however, be sure to check and repair.
213
Operation Inspection Unit No.
lamp display
l l
l l
l l
l l
k h
l l
k h
k h
l l
l l
l l
l l
l l
k k
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
l l
Malfunction contents
l
Error of external protection device
l
PCB defect
l
Malfunction of drain level control system
l
Fan motor (M1F) lock, overload
l
Malfunction of swing flap motor
l
Malfunction of moving part of electronic expansion
valve / Dust clogging
l
Drain level about limit
l
Malfunction of air filter maintenance
l
Malfunction of capacity setting
l
Malfunction of thermistor for heat exchange (loose
connection, disconnection, short circuit, failure)
l
Malfunction of thermistor for gas pipes (loose
connection, disconnection, short circuit, failure)
l
Malfunction of thermistor for air inlet (loose
connection, disconnection, short circuit, failure)
l
Malfunction of thermistor for discharge air (loose
connection, disconnection, short circuit, failure)
k
Malfunction of room temperature thermistor in
remote controller
l
PCB defect
l
Actuation of high pressure switch
l
Actuation of low pressure sensor
l
Compressor motor lock
l
Standard compressor lock or overcurrent
l
Malfunction of outdoor unit fan motor
l
Malfunction of electronic expansion valve coil
l
Abnormal discharge pipe temperature
l
Refrigerant overcharged
l
Abnormal outdoor fan motor signal
l
Malfunction of thermistor for outdoor air (loose
connection, disconnection, short circuit, failure)
l
Current sensor malfunction
l
Malfunction of discharge pipe thermistor (loose
connection, disconnection, short circuit, failure)
l
Malfunction of temperature sensor for heat
exchanger gas
l
Malfunction of thermistor for suction pipe (loose
connection, disconnection, short circuit, failure)
l
Malfunction of thermistor for heat exchanger (loose
connection, disconnection, short circuit, failure)
l
Malfunction of receiver outlet liquid pipe thermistor
l
Malfunction of liquid pipe thermistor 2
l
Malfunction of subcooling heat exchanger gas pipe
thermistor
l
Malfunction of high pressure sensor
l
Malfunction of low pressure sensor
l
Malfunction of inverter PCB
l
Malfunction of inverter radiation fin temperature rise
l
DC output overcurrent of inverter compressor
l
Inverter current abnormal
l
Inverter start up error
SiBE31-801_C
k: ON h: OFF l: Blink
Page
Referred
220
221
222
224
226
227
230
232
234
236
—
237
238
239
240
241
242
243
244
246
248
250
251
254
256
258
259
261
262
263
264
265
266
267
268
269
270
272
274
276
278
280
282
Troubleshooting