Error Code And Preliminary Error Code Lists - Mitsubishi Electric PUHY-P250YNW-A Service Handbook

[7-1 Error Code and Preliminary Error Code Lists ]

7-1

Error Code and Preliminary Error Code Lists

7 Troubleshooting Using Error Codes
Error
Prelimi-
(prelim-
Error nary
inary)
Code error
detail
code
code
4300
0403 4305
4306
(Note)
1102 1202
1301 -
1302 1402
1500 1600
- 1605
2503 -
3511 3611
3512 3612
4102 4152
4106 -
4109 -
4121 4171 −
[0]
[108]
[109]
[110]
4220 4320
4225 4325
[111]
4226 4326
(Note) (Note)
[112]
[123]
[129]
[131]
4230 4330
4235 4335 [125]
4236 4336
4230 4330 [126]
4240
4245 4340
4246
BS_07_C
Error code definition
1
5
Serial communication error/Panel communication error
6
- Discharge temperature fault
- Low pressure fault
- High pressure fault
- Refrigerant overcharge
- Preliminary suction pressure fault
- Float switch trip
- Refrigerant overcooling
- Locked cooling fan
- Open phase
- Transmission power supply fault
- Fan error
Function setting error
Backup operation
Abnormal bus voltage drop (Software detection)
Abnormal bus voltage rise (Software detection)
BUS voltage error (Hardware detection)
Logic error
Logic error
Voltage boost control error
Control power-supply fault
Low bus voltage at startup
Heatsink overheat protection
DCL temperature fault
- Overload protection
Searched unit
Notes
O O (page 5)
O (page 6)
O (page 7)
O (page 8)
O (page 9)
O
O (page 10)
O (page 11)
O (page 12)
O (page 13)
O (page 14)
O (page 14)
O (page 15)
O
O (page 16)
O (page 17)
O (page 17)
O (page 18)
O (page 18)
O (page 18)
O (page 19)
O (page 19)
O (page 20)
O (page 21)
O (page 22)
chapter 7 -
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