17
TROUBLESHOOTING
PROBLEM
CAUSE
ACTION / REMEDY
Filling time is too long
No water out
Check the water source
Inlet solenoid block up
Turn off the water source
Disassemble the inlet solenoid and clean
Reinstall back to machines and turn on the
water source
The pressure of water source is
too low.
Water pressure is lower than working
pressure 1.0kg/cm2
Install another pressurized motor
Inlet solenoid failure or circuit
board failure
The screen displays [Please wait, tank
Inlet solenoid with working pressure >
solenoid abnormal > replace solenoid
Inlet solenoid without working pressure >
circuit board abnormal > replace circuit board
Screen displays
Temperature sensor failure
Check/replace
Temperature is too high
Temperature sensor failure
Check/replace
Power is ON, Screen is not
displaying
No power input
Check the power source
Circuit board malfunction
Replace circut board
Screen displays normal,
but touch inputs are not working
Control board strip not properly
connected
Check all touch buttons.
Check if the control board strip
is inserted correct or not.
Check if the control board strip
pin and the drop-out line is
connected incorrectly.
Control board malfunction
Replace control board
Circuit board malfunction
Replace circuit board
brew cycles
Filter pan is blocked up
Lack of springs > insert the springs to the
The interval of pulse time is not
enough
Set the proper interval of pulse time
Water pressure is higher than
working pressure
Add additional pressure reduce valve
Inlet solenoid failure
Check/replace
