Water Level Control; Door Lock Control - Hisense WFU7012 Service Manual

3. FEATURES & TECHNICAL EXPLANATION
♦ When the program finishes and displays "End", the door will be unlocked, and
the PCB will enter in "End mode".
♦ If no button-press operation is done for 3 minutes when the washing machine
is under "Ready mode", the PCB will automatically be power off and switch to
"Off mode". If no button-press operation is done for 30 seconds when the
washing machine is under "End mode" where the washing is completed, the
PCB will automatically be power off and switch to "Off mode".
♦ In order to avoid the user to falsely triggering the "ON/OFF" button, two
successive seconds are required for switching from "On mode" to "Off mode",
and only one click is required for switching from "Off mode" to "On mode".

3.4 WATER LEVEL CONTROL

♦ This module contains a FWL sensorfor detecting the water level of tub.
♦ During water inflowing, the PCB controls the inlet valve to function and execute
the water inflow operation. When the water level reaches the "Washing water
level", the water inflow stops and the washing process begins. If the water level
declines during washing, it will automatically activate the water inflow and
replenishing program so as to reach the "Washing water level" again.
♦ During water draining, the PCB controls the draining pump to continuously
work and begin the water draining process. When the water of tub is discharged
down to the "Spinning water level", the Spinning process will begin.

3.5 DOOR LOCK CONTROL

♦ When the PCB enters in "Ready mode", it will detect the state of door lock and
execute operation accordingly. When the door is unlocked, no operation is done
if the unlocking conditions are satisfied, otherwise, the door should be locked;
when the door is locked, execute unlocking operation if the unlocking conditions
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