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Maintenance
8
Maintenance
y Always disconnect the appliance from
the electrical power supply (fuse, circuit
breaker) before carrying out any work on
the electrical systems or components.
y Always turn off the gas cock before car-
rying out any work on components
which carry gas.
There is a special Service booklet for the
i
Engineer, order no. 7 181 465 346, avail-
able to competent persons.
All safety and control systems are moni-
i
tored by the Bosch Heatronic. In the event
of a component fault, the display shows a
fault code.
y The User should be recommended to have the appli-
ance serviced regularly by a competent person (see
Maintenance Contract).
y Use only genuine spare parts
y Refer to the Spare Parts List when ordering spare
parts.
y Always renew seals and O-rings removed during
servicing or repair work.
y Use only the following types of grease:
– Water valve: WRc approved silicon based grease
– Unions: approved sealant.
y To drain the appliance shut the system valves and
open the pressure relief valve.
32
6 720 610 596 GB (01.07)
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