Error Code Lists - Mitsubishi Electric PU(H)Y-P250YGM-A Service Handbook

IX Troubleshooting

[1] Error code Lists

Error
Prelimi-
(prelim-
Error nary
inary)
Code error
detail
code
code
4300
0403
4305
(Note)
1102 1202
1301 -
1302 1402
1500 1600
- 1605
2503 -
4103 -
4108 4158
4109 -
4115 -
[108]
4220 4320
[109]
4225 4325
[110]
(Note) (Note)
[111]
4230 4330
4235 4325
(Note) (Note)
4240 4340
4245 4345
(Note) (Note)
[101]
[102]
[103]
4250 4350
[104]
4255 4355
(Note) (Note)
[105]
[106]
[107]
436X
4260
(No er-
4265
ror his-
(Note)
tory)
Error code definition
01
05 Serial communication error
Abnormal discharge air temperature,
-
Abnormal discharge temperature sensor
- Abnormal low pressure
- Abnormal high pressure
Excessive or insufficient refrigerant
-
(Overflow of the accumulator)
- Preliminary suction pressure abnormality
Drain pump failure
-
Float switch trip
- Reverse phase/open phase
- Overcurrent protection (51C2) (No.2 Comp)
- Abnormal fan
Power supply sync signal abnormality
-
Frequency abnormality
Bus voltage drop (S/W detection)
Bus voltage rise (S/W detection)
Bus voltage abnormality (H/W detection)
Logic error
- Heatsink overheat protection (THHS abnormality)
- Overload protection
IPM error
ACCT overcurrent breaker trip (H/W detection)
DCCT overcurrent breaker trip (H/W detection)
IPM short/grounding abnormality
Overcurrent error due to short-circuited motor
Instantaneous overcurrent breaker trip
(S/W detection)
Effective overcurrent breaker trip (S/W detection)
- Cooling fan abnormality
- 111 -
[ IX Troubleshooting ]
Searched unit
Notes
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O