High Temperature Cutout (Htc); Convection Fan And Ring Element - Bosch HBL8 50UC Series Service Manual

3. Pull the halogen bulb straight out from its socket.
4. Using a clean, dry cloth, insert the new bulb.
5. Reinsert the bottom of the glass cover (smooth side out) into
the bottom clip, and firmly push the top of the cover into the
upper clip until it snaps into place.
6. Restore power to the unit.
4.3.1.2 Halogen Side Lamp (Horizontal-style)
1. Remove racks and rack support.
2. Slide tip of flat-blade screwdriver between fixing clip and lamp
housing, while supporting lens cover along bottom edge.
Holder
clip
Figure 10 Horizontal-style side lamp
3. Gently twist screwdriver to loosen the lens cover.
4. Remove cover and fixing clip.
5. Grasp halogen bulb and pull it straight out from its socket.
6. Using a clean, dry cloth, insert new bulb into socket.
7. Reinsert lens cover into the holder clip and gently push back
until fixing clip snaps into place.
8. Restore power to the unit.
4.3.1.3 Halogen Ceiling Lamp and Incandescent Cavity Lamp
1. Unscrew glass cover.
2. Pull halogen bulb straight out of its socket, or unscrew
appliance bulb.
3. Using a clean, dry cloth, insert the new bulb.
4. Replace the glass cover.
5. Restore power to the unit.
Slide screwdriver
between fixing clip
and lamp housing.
Figure 11 Round halogen ceiling lamp (L); traditional lamp with 40W or 25W appliance
bulb (R).
4.4

High Temperature Cutout (HTC)

The HTC is a normally closed switch which will interrupt the relay
supply voltage in the event of a high temperature event caused by a
malfunctioning control module.
The HTC is located in the plenum, behind and to the left of the MDL.
Although it cannot be easily removed or replaced, a screwdriver can
be used to reach the reset button located on the top center of the HTC
after the latch plate has been removed.
4.5

Convection Fan and Ring Element

All models except the HBL33/HBN33 and the lower cavity of the
HBL56/HBN56 and HBL35/HBN35 models, which have a thermal
oven cavity, are configured with convection capabilities in the upper
and/or lower ovens. The HBL34/HBN34 and HBL35/HBN35 models
have a convection fan only, and the remaining models with convection
cavities have both a convection fan and a convection (also called a
rd"
"ring" or "3 ) element, which gives the ovens true (or genuine
European) convection capability.
Depending on the cooking mode selected, the fan may be used, with
or without the ring element, to circulate heat evenly throughout the
cavity in various cooking modes.
Service Manual for Bosch Built-in Wall Ovens
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