5. MAINTENANCE AND INSPECTION
18
5.2 Malfunction table
Power on
Recovery temp. Sensor failure
Coil 1 temp. Sensor failure
2 on 1 off
8 on 1 off
Flashing
Off
P01
P02
P033
P15
P25
P04
Suction 1 temp. Sensor failure
P17
P27
P181
P182
P19
P29
E11
E21
E12
E22
E03
E035
E04
E101
E201
E06
E171
E172
E271
E272
E19
E29
P182
P282
E05
E08
malfunction
Indicator
display
Reason
resolution
On
Normal working
Outlet temp. Sensor failure
Inlet temp. Sensor failure
Ambient temp. Sensor failure
Coil 2 temp. Sensor failure
Suction 1 temp. Sensor failure
1 On 1 off
3 on 1 off
4 on 1 off
5 on 1 off
5 on 1 off
7 on 1 off
7 on 1 off
8 on 1 off
8 on 1 off
9 on 1 off
9 on 1 off
11 on 1 off
11 on 1 off
12 on 1 off
12 on 1 off
13 on 1 off
13 on 1 off
14 on 1 off
21 on 1 off
21 on 1 off
16 on 1 off
17 on 1 off
17 on 1 off
17 on 1 off
17 on 1 off
19 on 1 off
19 on 1 off
8 on 1 off
8 on 1 off
You can refer to the malfunction table to find out the failure cause and solution.
The primary anti-freezing
protection
System protection
Defrosting
Communication failure
Water flow is not enough
and low differential pressure
Communication failure between
wire controller and main board
The protection system is failure
Water flow is not enough
The ambient temp. Is low
No water/little water in water
system
Water flow over-low failure
The high-preesure switch is broken
Elctrical-heat over heat failure
Electrical-heat is over heat
Compressor 1 overload failure
Compressor is overload
Discharge Temp. Of system 1
is too high
The compressor is overload
Water flow failure
Discharge 1 temp. Sensor failure
Discharge 2 temp. Sensor failure
Antifreezing 1 temp.
Sensor failure
Antifreezing 2 temp.
Sensor failure
High pressure1 protection
High pressure2 protection
Low pressure1 protection
Low pressure2 protection
Compressor 2 overload failure
Water-inlet and outlet
temp. difference
The system 1use side
antifreezing protection
The system 2 use side
antifreezing protection
The system 1heat source
side antifreezing protection
The system 2 heat source
side antifreezing protection
The secondary anti-freezing
protection
Discharge Temp. Of system 2
is too high
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
The temp. Sensor is broken or short circuit
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
Check or change the temp. Sensor
The high-preesure switch is broken
The low-preesure switch is broken
The low-preesure switch is broken
Compressor is overload
Water flow is not enough
Water flow is not enough
Water flow is not enough
The ambient temp. Is low
The compressor is overload
The temp. Sensor is broken or short circuit
No water/little water in water
system
Check the pressure switch and cold circuit
Check the pressure switch and cold circuit
Check the pressure switch and cold circuit
Check the pressure switch and cold circuit
Check the pipe water flow and water pump
Check the pipe water flow and water pump
Check or change electrical-heat
Check the compressor functionality
Check the compressor functionality
Check the pipe water flow and whether water
system is jammed or not
Check the pipe water flow and whether water
system is jammed or not
Check the pipe water flow and whether water
system is jammed or not
Check the pipe water flow and whether water
system is jammed or not
Check the pipe water flow and whether water
system is jammed or not
Check the compressor functionality
Check the compressor functionality
Check each protection point of the system
Check the wire connection between
remote wire controller and main board
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