Over-temperature of
the module
Air duct blocked
Too high temperature
Clear the air duct or improve the ventilation
condition
AC CT fault Device or circuit damaged Ask manufacturer for help
DC CT fault Device or circuit damaged Ask manufacturer for help
Step out fault Device or circuit damaged Ask manufacturer for help
Phase loss fault Output circuit broken Inspect the output wires of motor
Locked-rotor fault Pump stuck Inspect the pump
Communication fault Device or circuit damaged
Reset
Ask manufacturer for help
4.2 Other Codes Description
CODE
Code description Relevant description
Parameter initialization Return to normal after resetting
Important parameter modification Return to normal after resetting
Controller model
:48V rated voltage
: 600W rated power
Start delay time Countdown of the restart: 30 seconds
Well water level is too low
When well water level becomes normal, system will
restart after 600seconds
Tank water level is too high
When tank water level becomes normal, system will
restart after 600seconds
4.3 Fault Inquiry and Resetting
The controller can record the fault codes of the latest 10 times. The information can
help finding the fault cause. Fault information is stored together with the control
parameterPr.1~Pr.30. Please refer to panel operation method to search and find out
the fault information.
When the controller fault occurs, please press
and reset key combination
together, or cut off the power supply to restore normal operation.
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