Operation Manual
3.
Check that the DHW filter is not blocked.
4.
Check that the flue terminal is unobstructed and that the flue system is sealed
correctly.
5.
Remove the fan and burner assembly. Inspect, and if necessary, clean the
main burner using a soft brush
or
vacuum cleaner. Do not use a wire brush or
any abrasive materials.
6.
Remove ignition and ionization electrodes. Inspect and clean as necessary
using a soft brush. If either
of
the electrodes show signs
of
damage or wear,
replace the electrode and its gasket. Measure electrode separation as below:
7.
Remove the fan and burner assembly. Inspect the inside
of
the combustion
chamber and if necessary clean the inside
of
the tubes with a soft brush. Do
not brush the insulation at the rear, check the combustion chamber insulation
panels for damage and replace
if
necessary
a.
Remove the burner injector/gas restrictor.lnspect the injector for blockage
or
damage and clean/replace as necessary.
9. Remove the condensate trap bottom cleaning nut. Drain/clean as necessary
Important
Notes:
In
order to carry out servicing or replacement
of
parts the boiler front panel and
sealing panel must be removed, care must be taken to refit and seal correctly.
After completing the servicing
or
exchange
of
gas components, always test for gas
soundness
of
any disturbed joints or test points by means
of
a tightness test
or
leak
detection fluid as appropriate.
When work is complete the boiler front panel
& sealing panel must be replaced,
ensuring a good seal is made.
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