The Oven Door Latch Assembly - Thermador C302 Service Manual

THE OVEN DOOR LATCH
ASSEMBLY
The oven door latch locks the oven door during the
CLEAN cycle (see the illustration at the bottom of the
next column for the various latch positions). Refer to
page 2-18 to access the oven door latch assembly.
To test one of the latch switches:
1. With no power applied, remove the wire con-
nectors from the switch terminals.
2. Set the ohmmeter to the R x 1 scale.
3. Connect one of the ohmmeter leads to the com-
mon (C) terminal of the switch.
4. Touch the other ohmmeter lead to the N.O.
(normally-open) switch terminal. The meter
should indicate no continuity with the switch
in its normal position, and continuity when it is
activated.
5. If the reading is not correct, remove and replace
N.O.
Motor Terminals
Latch Position Lock Switch
Unlatched
Latched
Com
Unlock
Switch
Lock
Switch
OVEN DOOR LATCH
Unlock Switch
Yes No
No Yes
the switch.
To test the door latch motor windings:
1. With no power applied, disconnect the motor
wires from the terminal block and main harness
connector.
2. Set the ohmmeter to the R x 100 scale.
3. Touch the ohmmeter leads to the motor wire
connectors. The meter should read between
700 Ω and 750 Ω .
4. If the reading is not within this range, remove
and replace the door latch assembly.
Door Latch Positions
Lock Switch Open
N.O.
Com
Lock Switch Closed
Page 50
UnLock Switch Closed
LATCHED POSITION
UnLock Switch Open
UNLATCHED POSITION