Reinstalling The Bake Element; Cooling Fan Motor (Upper Oven); Error Codes; Error Code Table - Bosch HBL8 50UC Series Service Manual

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 18.
Figure 18 Tape on cooling fan windings marked to designate terminals
If the Hall effect sensor does not detect fan rotation, an error will
display. To test the upper fan at the control module, check voltage
across X105 / Pin 3 or 4 and neutral.
1. Remove 3 T20 screws securing the fan to the mounting
bracket.
2. Remove 3 T20 screws securing the bracket to the oven
housing.
3. Slide bracket up and out to release it from the 2 tabs holding it
in position.
4. Remove 3 T20 screws from the right side of the unit's top
panel.
5. Lift the right corner of the top panel and remove the fan/motor.
5

ERROR CODES

A Service Guide with error code information, wiring diagrams, and
instructions for entering Service mode (if applicable) is packed with
every unit. Find it on the underside of the upper plenum access panel
as shown in Figure 19.
Figure 19 Location of Bosch Built-in Oven Service Guide
5.1

Error Code Table

The following table is included in the oven Service Guide. The error
codes which begin with E2 apply to the lower cavity of double ovens.
Diagrams referenced in the table can also be found in the appropriate
Service Guide.
Service Manual for Bosch Built-in Wall Ovens
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