How To Cope With Test Run Trouble - Mitsubishi Electric CITY MULTI PQRY-P250 Installationshandbuch

10.3. How to cope with test run trouble

1 A 4-digit check code is displayed on remote controller display panel if unit is stopped due to a trouble. Check to see causes of that
trouble.
1. Indoor unit
Check code
2500 Water leakage trouble
2502 Drain pump trouble
2503 Drain sensor trouble, Float switch on
5101 Air inlet sensor trouble
5102 Piping sensor trouble
5103 Piping sensor trouble in the gas side
6600 Duplicated unit address setting
6602 Transmission error
(Transmission processor hardware error)
2. Heat source unit
Check code
0403 Serial transmission malfunction
1102 Discharge temperature trouble
1111 Low pressure saturated temperature trouble (Detected
by saturated temperature sensor)
1112 Low pressure saturated temperature trouble
(Detected by liquid level detecting temperature sensor)
1113 Low pressure saturated temperature trouble
(Detected by liquid level detecting temperature sensor)
1301 Low pressure trouble
1302 High pressure trouble
1500 Excessive refrigerant replenishment
1501 Lacked refrigerant trouble
2000 Interlock operation
2134 Water temperature trouble
2135 Water heat exchange frozen
4103 Reverse phase
4115 Power supply simultaneous signal malfunction
4200 VDC/IDC detection circuit malfunction
4210 Overcurrent interruption
4220 Inverter bus line voltage low
4230 Overheat protection of radiator panel
4240 Overcurrent protection
4260 Cooling fan malfunction
5101 Discharge temperature sensor trouble (TH1)
5102 Low pressure saturated temperature trouble (TH2)
3. BC controller
Check code
1368 High pressure trouble
(Detected by pressure sensor in the liquid side)
1369 High pressure trouble
(Detected by pressure sensor in the gas side)
1370 High pressure trouble
(Detected by intermediate pressure sensor)
2503 Float switch on
5111 Liquid inlet temperature sensor trouble (TH11)
5112 Bypass outlet temperature sensor trouble (TH12)
5113 Outlet temperature sensor trouble of liquid surface de-
tecting heat exchanger (TH13)
5114 Inlet temperature sensor trouble of liquid surface detect-
ing heat exchanger (TH14)
5115 Bypass inlet temperature sensor trouble (TH15)
28
Trouble
Trouble
Trouble
Check code
6603 Transmission error (Transmission route BUSY)
6606 Transmission and reception error
(Communication trouble with transmission processor)
6607 Transmission and reception error (No ACK error)
6608 Transmission and reception error (No responsive frame
error)
7101 Capacity code error
7111 Remote controller sensor trouble
Check code
5103 Liquid surface detecting temperature sensor trouble
(TH3)
5104 Liquid surface detecting temperature sensor trouble
(TH4)
5106 Water temperature sensor trouble (TH6)
5107 (Inverter cooling heat exchanger outlet)
5110 Inverter cooling plate temperature sensor abnormal (THHS)
5112 Compressor shell temperature sensor abnormal (TH10)
5201 High-pressure sensor (HPS) malfunction
5301 IDC sensor circuit malfunction
6600 Duplicated unit address setting
6602 Transmission error (Transmission processor hardware
error)
6603 Transmission error (Transmission route BUSY)
6606 Transmission and reception error
(Communication trouble with transmission processor)
6607 Transmission and reception error (No ACK error)
6608 Transmission and reception error (No responsive frame
error)
7100 Total capacity error
7101 Capacity code error
7102 Connecting unit number error
7105 Address set error
7109 Incorrect connection
7130 Incorrect setup
Check code
5116 Intermediate section temperature sensor trouble
5201 Pressure sensor trouble in the liquid side (63HS1)
5203 Intermediate pressure sensor trouble (63HS3)
6101 Unreadable response receiving error
6600 Duplicated unit address setting
6602 Transmission error (Transmission processor hardware
trouble)
6603 Transmission error (Transmission route BUSY)
6606 Transmission and reception error
(Communication trouble with Transmission processor)
6607 Transmission and reception error (No ACK error)
6608 Transmission and reception error (No responsive flame
error)
7107 Connection No. setting error
Trouble
Trouble
Trouble