10
TO LIGHT AND STOP THE
APPLIANCE
INDICATOR LIGHTS
Boiler demand :
System is calling for heat
Burner ON
:
Burner is firing
Lock-out
:
There is a fault condition
Steady light - Overheat
Flashing light - Flame failure
TO LIGHT THE APPLIANCE
Check that the water valves to the central heating circuit are open.
Check that the needle on the pressure gauge is not below the
required pressure - sealed system only.
Switch on the mains electricity. Set the room thermostat, if
fitted, to maximum. Turn the boiler temperature control knob fully
clockwise to the maximum position. The burner will light. Set the
boiler temperature control knob and the room thermostat/cylinder
thermostat, if fitted, to the desired temperature.
TO STOP THE APPLIANCE
For Short Periods
Turn the boiler temperature control knob fully anti-clockwise to
the 'O' position.
For Long Periods
Turn the boiler temperature control knob switch to the 'O'
position. Switch off the mains electricity.
Any programmer will require resetting if mains supply has been
disconnected.
ELECTRICITY SUPPLY
FAILURE
If the electricity supply fails the appliance will not operate.
Once the supply is restored the appliance will return to normal
operation.
Check that the settings of any programmer or time control
have been maintained.