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5105 Piping temperature sensor error (TH5)
5106 Outdoor temperature sensor error (TH6)
5107 Subcool coil liquid outlet temperature sensor error (TH7)
5108 Subcool coil bypass outlet temperature sensor error
(TH8)
5109 Sub cool coil bypass inlet temperature sensor error (TH9)
5110
Inverter cooling plate temperature sensor error (THHS)
5112 Gas pipe sensor error (TH10a)
5113 Gas pipe sensor error (TH10b)
5201 High-pressure sensor (HPS) error
5301 IDC sensor circuit error
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
0403 Serial transmission malfunction
1102 Discharge temperature abnormality
1111 Low pressure saturated temperature abnormality
(Detected by saturated temperature sensor)
1112 Low pressure saturated temperature abnormality
(Detected by liquid level detecting temperature sensor)
1113 Low pressure saturated temperature abnormality
(Detected by liquid level detecting temperature sensor)
1301 Low pressure abnormality
1302 High pressure abnormality
1500 Excessive refrigerant replenishment
1501 Lacked refrigerant abnormality
1505 Low pressure abnormality
4103 Reverse phase
4108 Overload protection (Comp overcurrent)
4115 Power supply simultaneous signal abnormality
4116 Fan speed abnormality (motor abnormality)
4200 VDC detection circuit error
4210 Overcurrent interruption
4220 Inverter bus line voltage low
4230 Overheat protection of radiator panel
4240 Overcurrent protection
4260 Cooling fan abnormality
5101 Discharge temperature sensor error (TH1)
5102 Low pressure saturated temperature error (TH2)
5103 Liquid surface detecting temperature sensor error (TH3)
5104 Liquid surface detecting temperature sensor error (TH4)
12.3. How to cope with test run abnormality
1 A 4-digit check code is displayed on remote controller display panel if unit is stopped due to an abnormality. Check to see causes of that
abnormality.
1. Indoor unit
Check code Abnormality Check code Abnormality
2500 Water leakage abnormality
2502 Drain pump error
2503 Drain sensor error, Float switch on
5101 Air inlet sensor error
5102 Piping sensor error
5103 Piping sensor error in the gas side
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)
7101 Capacity code error
7111 Remote controller sensor error
2. Outdoor unit
a. Variable capacity unit
Check code Abnormality Check code Abnormality
b. Constand capacity unit
Check code Abnormality Check code Abnormality
1102 Discharge temperature abnormality
1112 Low pressure saturated temperature abnormality
(Detected by liquid level detecting temperature sensor)
1113 Low pressure saturated temperature abnormality
(Detected by liquid level detecting temperature sensor)
1302 High pressure abnormality
1500 Excessive refrigerant replenishment
1505 Low pressure abnormality
1559 Faulty oil balance circuit
4103 Reverse phase error
4106 Power failure error
4108 Overload protection (Comp overcurrent)
4115 Power supply simultaneous signal abnormality
5101 Discharge temperature sensor error (TH1)
5103 Liquid surface detecting temperature sensor error (TH3)
5104 Liquid surface detecting temperature sensor error (TH4)
5105 Piping temperature sensor error (TH5)
5106 Outdoor temperature sensor error (TH6)
5107 Subcool coil liquid outlet temperature sensor error (TH7)
5108 Subcool coil bypass outlet temperature sensor error
(TH8)
5109 Sub cool coil bypass inlet temperature sensor error (TH9)
5112 Gas pipe sensor error (TH10a)
5113 Gas pipe sensor error (TH10b)
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)
WT02979X01.pdfWT02979X01.pdf