Check Code Lists - Mitsubishi Electric City Multi PQHY-P72 Service Handbook

IX Troubleshooting

[1] Check Code Lists

Error
Prelimi-
(prelim-
Error nary
inary)
Code error
detail
code
code
0403 4300 01
0900 - -
1102 1202 -
1301 - -
1302 1402 -
1500 1600 -
- 1605 -
2000 2100 -
2134 2234 -
2135 2235 -
2500 - -
2502 - -
2503 - -
2600 - -
2601 - -
4103 - -
4115 - -
4116 - -
[108]
[109]
4220 4320
[110]
[111]
4230 4330 -
4240 4340 -
[101]
[102]
[103]
[104]
4250 4350
[105]
[106]
[107]
4360
(No er-
4260
ror his-
tory)
Error code definition
Serial communication error
Test run mode
Abnormal discharge air temperature
Abnormal low pressure
Abnormal high pressure
Excessive or insufficient refrigerant
Preliminary suction pressure abnormality
Pump interlock trouble
Abnormal water temperature
Water heat exchanger freezing
Water leakage
Drain pump failure/Float switch trip
Drain pump failure/Float switch trip
Water leakage
Water supply cut-off
Reverse phase/open phase
Power supply sync signal abnormality
RPM error/Motor malfunction
Bus voltage drop
(S/W detection)
Bus voltage rise
(S/W detection)
Bus voltage abnormality
(H/W detection)
Logic error
Heatsink overheat protection
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 de-
tection)
Effective overcurrent breaker trip (S/W detection)
Cooling fan abnormality
- 179 -
[ 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
O
O
O
O
O
O
O
O
O
O