38
4 Attached Table 1:Outdoor unit errors and
protection codes
No. Error Code Explanation
1 E0 Main control EPROM error
2 E1 Phase sequence error of main control board check
3 E2 Main control and wired control transmission error
4 E3 Total water outlet temperature sensor error (valid for the main unit)
5 E4 Unit water outlet temperature sensor error
6
1E5
2E5
Condenser tube temperature sensor T3A error
Condenser tube temperature sensor T3B error
7 E6 Water tank temperature sensor T5 error
8 E7 Ambient temperature sensor error
9 E8 Power supply phase sequence protector output error
10 E9 Water flow detection error
11
1Eb
2Eb
Taf1 the pipe of the tank antifreeze protection sensor error
Taf2 cooling evaporator low-temperature antifreeze protection
sensor error
12 EC Slave unit module reduction
13 Ed system discharge temperature sensor error
14
1EE
2EE
EVI plate heat exchanger refrigerant temperature T6A sensor
error
EVI plate heat exchanger refrigerant temperature T6B sensor
error
15 EF Unit water return temperature sensor error
16 EP Discharge sensor error alarm
17 EU Tz sensor error
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