8.1.3 Error code
Register
Unit
address
E0
1
Water flow fault(E8 displayed 3 times)
E1
2
Phase loss or neutral wire and live wire are connected
E2
3
Communication fault between controller and hydraulic
E3
4
Final outlet water temp. sensor(T1) fault
E4
5
Water tank temp. sensor(T5) fault
E5
6
The condenser outlet refrigerant temperature sensor(T3) Sensor T3
E6
7
The ambient temperature sensor(T4) fault
E7
8
Buffer tank up temp. sensor(Tbt1) fault
E8
9
Water flow failure
E9
10
Compressor suction temp. sensor (Th) fault
EA
11
Compressor discharge temp. sensor (Tp) fault
Eb
12
Solar temp. sensor(Tsolar) fault
Ec
13
The balance tank low temp. sensor(Tbt2) fault
Ed
14
The plate exchanger water inlet temp. sensor(Tw_in) fault Sensor Tw_in
EE
15
The main control board of hydraulic module EEPROM
P0
20
Low pressure protection
P1
21
High pressure protection
P3
23
Compressor overcurrent protection
P4
24
Compressor discharge temp. too high protection
High temperature difference protection between water
P5
25
inlet and water outlet of the plate heat exchanger
P6
26
Inverter module protection
Pb
31
Anti-freeze mode protection
High temperature protection of refrigerant outlet temp. of
Pd
33
condenser
Water inlet temperature is higher than water outlet in
PP
38
heating mode
Communication fault between main control board of
H0
39
hydraulic module and main control board PCB B
Communication fault between inverter module PCB A and
H1
40
main control board PCB B
The plate exchanger refrigerant outlet(liquid pipe) temp.
H2
41
sensor(T2) fault
The plate exchanger refrigerant outlet(gas pipe) temp.
H3
42
sensor(T2B) fault
H4
43
Three times L0/L1 protection
H5
44
Room temp. sensor(Ta) fault
H6
45
DC fan motor fault
H7
46
Main circuit voltage protection fault
Content
59
Remarks
Only applies to 3-phase models
Sensor T1
Sensor T5
Sensor T4
Sensor Tbt1
Sensor Th
Sensor Tp
Sensor Tbt2
Displayed on user interface when any
of L0, L1, L2, L4,L5, L7, L8 or L9
occur
Sensor T2
Sensor T2B
Sensor Ta
V.1