Test Run Troubleshooting - Mitsubishi Electric PFAV-P250VM-E Manuel D'installation

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8.2. Test run troubleshooting

When operation stops abnormally, a four-digit inspection code appears in the display area of the remote controller. Please check the problem.
Inspection Code List
Inspection Code
0403
Serial communication error
1102
Outlet temperature error
1301
Low pressure error
1302
High pressure error
1500
Refrigerant overcharge error
4102
Open phase error
4106
Self power OFF error
4109
Fan error
4115
Power synchronous signal error
4121
Harmonic suppression equipment error
4220
Bus voltage error
4225
Bus voltage error
4230
Heat sink overheat protection (for compressor)
4240
Overload protection (for compressor)
4250
IPM/overcurrent circuit breaker error (for compressor)
4255
IPM/overcurrent circuit breaker error (for fan)
4260
Pre-start heat sink overheat protection
5101
5102
5103
Temperature sensor error
5104
5105
5106
5107
5110
5201
High pressure sensor error
5301
Current sensor/circuit error (for compressor)
6600
Unit address duplicate settings
6602
Send error (transmission processor hardware error)
6603
Send error (transmission line busy)
6606
Send/receive error (communication error with the transmission processor)
6607
Send/receive error (No ACK error)
6608
No response error
6831
MA communication reception error (no reception)
6832
MA communication send error (synchronization recovery error)
6833
MA communication send error (hardware error)
6834
MA communication reception error (start bit detection error)
7100
Total capacity error
7101
Capacity code error
7102
Connected number of units error
7105
Address setting error
7110
Connection information unset error
7111
Remote controller sensor error
7113
Function setting error
7117
Model unset error
7130
Unit combination error
22
Error Details
Room temperature or supply air temperature (TH21)
Indoor unit inlet temperature (TH4)
Pipe sensor error (TH22)
Sub-cool coil bypass outlet temperature sensor error (TH2)
Gas side pipe temperature sensor error (TH23)
Pipe temperature sensor error (TH3)
Outside air temperature sensor error
Outlet temperature sensor error
Accumulator inlet temperature sensor error (TH5)
Sub-cool heat exchanger liquid outlet sensor error (TH6)
Outside air temperature sensor error (TH7)
Heat sink temperature sensor error (THHS)
Problem Location
Outdoor
Indoor
Remote Controller

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