Bosch TCA640 Series Repair Instruction page 57

6.4.4 Installing / replacing the thermal fuse:
►
After removing the defective thermal fuse,
comply with the following new steps to ensure
correct installation:
1. Check installation position for heater (no dirt or projecting
edges permitted).
2. Check installation bracket (no dirt or sharp edges permitted).
3. Check whether it is the correct type of thermal fuse (according
to wiring / circuit diagram).
4. Position Teflon hose over the thermal fuse, ensuring that none
of the electrically conductive parts remains uncovered (same
as the illustrated example of the thermal fuse, slight kinking is
used to fix the hose).
5. Before installation, bend connections of the new thermal fuse
according to the thermal fuse to be replaced. This must be
done with a suitable pair of flat nose pliers. In doing so,
comply with the following points:
►
Bend must be at least 5 mm from the housing of the thermal
fuse.
►
Teflon hose and thermal fuse must not be damaged.
►
Connections may be bent 1 x only.
6. Position thermal fuse on the mounting surface of the heater,
ensuring that the installation bracket is in the centre of the
thermal fuse housing (attention: note original position).
58300000120060_ARA_en_c.doc – 18.09.09
7. Insert installation bracket into the designated guide. (Ensure
that the bracket is inserted according to the picture)
8. Attach installation bracket with the corresponding screw and
circlip.
9. Following installation, check that the installation bracket on the
side of the thermal fuse is not situated on the heater
(according to following picture).
10. Connect thermal fuse wires to the correct terminals in the
appliance.
Important!
Installation bracket must not be situated on the
heater
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