Bosch FAP-OC 500Series Manuel d'entretien - Page 25

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Bosch FAP-OC 500Series Manuel d'entretien
58300000202181 ARA EN B
14. Remove the top front housing cover.
15. Disconnect the harnesses, labeling them as necessary.
16. Squeeze, gently with needle-nosed pliers, the top of each
spacer, then lift that section of the board off the spacer.
Figure 33 Snap-in standoff
17. Install the new control module or daughter board by
positioning the control module so that the holes in the control
module align with the spacers, and firmly push the board
downward to secure it in place.
18. Reattach all harnesses securely.
19. Restore power to the unit and test operation.
20. Replace the top front housing cover and the Service Guide.
21. 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.

6.11 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
E303. When the HTC detects a temperature of 150°F/65°C, it will
close and allow the fan to run.
Copyright by BSH Home Appliances Corporation
This material is intended f or the sole use of BSH authorized persons and may contain conf idential and proprietary inf ormation. Any unauthorized rev iew, use, copy ing, disclosure, or distribution in any f ormat is prohibited.
Novemb er 2018
To test the upper fan at the control module, check voltage across
X105 / Pin 3 and neutral. There is also a Cooling Fan Relay Test
available in Service mode. See the Service Mode section for details.
Figure 34 Cooling fan motor and HTC

6.11.1 Replacing the Cooling Fan

1901 Main St ▪ Suite 600 ▪ Irvine, CA 92614
Service Manual for Bosch 500 Series Built-in Wall Ovens
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 to gain access to the
cooling fan from the rear of the unit.
4. Remove the rear oven housing.
5. Remove the top rear oven housing.
6. Remove the screws securing the outer fan housing cover and
set aside.
Figure 35 Cooling fan and outer housing
1 Cooling fan
outer housing
1
2 Cooling fan
2
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