66
4
Error Code Table
Code
Content
Remarks
E0
Main control EPROM error
Displayed on main PCB and user interface
E1
Phase sequence failure of main control board check
Displayed on main PCB and user interface
E2
Main control and wired control transmission error
Displayed on main PCB and user interface
Communication failure between master and slave
E3
Total water outlet temperature sensor error (valid for the main unit)
Displayed on main PCB and user interface
E4
Unit water outlet temperature sensor error
Displayed on main PCB and user interface
E5
1E5 Condenser tube temperature sensor T3A error
Displayed on main PCB and user interface
2E5 Condenser tube temperature sensor T3B error
E6
Water tank temperature sensor T5 error
Displayed on main PCB and user interface
E7
Ambient temperature sensor error
Displayed on main PCB and user interface
E8
Power supply phase sequence protector output error
Displayed on main PCB and user interface
E9
Water flow detection error
Displayed on main PCB and user interface
Eb
1Eb: Taf1 the pipe of the tank antifreeze protection sensor error
Displayed on main PCB and user interface
2Eb: Taf2 cooling evaporator low-temperature antifreeze protection sensor error
Displayed on main PCB and user interface
EC
Slave unit module reduction
Displayed on main PCB and user interface
Ed
System discharge temperature sensor error
Displayed on main PCB and user interface
EE
1EE EVI plate heat exchanger refrigerant temperature T6A sensor error
Displayed on main PCB and user interface
2EE EVI plate heat exchanger refrigerant temperature T6B sensor error
Displayed on main PCB and user interface
EF
Unit water return temperature sensor error
Displayed on main PCB and user interface
EH
System self-check error alarm (for
SCV-900EB and
SCV-1800EB)
Displayed on main PCB and user interface
EP
Discharge sensor error alarm
Displayed on main PCB and user interface
EU
Tz sensor error
Displayed on main PCB and user interface
P0
P0 System high-pressure protection or discharge temperature protection
Displayed on main PCB and user interface
1P0 Compressor module 1 high pressure protection
Displayed on main PCB and user interface
2P0 Compressor module 2 high pressure protection
Displayed on main PCB and user interface
P1
System low pressure protection
Displayed on main PCB and user interface
P2
Tz total cold outlet temperature too high (for
SCV-900EB and
SCV-1800EB)
Displayed on main PCB and user interface
P3
T4 ambient temperature too high in cooling mode
Displayed on main PCB and user interface
P4
1P4 System A current protection
Displayed on main PCB and user interface
2P4 System A DC bus current protection
Displayed on main PCB and user interface
P5
1P5 System B current protection
Displayed on main PCB and user interface
2P5 System B DC bus current protection
Displayed on main PCB and user interface
P6
Inverter module failure (for
SCV-900EB and
SCV-1800EB)
Displayed on main PCB and user interface
P7
High temperature protection of system condenser
Displayed on main PCB and user interface
P9
Water inlet and outlet temperature difference protection
Displayed on main PCB and user interface
PA
Abnormal water inlet and outlet temperature difference protection
Displayed on main PCB and user interface
Pb
Winter antifreeze protection
Displayed on main PCB and user interface
PC
Cooling evaporator pressure too low
Displayed on main PCB and user interface
PE
Cooling evaporator low temperature antifreeze protection
Displayed on main PCB and user interface
PH
Heating T4 too high temperature protection
Displayed on main PCB and user interface
PL
Tfin module too high temperature protection
Displayed on main PCB and user interface
Summary of Contents for SCV-1400EB
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Page 46: ...44 1 Electric Control Box Layout For SCV 750EB For SCV 1400EB...
Page 61: ...59 3 Wiring diagram 3 1 Single unit For SCV 750EB and SCV 1400EB...
Page 62: ...60 For SCV 900EB...
Page 63: ...61 For SCV 1800EB...
Page 78: ...76 5 5 E3 E4 E5 E7 Eb Ed EE EF EP EU Fb Fd Troubleshooting Digital display output...
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