Viessmann VITODENS 100-W Manual page 55

Routine Servicing Instructions
1. Remove electrode B.
2. Release the three Torx screws, and
remove thermal insulating ring C.
3. Release the four Torx screws, and
remove burner gauze assembly D
with its gasket E.
Checking and adjusting the ignition and ionisation electro-
des
A Ignition and ionisation electrode
1. Check the electrode for wear and
contamination.
Service Instructions
(Fortsetzung)
4. Insert and secure a new burner
gauze assembly D with a new
gasket E.
5. Refit the thermal insulation ring C.
6. Refit the electrode B.
2. Clean the electrode with a small
brush (not with a wire brush) or
emery paper.
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