Cleaning The Flue Gas Fan And Lambda Probe - Viessmann VITOLIGNO 300-P Service Instructions Manual

Further details regarding the individual steps

Cleaning the flue gas fan and Lambda probe

A
B
6x
1. Undo wingnuts on flue gas fan A
and pull out motor B with impeller.
Note
■ Do not dismantle the impeller.
■ The cables are not long enough to
set the motor down on the floor.
2. Clean impeller with a spatula and
vacuum cleaner.
3. Check impeller for visible damage
and secure seating.
Commissioning, inspection, maintenance
D
C
4. Clean Lambda probe C with a
cleaning brush and vacuum cleaner
and check for damage.
5. Clean condensate trap D (if instal-
led).
6. Reassemble in reverse order. Check
that sealing surfaces are clean.
Note
Installation position of motor B with
cables as shown.
(cont.)
49