3 .3 Checks during and after initial start-up
Once the boiler has started up, make sure that it shuts
down and re-starts properly too when:
− The central heating temperature setpoint is
changed (see page 60).
− The control panel is switched OFF .
− The room thermostat or timer setting is changed
Make sure that all the pumps in the system are free and
rotate in the right direction. .
Turn the main power switch OFF and make sure that the
boiler shuts down completely.
9
Clean the condensate drain siphon (see page 111).
Provided all the above conditions are satisfied, start the
boiler up again, then analyse the combustion fumes.
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THECNICAL ASSISTANCE SERVICE