Water Flow Detection Malfunction - Midea Aqua Tempo Super Series Technical & Service Manual

MCAC-ATSM-201606

9) Water flow detection malfunction

Water flow detection malfunction
Water pump didn't open or error.
Didn't open the valve in system.
The water flow detection switch
error.
The water flow switch installed out
of criterion, result in mistaking
work.
Selected the capacity of water
pump is less (flow & head).
Designed the water pipe inner
dimension is too less.
Installed the 2-way valve quantity
is more than 50% of indoor unit
quantity.
The filter or water pipe is dirty, the
shell-tube heat exchanger scaled.
Air is in water.
PCB mistakes to alarm.
Inform
center.
Yes
No
No
No
No
No
No
No
No
No
No
the customer service
Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Open the pump or change;
Yes
inspect the power supply or
control circuit of pump.
Yes
Open the valve.
Replace the water flow
Yes
switch, inspect
connecting wire.
Yes
Adjust the
position.
Yes
Replace water pump.
Yes
Replace water pipe.
Yes
Remove superfluous valve
or forced it is always on.
Yes Clean filter, water pipe,
shell-tube heat exchanger.
Yes
Empty.
Yes
Replace PCB.
84
the
installation