Cleaning and maintenance Cleaning (customer)
Checking the seal on the maintenance cover
Clean the maintenance cover. Check if the seal on the
maintenance cover is intact and replace if necessary.
Fig. 2-27: Maintenance cover
CAUTION!
Do not operate with damaged seals
Never operate the boiler with damaged seals.
Otherwise, unwanted air is sucked in, disturbing the
combustion process and causing increased wear.
Always replace damaged seals immediately.
Re-attaching the maintenance cover for the
combustion chamber
Re-attach the maintenance cover. Tighten the nuts
alternately and evenly.
Fig. 2-28: Maintenance cover
2.5.5 Establish operational readiness
Switch the boiler on via the mains switch and start
ash removal
Switch the boiler back on at the mains switch. Press
the [De-ash] button for the boiler to start the de-
ashing process. Switch the boiler back on using the on
/ off switch .
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