INSPECTION AIR INTAKE AND VENTURA

Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4

Remove air intake manifold and fan venturi
Note.
1. Fan venturi is located in the fan inlet, turn anticlockwise & pull to remove
2. Gas valve may require removing

Observation:

vm vitodens 25 kw combi inner case top .jpg

vm vitodens 25 kw combi j27455 fan venturi insitu .jpg

vm vitodens 25 kw combi j27459 air intake.gif

Inspect the fan air intake and venturi for blockages and/or restrictions.

Air intake

Venturi

Note.
If inspections are clear of blockages & restrictions do not reassemble before next test.