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AIRSTAGE ASEH30KMTB
Fujitsu AIRSTAGE ASEH30KMTB User Manual
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AIR CONDITIONER
Wall mounted type
SERVICE MANUAL
INDOOR
ASEH30KMTB
ASEH36KMTB
OUTDOOR
AOEH30KMTB
AOEH36KMTB
SR_AS073ES_05
2023.12.18
2
Table of Contents
SERVICE MANUAL
1
1. GENERAL INFORMATION
5
1. Specifications
7
1-1. Indoor unit
7
1-2. Outdoor unit
9
2. Dimensions
10
2-1. Indoor unit
10
Models: ASEH30KMTB and ASEH36KMTB
10
2-2. Outdoor unit
12
Models: AOEH30KMTB and AOEH36KMTB
12
2. TECHNICAL DATA AND PARTS LIST
13
1. Precautions
15
2. Indoor unit parts list
16
2-1. Models: ASEH30KMTB and ASEH36KMTB
16
Exterior parts
16
Evaporator and control
18
3. Outdoor unit parts list
20
3-1. Models: AOEH30KMTB and AOEH36KMTB
20
Exterior parts and chassis
20
Compressor
22
4. Accessories
24
4-1. Indoor unit
24
Accessories
24
4-2. Outdoor unit
24
Models: AOEH30KMTB and AOEH36KMTB
24
5. Optional parts
25
5-1. Indoor unit
25
Controllers
25
Others
26
6. Refrigerant system diagrams
27
6-1. Models: AOEH30KMTB and AOEH36KMTB
27
7. Wiring diagrams
28
7-1. Indoor unit
28
Models: ASEH30KMTB and ASEH36KMTB
28
7-2. Outdoor unit
29
Models: AOEH30KMTB and AOEH36KMTB
29
8. PC board diagrams
30
8-1. Models: ASEH30KMTB and ASEH36KMTB
30
8-2. Models: AOEH30KMTB and AOEH36KMTB
31
3. TROUBLESHOOTING
33
1. Error code
37
1-1. How to check the error memory
37
1-2. How to erase the error memory
37
1-3. Error code table (Indoor unit and wired remote controller)
38
1-4. Error code table (Outdoor unit)
39
2. Troubleshooting with error code
41
2-1. E: 11. Serial communication error (Serial reverse transfer error) (Outdoor unit)
41
2-2. E: 11. Serial communication error (Serial forward transfer error) (Indoor unit)
43
2-3. E: 12. Wired remote controller communication error (Indoor unit)
45
2-4. E: 22. Indoor unit capacity error (Indoor unit)
46
2-5. E: 32. Indoor unit main PCB error (Indoor unit)
47
2-6. E: 35. MANUAL AUTO button error (Indoor unit)
48
2-7. E: 41. Room temperature sensor error (Indoor unit)
49
2-8. E: 42. Indoor unit heat exchanger sensor error (Indoor unit)
50
2-9. E: 44. Human sensor error
51
2-10. E: 51. Indoor unit fan motor error (Indoor unit)
52
2-11. E: 62. Outdoor unit main PCB error (Outdoor unit)
53
2-12. E: 63. Inverter error (Outdoor unit)
54
2-13. E: 64. PFC circuit error (Outdoor unit)
55
2-14. E: 65. Trip terminal L error (Outdoor unit)
56
2-15. E: 71. Discharge thermistor error (Outdoor unit)
57
2-16. E: 73. Heat exchanger (Middle/Outlet) temperature thermistor error (Outdoor unit)
58
2-17. E: 74. Outdoor temperature thermistor error (Outdoor unit)
59
2-18. E: 77. Heat sink thermistor error (Outdoor unit)
60
2-19. E: 84. Current sensor error (Outdoor unit)
61
2-20. E: 86. High pressure switch error (Outdoor unit)
62
2-21. E: 94. Trip detection (Outdoor unit)
63
2-22. E: 95. Compressor motor control error (Outdoor unit)
64
2-23. E: 97. Outdoor unit fan motor error (Outdoor unit)
65
2-24. E: 99. 4-way valve error (Outdoor unit)
67
2-25. E: A1. Discharge temperature error (Outdoor unit)
69
2-26. E: AC. Heat sink temperature error (Outdoor unit)
71
3. Troubleshooting without error code
72
3-1. Indoor unit—No power
72
3-2. Outdoor unit—No power
73
3-3. No operation (Power is on)
74
3-4. No cooling/No heating
75
3-5. Abnormal noise
77
3-6. Water leaking
78
4. Service parts information
79
4-1. Compressor
79
4-2. Inverter compressor
80
4-3. Outdoor unit Electronic Expansion Valve (EEV)
81
4-4. Indoor unit fan motor
83
4-5. Outdoor unit fan motor
84
4-6. Pressure switch
85
4-7. 4-way valve coil (solenoid coil)/4-way valve
86
5. Thermistor resistance values
87
5-1. Indoor unit
87
Room temperature thermistor
87
Heat exchanger temperature thermistor
87
5-2. Outdoor unit
88
Discharge temperature thermistor
88
Heat exchanger temperature thermistor
89
Heatsink thermistor
90
Outdoor temperature thermistor
90
Compressor temperature thermistor
91
4. CONTROL AND FUNCTIONS
93
1. Rotation number control of compressor
97
1-1. Cooling operation
97
1-2. Heating operation
98
1-3. Dry operation
98
1-4. Rotation number of compressor at normal start-up
99
1-5. Rotation number of compressor limitation by outdoor temperature
100
2. Auto changeover operation
102
3. Fan control
104
3-1. Indoor fan control
104
Fan speed
104
Fan operation
105
Cooling operation
105
Dry operation
105
Heating operation
105
Cool air prevention control (heating mode)
106
Moisture return prevention control (cooling and dry mode)
107
3-2. Outdoor fan control
108
Outdoor fan motor
108
Fan speed
108
4. Louver control
109
4-1. Horizontal louver control
109
4-2. Adjust the horizontal louver
109
4-3. Swing operation
110
5. Timer operation control
111
5-1. Wireless remote control
111
5-2. Wired remote control
113
6. Defrost operation control
116
6-1. Defrost operation in heating operation stopped
117
7. Various control
118
7-1. Auto restart
118
7-2. MANUAL AUTO operation
118
7-3. Forced cooling operation
119
7-4. 10 °C HEAT operation
119
7-5. ECONOMY operation
119
7-6. POWERFUL operation
120
7-7. Fresh air control
120
7-8. Compressor preheating
120
7-9. External electrical heater control
121
7-10. Electronic expansion valve control
121
7-11. Prevention to restart for 3 minutes (3 minutes st)
121
7-12. 4-way valve control
121
7-13. Human sensor for energy saving
122
7-14. Peak cut operation
122
7-15. Outdoor unit low noise operation
123
7-16. Unit status monitoring and the detected value indication
124
8. Various protections
127
8-1. Discharge gas temperature over-rise prevention control
127
8-2. Anti-freezing control (cooling and dry mode)
127
8-3. Current release control
128
Models: AOEH30KMTB and AOEH36KMTB
128
8-4. Compressor temperature protection
128
8-5. High pressure protection
128
8-6. Low outdoor temperature protection
128
8-7. High temperature and high pressure release control
129
5. FILED WORKING
131
1. Function settings (for indoor unit)
133
1-1. Function settings by using remote controller
133
Setting procedure by using wireless remote controller
133
Contents of function setting
134
1-2. Custom code setting for wireless remote controller
139
2. Function settings (for outdoor unit)
140
2-1. Control PCB and switch buttons location
140
Switch buttons and the functions
141
2-2. Local setting procedure
142
Low noise mode
142
Peak cut mode
143
3. External input and output (For indoor unit)
144
3-1. External input
145
Indoor unit
145
External Input and Output PCB
146
Input signal type
147
3-2. External output
148
Indoor unit
148
External Input and Output PCB
149
3-3. Setting of external input and output
150
3-4. Details of control input function
151
Operation/Stop mode 1
151
Forced stop
152
Operation/Stop mode 2
153
Forced thermostat off
154
3-5. Details of control output function
155
Operation status
155
Error status
155
Indoor unit fan operation status
156
Setpoint attainment status
156
4. External input and output (for outdoor unit)
157
4-1. External input
157
Low noise mode
157
Peak cut mode
158
4-2. External output
159
Error status output
159
Compressor status output
160
4
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Fujitsu AIRSTAGE ASEH30KMTB Specifications
General
Brand
Fujitsu
Model
AIRSTAGE ASEH30KMTB
Category
Air Conditioner
Language
English
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