Door Latch/Motor Assembly; Lamps - Thermador PO301 Service Manual

Figure 9 Opening (left) and closing (right) door hinges
4.2

Door Latch/Motor Assembly

The motorized door latch (MDL) mechanism (120V 5W) has 2
switches - the door switch and the lock/unlock switch. The latch will
automatically lock when mode and temperature selectors are set to
CLEAN, and unlocks when the oven cools to ~490°F. It is serviced as
an assembly. See Figure 10.
If the latch becomes stuck in the locked position, turning the unit off
and back on will open the latch if the cavity temperature <450°. If latch
is stuck in partially locked position, turn the mode selection knob to
CLEAN, then to OFF.
In models with a display, the latch can be tested in Service Mode.
To remove the latch/motor assembly:
1. Remove 3 T20 screws securing trim piece to frame (do not
remove 2 screws on either side of latch).
2. Pull trim forward about 1", then slightly to the right or left to
clear the screw tab (see Figure 10).
3. Slip hands under trim and lift upper plate while sliding trim and
latch toward you.
Service Manual for Thermador Professional Series Built-in Wall Ovens
Screw
Tab
Figure10 Door latch/motor assembly
4.3

Lamps

Softlight is a feature in all oven Pro Series oven cavities, and a triac is
used to switch the voltage. The lights will gradually fade in when
turned on, and fade out when turned off.
If this feature is not working properly, check the pin-out of X105 to
verify that pin 6 (Softlight triac output) is utilized rather than pin 5
(relay output). On double ovens, verify that pin 4 on X205 (Softlight
triac output) is utilized rather than pin 3 (relay output). If the pin-out is
correct, replace the control module.
There are 4 halogen lamps in each Pro Series cavity: 1 on each side,
and 2 on the oven ceiling. Double oven lights are operated by a series
of button pushes as shown in Table 5.
LIGHT Button Upper Oven
Lights
st
1 Touch ON
nd
2 Touch ON
rd
3 Touch OFF
th
4 Touch OFF
Table 5 Double oven lighting operation
Lock/
Door
Unlock
Switch
Switch
Lower Oven
Lights
OFF
ON
ON
OFF
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