Technical Support - MDM
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599 77 39-16 Rev. 00
When the programme ends or the Start/Pause button is pressed, the circuit board sends two additional
20 msec pulses (200 msec apart):
2. The first pulse moves the cam (4) by another position, without releasing the pin (5).
3. The second pulse (which is only sent if everything is in working order) moves the cam (4) to another
position, which causes the pin (5) to return to its position and therefore release the interlock; the contacts
of the main switch are simultaneously opened.
Solenoid protection
A PTC is connected in series to the solenoid to limit the current (and therefore any overheating) in the following
cases:
Main circuit board TRIAC short circuit.
Many consecutive pressings of the start/pause button (more than 5 times).
Appliance door/door open conditions
Before pulses are sent to release the door, the PCB checks for the following conditions:
The drum must be stationary.
The water level must not be higher than the lower edge of the door.
The temperature of the water must not be higher than 40 °C.
11.7.2.1 Mechanical operation
1 Hook
2 Ratchet
When the appliance door closes, the hook (1) fits inside the ratchet (2).
Which, turning on itself, hooks onto and locks the ratchet in place.
If the appliance is switched off or paused and the appliance handle is pulled, the hook is released from the
ratchet (2), effortlessly, whereas if the START/PAUSE button has been pressed, the cursor (8) - being locked -
does not allow the ratchet to turn (2) so the fastening latch is locked for the entire wash cycle.
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