Mitsubishi Electric PQHY-P72ZLMU-A Service Handbook page 249

[ IX Troubleshooting ]
Error
Prelimi-
(prelim-
Error nary
inary)
Code error
detail
code
code
[0]
[101]
[104]
4250 4350
[105]
[106]
[107]
4260 - -
5101 1202 -
5102 1217 -
5103 1205 00
5104 1202 -
5105 1204 -
5106 1216 -
5107 1221 -
5108 1218 -
5112 1215 -
5110 1214 [0]
01
HWE15150
Error code definition
Backup operation
IPM error
Short-circuited IPM/Ground fault
Overcurrent error due to short-circuited motor
Instantaneous overcurrent
Overcurrent
Heatsink overheat protection at startup
Return air temperature
(TH21)
Temperature sensor
fault
OA processing unit inlet
temperature (TH4)
Indoor unit pipe tempera-
ture (TH22)
Temperature sensor OA processing unit pipe
fault temperature (TH2)
HIC bypass circuit outlet
temperature (TH2)
Indoor unit gas-side pipe
temperature (TH23)
OA processing unit gas-
Temperature sensor
side pipe temperature
fault
(TH3)
Pipe temperature at heat
exchanger outlet (TH3)
OA processing unit intake
air temperature (TH1)
Temperature sensor Outside temperature
fault (TH24)
Heat source unit discharge
temperature (TH4)
Temperature sensor Accumulator inlet tempera-
fault ture (TH5)
Temperature sensor HIC circuit outlet tempera-
fault ture (TH6)
Temperature sensor
Water inlet pipe (TH7)
fault
Temperature sensor
Water outlet pipe (TH8)
fault
Temperature sensor Component cooler heat ex-
fault changer outlet (THINV)
Backup operation
Temperature sensor Heatsink temperature
fault (THHS)
- 240 -
Searched unit
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Detectable
only by the All-
O
Fresh type in-
door units
O
O
O
O
O
O
O
O
Notes
GB