● Inspect the tips for damage.
● Clean away any debris and check the spark gap is 3.5 -4.5 mm.
● Check the electrode gasket for signs of damage and replace if necessary.
Fig. 8.4 Gas service cock
8.1.6 Removing the burner
NOTE:
If the functional checks did not indicate poor combustion then it is not necessary to
service the burner.
CAUTION:
The burner door seal and combustion chamber burner door securing nuts on the burner
module, see fig. 8.6 and 8.7 must be replaced each time the module is removed for
example during maintenance if the burner flange insulation shows any signs of damage
or small cracks it must also be replaced. >Isolate the gas supply at the gas service cock.
Disconnect the gas supply at the gas service cock.
Fig. 8.5 Gas service cock
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