21
7.Operation & Usage
4.
Set point automatic regulation
The mode of the factory setting is automatic mode, which it can change the set point follow the
ambient temperature automatically. Decreasing the set point properly can save more
energy in the summer and the set point will rise automatically to make sure the comfortable use in
the winter. Of course, you can set the point by manual. Use up or down arrow key set
the hot water temperature. The unit will disable automatic function, after the manual setting. You can
press the mode key for 10 seconds to recover this function.
5.
Normal failure and solution
Troubleshooting:
Fault
Code display
Reason
Solution
Turn on
Running
Bottom sensor failure
P 01
The sensor is open or short circuit
Check and replace the bottom temp.sensor
Upper sensor failure
P 02
The sensor is open or short circuit
Check and replace the upper temp.sensor
Coil sensor failure
P 03
The sensor is open or short circuit
Check and replace the coil temp.sensor
Suction sensor failure
P 04
The sensor is open or short circuit
Check and replace the suction temp.sensor
Ambient sensor failure
P 05
The sensor is open or short circuit
Check and replace the ambient temp.sensor
High pressure protection
E 01
The high pressure is over 21bar or
pressure switch connection open.
Check connection and refrigerant system.
Low pressure protection
E 02
The low pressure switch
connection open.
Check connection and refrigerant system.
Thermal protection
E 03
Water temperature is too higher,
more than 85
℃。
Check if the water is enough
Communication failure
E 08
Communication cable disconnect
or have a strong interference near
the unit.
Check the connection of the pcb.
Defrosting
Flash
Содержание WSW1-80L-WM
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