Maintenance
Component
Check step / Actions
Inner chamber and outer enclosure
- Glass door
- Closure of glass door
- Glass door supports at the sides
of the inner chamber
Check the glass door and the door hinges for damages.
Check the door hinges for well running.
Check the glass door for alignment and tight fit.
If necessary, align the glass door.
Check the glass door gasket.
If necessary, replace the glass door gasket.
Check the glass door closure.
If necessary, replace the glass door closure (chap. 7.2, page 57).
Check the solidity of the conglutination of the door handle and the glass door
hinges.
If necessary, replace the glass door (chap. 7.1, page 56).
Fan (-
4M1
)
Check the fan for damages, corrosion, function and bearing noises.
If necessary, replace the entire fan (chap. 7.4, page 59).
Gaskets between the inner cham-
ber and the outer enclosure
Check the gaskets between inner chamber and outer enclosure
If necessary, replace the gaskets between the inner chamber and the outer en-
closure (chap. 7.5, page 62).
Heating element (
-4E1
)
Check the resistance of the heating element.
If necessary, replace the heating element (chap. 7.8, page 66).
Humidity sensor (-
3B2
)
If necessary with dirt load inside the KBF, replace the filter cap of the humidity
sensor (chap. 7.10, page 71).
Machine room
Machine room
Check the machine room for soiling, mechanical damages and corrosion.
Clean the machine room from dust and similar dirt.
Electric and electronic components
Mains plug
power cord
Check the mains plug and power cord for damages.
If necessary, replace the mains plug and power cord (chap. 8.2, page 77).
Main switch (-
1S1
) and
Humidity switch (-
8S1
)
Check the main switch and humidity switch for mechanical damages and corro-
sion.
If necessary, replace the main switch or the humidity switch
RJ45 socket (-
2U1
)
Interface RS 422
Check the RJ45 socket for mechanical damages and corrosion.
If necessary, replace the RJ45 socket (chap. 8.11, page 88).
Electric mounting plate
Check the electric mounting plate and the components on it for soiling, damages
and corrosion.
If necessary, clean the electric mounting plate and the components.
If necessary, replace the components on the electric mounting plate (chap. 8.6 ff,
page 82).
Check the components and the cables of the components on the electric mount-
ing plate for sufficient fixing.
Fix loose cables and components and replace any damaged cables.
Electronic components in the
machine room
Check the electronic components in the machine room for sufficient fixing, soiling,
damage, and corrosion.
If necessary, replace the electronic components in the machine room (chap. 8ff,
page 75).
Check the cables of the electronic components in the machine room for sufficient
fixing and for damages.
Fix loose cables and replace any damaged cables.
Service Manual KBF (E5.2) 04-2015
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