58300000202443_ARA_EN_C
JANUARY 2018
Service Manual for Bosch 800 Series Built-in Wall Ovens
Page 21 of 43
Copyright by BSH Home Appliances Corporation
1901 Main St
▪
Suite 600
▪
Irvine, CA 92614
800 944-2904
This material is intended for the sole use of BSH authorized persons and may contain confidential and proprietary information. Any unauthorized review, use, copying, disclosure, or distribution in any format is prohibited.
Figure 23 Accessing the latch/HTC on the top insulation retainer
6.3.1 Resetting and Replacing the HTC
Always troubleshoot a tripped HTC to determine the underlying cause
of the interruption.
To reset the HTC…
1. Remove power to the oven.
2. Insert a flat blade screwdriver through one of the vent slots,
and depress the red reset button.
3. Restore power and test operation.
To remove the HTC from the front, a right-angled screwdriver will be
needed….
1. Remove power to the oven.
2. First remove the latch plate and remove or slide the
latch/motor assembly aside as described in the
Replacing the
Latch/Motor Assembly
section.
3. Using a right-angled screwdriver, remove the two screws
securing the HTC to its mounting bracket.
If it is not possible to complete step 3 from the front,
continue with step 4.
If the screws were successfully removed, skip to step
9.
4. Remove the screws securing the right and left side trim pieces
to the cabinetry, and set screws aside.
5. Carefully slide the oven out of the cutout to gain access to the
front and rear top housing covers.
6. Remove the top housing covers.
7. Remove the control panel.
8. Remove all of parts identified with a
in Figure 22, labeling
wires prior to disconnecting, as necessary, until the top
insulation retainer is reached and the HTC is accessible.
9. Disconnect the wires and remove the HTC.
10. Install the new HTC.
11. Reinstall or reposition the latch motor assembly.
12. Reinstall all parts, reconnecting wires, as necessary (refer to
the
Service Guide
(wire diagram) attached to the inside of the
access panel on the top front housing cover for reference.
13. Restore power and test operation.
14. Slide the oven back into the cutout and resecure the oven to
the cabinetry with the original trim screws.
NOTICE
The HTC switch should only be reset once or twice before being
replaced. The switch weakens each time it trips, so it will become
easier and easier for the switch to trip during high-temperature cycles
(i.e., Self-clean) if it has weakened over time.