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Sensira Series
Daikin Sensira Series User Manual
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Service manual
Split Sensira R32
FTXF20~71A
FTXF20~25B
FTXF20~42C
ATXF20~71A
ATXF20~42C
RXF20~71A
RXF20~60B
RXF20~42C
ARXF20~71A
ARXF20~42C
2
Table of Contents
Default Chapter
4
Table of Contents
4
1 Troubleshooting
6
To Display the Error Code on the User Interface
6
To Reset the Error Code Via Remote Controller
6
To Reset the Error Code Via Outdoor Unit
6
To Perform a Test Run
6
To Perform a Test Run in Winter Season
7
Error Based Troubleshooting
7
A1-00 - PCB Abnormality
7
A5-00 - Outdoor Unit: High Pressure Peak Cut / Freeze Protection Problem
8
A6-00 - Indoor Unit Fan Motor Abnormality
9
C4-00 - Heat Exchanger Temperature Sensor Problem
9
C9-00 - Room Thermistor Abnormality
10
E1-00 - Outdoor Unit: PCB Defect
10
E3-00 - Outdoor Unit: Actuation of High Pressure Switch
11
E5-00 - Outdoor Unit: Overheat of Inverter Compressor Motor
12
E6-00 - Outdoor Unit: Compressor Startup Defect
13
E7-00 - Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
14
E8-00 - Outdoor Unit: Power Input Overvoltage
14
Outdoor Unit: Cool/Heat Switchover Problem
15
F3-00 - Outdoor Unit: Malfunction of Discharge Pipe Temperature
16
F6-00 - Outdoor Unit: Abnormal High Pressure in Cooling
17
F8-00 - System Shutdown Due to Compressor Internal Temperature Abnormality
18
H0-00 - Outdoor Unit: Voltage/Current Sensor Problem
18
H3-00 - Outdoor Unit: Malfunction of High Pressure Switch
19
H6-00 - Outdoor Unit: Malfunction of Position Detection Sensor
20
H8-00 - Outdoor Unit: Malfunction of Compressor Input System
21
H9-00 - Outdoor Unit: Malfunction of Outdoor Air Thermistor
21
J3-00 - Outdoor Unit: Malfunction of Discharge Pipe Thermistor
22
J6-00 - Outdoor Unit: Malfunction of Heat Exchanger Thermistor
22
L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem
22
L4-00 - Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature Rise
23
L5-00 - Outdoor Unit: Inverter Instantaneous Overcurrent
24
P4-00 - Outdoor Unit: Malfunction of Radiating Fin Temperature Sensor
25
U0-00 - Outdoor Unit: Shortage of Refrigerant
25
U2-00 - Outdoor Unit: Defect of Power Supply Voltage
26
U4-00 - Indoor/Outdoor Unit Communication Problem
27
Indoor Unit, Outdoor Unit Mismatching Problem
28
Symptom Based Troubleshooting
29
Operation Does Not Start
29
Operation Sometimes Stops
29
Operation Starts but the Unit Does Not Cool/Heat
30
Operating Noise and Vibrations
31
Abnormal High Pressure
32
Abnormal Low Pressure
33
Indoor Fan Starts Operating but the Compressor Does Not Operate
34
Operation Starts and the Unit Stops Immediately
35
Operation Stops, Unit Cannot Start for a While
35
Unit Discharges White Mist
36
Swing Flap Does Not Operate
36
2 Components
37
4-Way Valve
37
Checking Procedures
37
Repair Procedures
41
Compressor
44
Checking Procedures
44
Repair Procedures
49
Expansion Valve
53
Checking Procedures
53
Repair Procedures
56
High Pressure Switch
61
Checking Procedures
61
Repair Procedures
63
Indoor Unit Fan Motor
64
Checking Procedures
64
Repair Procedures
65
Indoor Unit Main PCB
67
Checking Procedures
67
Repair Procedures
69
Inverter PCB
72
Checking Procedures
72
Repair Procedures
74
Main PCB
74
Class 20~42 Units
74
Class 50~71 Units
84
Outdoor Unit Fan Motor
92
Class 20~42 Units
92
Class 50~71 Units
96
Plate Work
101
Outdoor Unit
101
Indoor Unit
107
Reactor
111
Checking Procedures
111
Repair Procedures
114
Swing Flap Motor
115
Checking Procedures
115
Repair Procedures
115
Thermistors
117
Refrigerant Side Thermistors
117
Other Thermistors
124
3 Third Party Components
127
Electrical Circuit
127
Checking Procedures
127
Repair Procedures
128
Refrigerant Circuit
129
Checking Procedures
129
Repair Procedures
133
External Factors
136
Checking Procedures
136
4 Maintenance
138
To Clean the Outdoor Unit Heat Exchanger
138
To Clean the Indoor Unit Heat Exchanger
138
To Clean the Indoor Unit Heat Exchanger in Extreme Condition
138
To Clean the Air Filters
139
5 Technical Data
141
Detailed Information Setting Mode
141
Detailed Information Setting Mode: Indoor Unit
141
Detailed Information Setting Mode: Outdoor Unit
141
Detailed Information Setting Mode: Remote Controller
141
Wiring Diagram
142
Wiring Diagram: Indoor Unit
142
Wiring Diagram: Outdoor Unit
145
Piping Diagram
151
Piping Diagram: Indoor Unit
151
Piping Diagram: Outdoor Unit
155
Component Overview
161
Component Overview: Indoor Unit
161
Component Overview: Outdoor Unit
162
Field Information Report
163
Service Tools
166
Field Settings
167
Field Settings: Indoor Unit
167
Field Settings: Outdoor Unit
168
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Daikin Sensira Series Specifications
General
Type
Split System
Refrigerant
R32
Compressor Type
Rotary
Air Filter
Washable
Power Supply
220-240V, 50Hz
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