Bosch HSLP751UCC Service Manual - Page 32
Browse online or download pdf Service Manual for Oven Bosch HSLP751UCC. Bosch HSLP751UCC 45 pages. Built-in wall ovens
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The control module (and daughter board on double ovens) control the
elements, fans, door locks, lights, etc., regulate temperatures, and
monitor safety functions. The module(s) are also responsible for
communication with other modules, analyzing sensor data, regulating
line voltage, and managing user interface activities.
The control module and daughter board are accessible from the top of
the unit. Proceed to the Replacing the Control Module or Daughter
Board section if an HBLP751UCC or HSLP751UCC is not being
serviced.
If an HBLP751UCC or HSLP751UCC combination oven component is
being serviced, refer to Top Access: Combination Models in the
Component Accessiblity section of this manual for important
instructions, then proceed to Step 4 in the following section.
CAUTION
When servicing the standard wall oven component of an
HBLP751UC or HSLP751UC combination oven, only the top front
service access panel will be accessible without removing the
microwave oven or steam oven.
If additional access to the top area of the oven is required, the
microwave or steam oven component must be removed. To safely
remove and reinstall the microwave or speed oven, two people
are required.
6.11.1
Replacing the Control Module or Daughter Board
1. Remove power to the oven.
2. Remove the screws securing the right and left side trim pieces to
the cabinetry.
3. Carefully slide the oven out of the cutout ~16".
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JUNE 2014
4. Locate the Service Guide (wire diagram) attached to the inside of
the service panel.
Figure 47 Control module access panel and Service Guide.
5. Remove the top front housing cover.
6. Disconnect the harnesses, labeling them as necessary.
7. Remove the screws securing the control module or daughter
board to the control mounting bracket and lift the control board out
of the plenum.
8. Install the new control module or daughter board and reattach all
harnesses securely.
9. Restore power to the unit and test operation.
10. Replace the top front housing cover and the Service Guide.
11. Slide the unit back into the cutout and reinstall the side trim
pieces.
Whenever possible, conduct troubleshooting tests at the control
module, using the Service Guide as a reference.
6.12 Cooling Fan
The cooling fan is offered as a service assembly with noise-reducing
foam tape attached. Each cavity uses a 120VAC 50W max variable
speed fan with a normally closed HTC in series with it. If the fan stalls
or shorts out and the air in the fan area reaches 175°F/80°C, the HTC
will open and shut down the cooling fan. This action will cause the
control module to overheat, shut down, and return error code E302 or
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Service Manual for Bosch Benchmark Series Built-in Wall Ovens
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