Door Latch Assembly - Thermador CM301B Service Manual

Lit. No. 94-30-006B

DOOR LATCH ASSEMBLY

Latch Motor
Terminals
Door Unlock Switch
(N.O.) Terminals
Refer to Page 26 to access the door latch assem-
bly. To test the door latch assembly compo-
nents, perform the following steps.
1. Turn off the electrical power to the oven.
2. Set the ohmmeter to the R x 1 scale.
Testing The Latch Motor
3. Disconnect the two orange wires from the
latch motor terminals.
4. Touch the test leads to the motor termi-
nals. The meter should indicate less than
1 Ω.
Testing The Door Lock, Door Unlock, &
Latch Interlock Switches (All Normally-
Open N.O.)
5. Disconnect one of the wires from the ter-
minal of the switch under test.
6. Touch the test leads to the switch termi-
nals. The meter should indicate an open
circuit (infinite resistance).
7. Press the switch button to close the con-
tacts. The meter should indicate a short
circuit (0 Ω).
Latch Interlock Switch
(N.O.) Terminals
Door Lock
Switch (N.O.)
Terminals
Page 55
MONITOR & SECONDARY
SWITCHES
Secondary Switch
(N.O.) Terminals
Refer to Page 27 to access the monitor and
secondary switches. To test the switches, per-
form the following steps.
1. Turn off the electrical power to the oven.
2. Set the ohmmeter to the R x 1 scale.
Testing The Secondary Switch (Normally-
Open N.O.)
3. Disconnect one of the wires from the sec-
ondary switch.
4. Touch the test leads to the switch termi-
nals. The meter should indicate an open
circuit (infinite resistance).
5. Press the switch button to close the con-
tacts. The meter should indicate a short
circuit (0 Ω).
Testing The Monitor Switch (Normally-
Closed N.C.)
6. Disconnect one of the wires from the
monitor switch.
7. Touch the test leads to the switch termi-
nals. The meter should indicate a short
circuit (0 Ω).
8. Press the switch button to close the con-
tacts. The meter should indicate an open
circuit (infinite resistance).
CM Oven Service Manual
Monitor Switch
(N.C.) Terminals