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

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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