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