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BURNER HEAD CLEANING
1. Check the burner head for any signs of damage or
degrading.
2. Examine the condition of the electrodes and that they
are not damaged or loose. Do they need cleaning? (See
Fig. 20).
3. Inspect all gaskets. If necessary, replace them, but
always with the correct type.
4. Check that all electrical connections and cables are
sound, undamaged and have not worked loose.
5. Clean the combustion air fan.
6. Refit all parts, ensuring they are correctly fitted.
7. Refit burner, using a new mounting gasket. Check for
gas soundness and electrical safety before switching
on.
8. Check combustion levels. (8.2%-9.9% CO
See Combustion Air (Page 37).
AIR
INTAKE
COVER
).
2
FIG. 19
FIG. 20
36
Burner Servicing
BURNER
PULL
DESN 512341
DESN 512471
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