TRAINING MANUAL WM3001H*A
WM3001H*A Page 76 Washer
DOOR LOCK SWITCH ASSEMBLY
The door lock switch assembly includes a heating PTC, a bimetal, a protection PTC, and a
solenoid. The assembly locks the door during the wash cycle and under certain other
conditions. See page 76 for complete information on door locking.
DOOR LOCKING
When the system is energized through terminals 2 and 4, the PTCs begin heating. Before
the solenoid operation is activated, the cam forces the system to the OFF position. One
impulse through terminals 3 and 4 locks the door. The lock is detected by the main
board when terminals 4 and 5 are closed.
DOOR UNLOCKING
When the machine is paused, the main board sends an impulse to terminals 3 and 4 and
rotates the cam to the open position. The maximum number of impulses is 3. Upon the
4
th
impulse, the cam reverts to the locked position.
Test results at 77° F (25° C)
2 to 3 700 ~ 1,500
3 to 4 60 ~ 90
4 to 5 (infinity)
2 to 4 120 V
AC
(input voltage)
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