13
Failure diagnosis
The advanced production technology and testing methods are used for rigorous testing
before delivery, to ensure good reliability. In service, the common failures are
generally caused by improper operation or setting.
If the errors cannot be handled properly, please record the error phenomenon and
notify the local dealer, or contact us directly.
The following are the possible failures of low-temperature cooling circulating pump
in application:
Fault phenomenon
Cause analysis
Solution
No temperature display
Unavailability of
power supply
Check the power supply.
Fuse blown out
Replace a matching fuse
Power cable
disconnected
Reconnect the power
cable properly.
Power switch is not
turned ON
Switch power ON
Display panel wiring
fell OFF
Plug in the connecting
wire properly.
The circuit board
stained with splashed
water
Wipe dry or air dry the
circuit board before
startup.
Abnormal Temperature
display
Sensor fell OFF
Remount and tighten the
sensor
Abnormal Temperature
adjustment
Voltage unstable.
Restart after stabilizing
the voltage.
Temperature control
circuit damaged
Replace the temperature
control circuit.
Absence of refrigeration or
slow refrigeration
System leaked
Have a professional repair
it.
Temperature fails to reach
the set value, resulting in
shutdown.
Temperature control
circuit damaged
Replace the temperature
control circuit.
Compressor overheat
Improve the ventilation
