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Maintenance (expert) Cleaning and maintenance
2.6.9 Clean lambda probe
Cleaning the lambda probe
Only vacuum the head of the lambda probe with an ash
vacuum. Do not dismantle the lambda probe.
Fig. 2-89: Head of lambda probe
Checking the seal on the maintenance cover
Check if the seal on the maintenance cover is intact
and replace if necessary.
Fig. 2-90: Seal
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.
Mount the heat exchanger cleaner maintenance
cover.
Replace the maintenance cover of the heat exchanger
cleaner. Tighten the screws alternately and evenly.
Fig. 2-91: Maintenance cover
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