Malfunction Of Capacity Determination Device; Malfunction Of Thermistor (R2T) For Heat Exchanger - Daikin RXYQ72 Serivce Manual

Inverter Over-Ripple Protection .............................. 168
Inverter P.C.Board ................................................. 242
Inverter Protection Control ....................................... 52
Inverter Start up Error ............................................ 165
J
J2 ........................................................................... 151
J3 ........................................................................... 152
J5 ........................................................................... 153
J6 ........................................................................... 154
J7 ........................................................................... 155
J8 ........................................................................... 156
J9 ........................................................................... 157
JA ........................................................................... 158
JC ........................................................................... 160
L
L4 ........................................................................... 161
L5 ........................................................................... 162
L8 ........................................................................... 163
L9 ........................................................................... 165
LC .......................................................................... 166
Low Noise Operation and Demand Operation ......... 94
Low Pressure Drop Due to Refrigerant Shortage or
Electronic Expansion Valve Failure ................ 172
Low Pressure Protection Control ............................. 50
M
M1 .................................................................. 194
M8 .................................................................. 195
MA .................................................................. 197
MC ................................................................. 199
Malfunction code indication by outdoor
unit PCB .......................................................... 118

Malfunction of Capacity Determination Device ...... 130

Malfunction of Discharge Pipe Pressure Sensor .... 158
Malfunction of Discharge Pipe Thermistor
(R31~33T) ....................................................... 152
Malfunction of Drain Level Control
System (S1L) .................................................. 122
Malfunction of Inverter Radiating Fin
Temperature Rise ........................................... 161
Malfunction of Inverter Radiating Fin
Temperature Rise Sensor ............................... 170
Malfunction of Moving Part of Electronic Expansion
Valve (20E) ..................................................... 127
Malfunction of Moving Part of Electronic Expansion
Valve (Y1E, Y2E) ............................................ 144
Malfunction of Outdoor Unit Fan Motor .................. 142
Malfunction of Receiver Outlet Liquid Pipe
Thermistor (R6T) ............................................. 155
Malfunction of Sub-Cooling Gas Pipe
Thermistor (R5T) ............................................. 157
Malfunction of Suction Pipe Pressure Sensor ........ 160
Malfunction of Swing Flap Motor (MA) ................... 125
ii
Malfunction of System, Refrigerant System Address
Undefined ........................................................192
Malfunction of Thermistor (R1T) for Outdoor Air ....150
Malfunction of Thermistor (R1T) for Suction Air .....133
Malfunction of Thermistor (R2T)
for Heat Exchanger ..........................................131
Malfunction of Thermistor (R2T)
for Suction Pipe ...............................................153
Malfunction of Thermistor (R3T) for Gas Pipes ......132
Malfunction of Thermistor (R4T) for
Outdoor Unit Heat Exchanger Deicer ..............154
Malfunction of Thermostat Sensor in
Remote Controller ...........................................134
Malfunction of Transmission Between Central Remote
Controller and Indoor Unit ...............................200
Malfunction of Transmission Between Centralized
Controller and Indoor Unit ...............................189
Malfunction of Transmission Between
Indoor Units and Outdoor Units .......................178
Malfunction of Transmission Between Indoor Units and
Outdoor Units in the Same System .................184
Malfunction of Transmission Between Inverter and
Control PC Board ............................................166
Malfunction of Transmission Between Main and Sub
Remote Controllers ..........................................183
Malfunction of Transmission Between Optional
Controllers for Centralized Control ......... 195
Malfunction of Transmission Between
,
202 Outdoor Units ..................................................181
,
203 Malfunction of Transmission Between Remote
,
205 Controller and Indoor Unit ...............................180
,
207
O
Oil Return Operation .................................................41
Operation Lamp Blinks ...........................................208
Operation Mode ........................................................32
Operation When Power is Turned On ......................67
Option List ..............................................................235
Other Control ............................................................54
Outdoor Unit PC Board Layout .................................68
Outdoor Unit Rotation ...............................................54
P
P1 ...........................................................................168
P4 ...........................................................................170
PC Board Defect ............................ 121
PJ ...........................................................................171
Power Supply Insufficient or Instantaneous
Failure ..............................................................175
Power Transistor IGBT (On Inverter PC Board) .....243
Precautions for New Refrigerant (R-410A) .............246
Pressure Equalization prior to Startup ......................48
Pressure Sensor .....................................................241
Protection Control .....................................................49
Pump-down Residual Operation ...............................44
SiUS39-601
,
203
, , ,
135 194 202
Index