Preliminary Error Code Lists (Outdoor Unit Only) - Mitsubishi Electric CITY MULTI PUHY-P200M-B1-BM Service Handbook

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[2] Preliminary error Code Lists (Outdoor unit only)

Preliminary error code
1202
1205
1211
1212
1213
1214
1216
1217
1219
1221
1243
1402
1600
1605
1607
4171
4300
4320
4330
4340
4350
4360
Abnormal discharge air temp. or discharge air temp. sensor preliminary failure (TH1)
Piping temp. sensor preliminary failure (TH5)
Low pressure saturation temp. or low pressure saturation temp. sensor preliminary failure (TH2)
Low pressure saturation temp. or temp. sensor on liquid level detection preliminary failure (TH4)
Low pressure saturation temp. or temp. sensor under liquid level detection preliminary failure (TH3)
THH sensor/circuit preliminary failure
Liquid outlet temp. sensor at Sub-Cool coil preliminary failure (TH7)
Bypass outlet temp. sensor at Sub-Cool coil preliminary failure (TH8)
Liquid temp. at composition detection or liquid temp. sensor at composition detection preliminary failure
OA temp. sensor preliminary failure (TH6)
Oil temp. at compressor or oil temp. sensor at compressor preliminary failure
High pressure error or pressure sensor preliminary failure
Overfilling refrigerant preliminary error
Preliminary vacuum operation protection
Preliminary CS circuit choking malfunction
Harmonics action device preliminary error
Idc sensor/circuit preliminary failure
Vdc sensor/circuit preliminary failure
Serial communication preliminary error
Preliminary bus voltage drop abnormality
Preliminary heat sink overheat malfunction
Overload protection
Preliminary IPM/Bus voltage abnormality
Cooling fan preliminary failure
Contents of preliminary error
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