pump units.
2.
Loose communication cable
wiring.
3.
Bad controller.
each heat pump units and
the status of each air switch.
2.
Inspec the communication
cable wiring and fix.
3.
Replace the control board.
E0X-01
RESERVED
E0X-02
OUTLET WATER TEMPERATURE
SENSOR ERROR
1.
Loose wiring.
2.
Bad sensor.
1.
Inspect the wiring of the
realted sensor.
2.
Replace the related sensor.
E0X-03
DISCHARGE TEMPERATURE
SENSOR ERROR
E0X-04
SUCTION TEMPERATURE SENSOR
ERROR
E0X-05
RESERVED
E0X-06
MEMORY CHIP ERROR
E0X-07
COIL TEMPERATURE SENSOR
ERROR
1.
Loose wiring.
2.
Bad sensor.
1.
Inspect the wiring of the
realted sensor.
2.
Replace the related sensor.
E0X-08
RESERVED
E0X-09
AMBIENT TEMPERATURE SENSOR
ERROR
1.
Loose wiring.
2.
Bad sensor.
1.
Inspect the wiring of the
realted sensor.
2.
Replace the related sensor.
E0X-10
INLET WATER TEMPERATURE
SENSOR ERROR
E0X-11
FLOW SWITCH ERROR
1.
Loose wiring.
2.
No water, the valve had
been opened fully.
3.
Too small water flow rate,
blocked water filter.
4.
Bad switch.
1.
Inspect the wiring and fix
them.
2.
Inspect the piping system
and make sure all the valves
are fully open.
3.
Clean the water filter.
4.
Replace the switch.
E0X-12
HIGH PRESSURE ERROR
1.
Loose wiring of the higher
pressure switch.
2.
Too small water flow rate.
3.
Water filter block.
4.
Scalling condenser.
5.
Refrigerant filter or
expansion valve block.
6.
Bad higher pressure switch.
1.
Inspect the wirng and fix.
2.
Inspec the water piping
system including the pump
selection.
3.
Clean the water filter.
4.
Clean the condenser.
5.
Replace the refrigerant filter
or expansion valve.
6.
Replace the high pressure
switch.
E0X-13
LOW PRESSURE ERROR
7.
Loose wiring of the lower
pressure switch.
8.
Refrigerant leakage.
9.
Refrigerant filter or
expansion valve block.
10.
Bad evaporator
performance.
11.
Bad low pressure switch.
1.
Inspect the wirng and fix.
2.
Perform the leakage
detection and recharge the
refrigerant.
3.
Replace the refrigerant filter
or expansion valve.
4.
Clean the evaporator and
check the air circuit.
