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