3
The status III: Water current on and off, the alarm continues (red light flash)
Reason:
1
、
Pipe choking issue
2
、
Switching mode power supplies issue
3
、
DC Pump issue
Testing method
1
）
Open the sheet metal on chiller, and observe pipe status within chiller.
Clean the pipes to remove blockage or replace the bending or damage pipes.
2
）
Check output voltage of switching mode power supplies with testing tools; Standard working
voltage of switching mode power supplies is DC24V for CW-5000 series machine.
2.1
）
If output voltage of switching mode power supplies lower than DC18V, the life and flow of
pump will affect due to low voltage, it can be judged as failure of switching mode power supplies or
pump failure.
Solution
: Replace the switching mode power supplies first and then test the pump.
2.2
）
If output voltage of switching mode power supplies is DC24, it can be judged as pump failure.
