Convection Fan Motor; Bake Element (Upper Oven); Removing The Bake Element; Reinstalling The Bake Element - Thermador Masterpiece ME271E Series Service Manual

4.12

Convection Fan Motor

The convection fan motor is 120V 29W. To test the motor, check for
120V across X105 / Pin 2 (upper/single) or X205 / Pin 1 (PODC) and
chassis ground or neutral.
The motor is accessible from the rear, after removing the rear outer
sheet metal panel.
1. Disconnect the 2 wires from the motor terminals.
2. Remove 3 T20 screws from the arms of the motor assembly.
3. Use a tap and a hammer to dislodge the assembly from the
clips that secure it to the rear of the unit. (Position tap on the
arm secured by the rightmost clip.)
4.13

Bake Element (Upper Oven)

Refer to the Strip Element Diagram to test the element (240V 2000W)
at the control module, or disconnect the wires from the terminals and
use a meter to check for a reading of ~29 ohms.
To clear a path for removing the bake element, it is necessary to
remove the vertical air channel(s) and disconnect wires. Before
proceeding, note the position of the wires.
4.13.1

Removing the Bake Element

1.
Pull wires out of plastic purse locks attached to upper and
lower vertical air channels.
2.
Remove upper air channel (4 T20 screws).
3.
To create a pathway for the bake element, disconnect OR
wires from upper and lower bake element terminals; YE from
convection element terminals, BU/WH, BU, and WH from
cooling fan motor.
4.
Drape the wires/harnesses to the side so they do not block the
element as it is pulled out.
5.
Remove the screw between the element terminals.
Service Manual for Thermador Masterpiece Series Built-in Wall Ovens
6.
Tuck insulation up into the oven wall as necessary.
7.
While holding element terminals, lift element upward to clear
the outer edge of the compartment.
8.
Hold element on both sides and lift upward as you slide it
straight out.
4.13.2

Reinstalling the Bake Element

There are 2 tabs inside the element cavity, and the front tab will
prevent the element from going in all the way. Use a ruler or the
vertical air channel (after removing plastic purse locks) as a tool to
guide the element back in.
1. Place the tool inside the cavity, on top of the tab, then insert
the element on top of the tool and slide it in.
2. After the element is beyond the front tab, remove the tool.
3. Complete the installation.
4. Replace the plastic purse locks clips if they were removed
from the vertical air channel.
4.14

Cooling Fan Motor (Upper Oven)

Each 2-speed cooling fan (120V 28/41W) has 3 terminals (high
speed, low speed, and neutral) and a Hall effect sensor. There is tape
around the motor windings and the terminals are labeled N, H, and L
for reference, as shown in Figure 17.
Figure 17 Tape on cooling fan windings marked to designate terminals
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