In cases of repeated or continuous shutdown a qualified and competent Gas Installer, should be
called to investigate and rectify the condition causing this and carry out an operational test. Only the
manufacturer’s parts are to be used for replacement
Minimum Clearances around the Boiler
Clearances of 165mm above, 100mm below, 2.5mm at the sides and 450mm at the front of the boiler
casing must be allowed for servicing.
The clearance below the boiler can be reduced to 5mm after installation provided an easily removable
panel is fitted, to enable the consumer to view the system pressure gauge, and to provide the 100mm
clearance required for servicing.
To light the boiler
Refer to Boiler Controls Diagram
CHECK THAT THE ELECTRICITY SUPPLY TO BOILER IS OFF.
Set the mode control knob (A) to ‘off’.
Set the Domestic Hot Water temperature control (B) and Central Heating control knob (C) to ‘max’.
Ensure that all hot water taps are turned off.
Switch ON electricity to the boiler and check that all controls, e.g. boiler mechanical timer “G” and
optional room thermostat, are ON (refer to mechanical 24 hour timer instructions).
Set the mode knob control (A) to winter ( ).
If there is central heating demand or if a hot tap is opened the boiler will ignite showing burner status (E).
Note. In normal operation the “boiler status display” (D) in the Boiler Controls diagram) will show one of
the following codes:
The boiler is in standby mode awaiting either a central heating call or domestic hot water demand.
The boiler has a call for central heating but the appliance has reached the desired temperature set on
The boiler has a call for domestic hot water but the appliance has reached the desired temperature set
on the boiler.
The boiler is operating in central heating mode.
The boiler is operating in domestic hot water mode.
The boiler is operating in pre heat mode.
The water in the central heating circuit is less than 5ºC. If heating is switched on, this display code will
change to “c”. This indicates that the frost stat is in operation.