Checking The Heating Surfaces For Contamination - Viessmann Vitoplus 300 Service Instructions Manual

Further details regarding the individual steps

Checking the heating surfaces for contamination

1. Pull plug aCA and a-Ö from the
fan. Remove the cables from the
cable clip on the l.h. side of the
boiler.
2. Pull the flame monitor from the
burner retainer.
Initial start-up, inspection, maintenance
(cont.)
3. Insert burner retainer A (part of
the cleaning set) into the l.h. side of
the boiler.
4. Undo four nuts from burner B and
remove the burner.
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