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2.Malfunction Indicating Table.
Determine and solve the malfuction by malfuction code as below:

V.Maintenance and repair

1.1 Check whether the exhaust equipment is normal. Avoid cutting of the water supply and or air entering
into the system, or it will influence the performance and reliability of the unit. The water filter should
be cleaned regularly. Keep the water clean in case of any damage to the unit due to filter's dirty and jam.
1.2 Keep the unit environment dry, clean and well ventilation. Clean the side air exchanger regularly(once
per1-2 months) in order to maintain high exchange efficiency and save energy.
1.3 Often check the performance of all the parts in the unit. Check whether the working pressure of the
refrigerant system is normal. Repair and change the parts timely if there's any abnormity.
1.4 Often check whether the wiring of the power and electric system is tightened and or electric parts
perform abnormally or smells. Repair and change the parts timely if there's any abnormity.
1.5 Care the unit if the unit stops for a long time. Discharge all the water in the pump and throughout the
pipe route in case breakdown to the water pump and pipe caused by frost and freeze. Discharge the
water from the water pump and tube exchange Button drain. Check the unit thoroughly and flood
water into the system before the unit power on again.
1.6 To check the operation of every process in the unit, the operation pressure of the refrigerant system.
You should maintain or change it in time.
1.7 To check the power supply and cable connection often, there is abnormal action or bad smell about
the electrical component. If there is, please maintain or change it in time.
1.8 This appliance is intended to be used by expert or trained users in shops, in light industry and on farms,
or for commercial use by lay persons. The instructions includes a warning to disconnect the appliance
from its power source during service and when replacing.

1.Note

Means

Resolution

Wire Controller display

Failure to read and write EEPROM
of wired remote control

Reconnect the power after connected the power for
five second. If several attempts are still fault, replace
the wired remote control.

Communication fault between the wired
remote control and adapter plate

Please check the remote control, adapter plate and
the wired, to see if all normal.

Discharge temperature sensor fault

Please check if the compressor discharge temp.
Sensor connected circuit or disconnect.

Water inlet temperature sensor fault

Please check if the water inlet temperature
sensor short circuit or disconnect.

Water tank temperature sensor fault

Please check if the water tank temperature
sensor short circuit or disconnect.

Water outlet temperature sensor fault

Please check if the water outlet temperature
sensor short circuit or disconnect.

Coil temperature sensor fault

Please check if the coil temperature
sensor short circuit or disconnect.

Water flow fault

Check the water flow volume, water pump is
failure or not.

System high pressure protection
The system's high pressure is open

E14

E15

Ambient temperature sensor fault

Please check if the ambient temperature
sensor short circuit or disconnect.

1. Testing the water system, to see if it is dirty,
blocked or not.
2. Fin of fans outside is dirty or not, not good for
heat exchange.
3. If you have refilled the refrigerant, pls check if fill
too much refrigerant.
4. Pls check if the setting temp of hot water hot
water is too high.