Maintenance And Upkeep; Failure Information And Code - mundoclima MUENR-H9T Manual De Instalación Y Usuario

11 MAINTENANCE AND UPKEEP

11.1 Failure information and code

In case the unit runs under abnormal condition, failure protection code will display on both control panel and wired controller,
and the indicator on the wired controller will flash with 1Hz. The display codes are shown in the following table:
Table11-1
NO. Code
1 E0 Main control parameter memory EPROM failure
Phase sequence failure of main control board check
2 E1
Communication failure between master and the control panel (HMI)
3 E2
Communication failure between master and slave
Total water outlet temperature sensor failure (Tw) (main unit only)
4 E3
Unit water outlet temperature sensor failure (Two)
5 E4
1E5 condenser tube temperature sensor T3A failure
6 E5
2E5 condenser tube temperature sensor T3B failure
Ambient temperature sensor failure (T4)
8 E7
Power supply phase sequence protector output error
9 E8
10 E9 Water flow detection failure
1Eb-->Taf1 cooling evaporator low-temperature
12 Eb
antifreeze protection sensor failure (Taf1)
2Eb-->Taf2 cooling evaporator low-temperature
antifreeze protection sensor failure (Taf2)
Slave unit module reduction
13 EC
1Ed-->A system discharge temperature sensor failure (Tp1)
14 Ed
2Ed-->B system discharge temperature sensor failure (Tp2)
Unit water return temperature sensor failure (Twi)
16
EF
System self-check failure alarm
17
EH
19 Discharge temperature sensor failure alarm (Tp)
EP
Coil final outlet temperature sensor error (Tz/7)
20 EU
System high-pressure protection or discharge
21
P0
temperature protection
22
P1 System low pressure protection
23 Coil final outlet temperature too high (Tz/7)
P2
Ambient temperature too high in cooling mode (T4)
24
P3
System A current protection
25
P4
System B current protection
26
P5
27 Inverter module failure
P6
28
P7
High temperature protection of system condenser
30 P9 Water inlet and outlet temperature difference protection
32 Pb Antifreeze protection in winter
Evaporator pressure too low in cooling
33 PC
Cooling evaporator low temperature antifreeze protection
35 PE
Ambient temperature too high in heatling mode (T4)
37 PH
Content
89
Note
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure recovery
Recovered upon failure rcovery
Recovered upon failure recovery
If there is a failure recovery, the
number of previous protections
will be cleared
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Occurs 3 times in 60 minutes and
the error can be recovered by
turning off the power supply only
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery
Recovered upon error recovery