Error Codes - mundoclima 2022 Manuel

SERIES: MUENR-H12
MUENR-05-H12
UNITS:
MUENR-07-H12
MUENR-09-H12
MUENR-12-H12

14.3 Error codes

A series of error codes and corresponding meaning can be found in the table below.
Reset the unit by turning the unit ON or OFF.
If Resetting the unit is invalid, contact your local dealer.
UPPER UNIT ERROR
DISPLAY No. CODE
Water flow malfunction(after 3
1
times E8)
Communication malfunction
3 between controller
and hydraulic module
Total outlet water
4
temp.sensor(T1) malfunction
Buffer tank upper
8
temp.sensor(Tbt) malfunction
Water flow malfunction
9
Solar temp.sensor(Tsolar)
12
malfunction
Inlet water temp.sensor
14
(Tw_in) malfunction
Hydraulic module EEprom
15
malfunction
Communication malfunction
between main control board
39
and hydraulic module board
Liquid refrigerant
41
temp.sensor(T2) malfunction
Gas refrigerant
42
temp.sensor(T2B) malfunction
Room temp.sensor(Ta)
44
malfunction
Outlet water for zone 2
48
temp.sensor (Tw2) malfunction
Outlet water temp.sensor
49
(Tw_out) malfunction
Three times PP protection
50
and Tw_out below 7 ℃
Communication malfunction
52
between master unit and
slave unit
25
31
(CL25640 a CL25648)
(CL25640) MUENR-14-H12
(CL25641) MUENR-16-H12
(CL25642) MUENR-12-H12T
MUENR-14-H12T
(CL25643)
MUENR-16-H12T
MALFUNCTION
OR PROTECTION
(CL25644)
(CL25645)
(CL25646)
(CL25647)
(CL25648)
UPPER UNIT ERROR MALFUNCTION
DISPLAY No. CODE OR PROTECTION
| Tw_out-Tw_in | abnormal
38
protection
Phase loss or neutral wire and
live wire are connected
2
reversely
Air side heat exchanger
6 temperature sensor（T3）
malfunction
The ambient temperature
7
sensor (T4)malfunction
Suction temperature
10
sensor(Th) malfunction
Discharge temperature
11
sensor(Tp) malfunction
Communication malfunction
between main control board
40
and inverter module
43 Three times L0 protection
The DC fan malfunction
45
Voltage protection
46
47 Pressure sensor malfunction
Inverter module board EE
54
prom malfunction
10 times H6 in 2 hours
55
Low pressure protection in
57
cooling mode
20
Low pressure switch protection
21 High pressure switch protection
Compressor overcurrent
23
protection.
Comp discharge temp. too high
24
protection
98
TROUBLESHOOTING
EN