32
Service Manual
Model No: DW12-PFE2-E/DW12-PFE2-U/DW12-PFE2ME-U
Issue
Rev.
Whether water level
switch is ok
Check whether the water
intake velocity is too slow
Whether solenoid valve is
working
Cable or the controller
board is broken
water supply trouble
Phenomenon: water level cannot reach the required location
measure whether solenoid valve is
electrified
Change the solenoid valve
Whether water is flowing in the hose
Whether the stopcock is turned on
Turn on the stopcock
Change water level switch
user’s water pressure is too
low
N
Y
N
Y
Y
Y
N
N
Y