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disconnect the heat exchanger outlet pipe
from the hydraulic assembly.
Using pliers remove the filter. Clean it as
required.
Refit in reverse order.
4.7.2 Burner
inspection
– IAccess the burner as described in 6.3.
Using a soft brush, clean the burner of
debris.
4.7.3 Combustion
Chamber
Remove any loose debris from the combu-
stion chamber using a soft brush and a
vacuum cleaner.
Take care not to damage the rear insula-
tion panel.
4.7.4 Condensate
Trap
The condensate trap would not normally
require removal during service, but can be
checked , by carefully pouring water into
the inner flue. Great care must be taken to
avoid water entering the outer flue.
Check that the water flows freely to the
drain.
Should it require removal, firstly disconnect
the level sensor, then remove the clip secu-
ring the condensate drain pipe. Remove the
condensate trap from its fixing bracket.
Clean and refit in reverse order.
Ensure that the trap is filled before allowing
the boiler to operate.
4.7.5 Gas
pressure
test
Check the gas pressures as described in
4.2.2.
