Maintenance And Upkeep; Failure Information And Code - EAS ELECTRIC ECH Serie Manual De Instalación

8. MAINTENANCE AND UPKEEP

8.1 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:
Table 8-1
No.
Code
EEPROM error of main control board
1 1E0
2E0
EEPROM error of inverter module A
2
3E0 EEPROM error of inverter module B
E1
Power phase sequence error
3
E2 Communication error between main control board and wired controller
4
E3 Total water outlet temperature sensor error(master only)
5
Outlet water temp sensor error
E4
6
Condenser tube temperature sensor error
E5
7
Outdoor ambient temperature sensor error
E7
8
Outdoor ambient temperature sensor error
E8
E9 Outdoor ambient temperature sensor error
9
Evaporator anti-freezing temperature sensor (T62)error
1Eb
System self- check error alarm
EC
10
System A discharge pipe temperature sensor error
1Ed
11
2Ed
System B discharge pipe temperature sensor error
Inlet water temperature sensor error
EF
12
System self check fault alarm
EH
13
Discharge pipe temperature sensor error alarm
EP
14
Total cooling outlet temperature sensor(Tz) error
EU
15
High pressure or air discharge temperature protection
(protection occurs for 5 times in 120 minutes and the
P0
16
failure can be recovered by power disconnection only)
Low pressure protection(protection occurs for 5 times in 120 minutes
and the failure can be recovered by power disconnection only)
17 P1
System A Current protection(protection occurs for 5 times
18
P4
in 120 minutes and the failure can be recovered by power
disconnection only)
System B Current protection (protection occurs for 5 times
19
P5
in 120 minutes and the failure can be recovered by power
disconnection only)
1P6 System A inverter module protection
20
System A inverter module protection
2P6
21
P7
Condenser high temperature protection
Protection of outlet and inlet water temperature difference(protection
22 P9 occurs for 3 times in 60 minutes and the failure can be recovered by
power
23
PA
Inlet water high temperature in cooling mode
System anti-freezing protection
24
Pb
V.2
Reason
25 Evaporator pressure low in cooling mode
PC
26 Low-temperature protection of evaporator (manual recovery)
PE
27
PH T4 high temperature protection in heating mode
Tfin module high temperature protection(Protection occurs for
28 3 times in 100 minutes and the failure can be recovered by
PL
power disconnection only)
1PU DC fan A module protection
29
2PU DC fan B module protection
1H0 System A IPM module Communication error
30
System B IPM module Communication error
2H0
H1
Under/Over voltage protection
31
1H4 Three times 1PP protection within one hour (power off recovery)
32
Three times 2PP protection within one hour (power off recovery)
2H4
1H6 System A DC bus voltage error
33
System B DC bus voltage error
2H6
34
Fb Pressure sensor error
35
Air suction temperature protection error
Fd
36
Heat recovery temperature sensor error
FE
37
DC fan A error
1FF
DC fan B error
2FF
38
DIP inconsistency of multiple water pumps(Power
FP
failure recovery required)
39
Inverter module protection
L0
40
DC bus low voltage protection
L1
41
DC bus high voltage protection
L2
42
MCE error
L4
43
Zero speed protection
L5
44
Phase sequence error
L7
45
Compressor frequency variation greater than 15Hz
L8
within one second protection
46
Actual compressor frequency differs from target
L9
frequency by more than 15Hz protection
47
Defrosting prompt
dF
23