Glow-worm Xtramax - Manual (Page 6)

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Diagram 1
9084
1 - On/Off button
2 - Summer/Winter mode selector
3 - Hot water temperature adjuster
4 - Hot water set point display (must be set at maximum) 5 - Graphic display
6 - Heating temperature adjuster
7 - Heating set point display
8 - Display backlight
Operating the Appliance
Controls
The control panel, located at the lower front of the boiler casing,
see diagram 1, allows the boiler to be started, shut down,
controlled and monitored during use.
The appliance incorporates a visual display that indicates fault
conditions, should they occur.
In the event of a fault, the display will indicate, by means of
pictograms and/or letters and numbers, exactly in which area
the fault lies.
Should the boiler fail to operate, the most likely fault is that the
gas supply to the boiler has not been turned on or that there is
no pressure in the heating system. These are indicated as
follows :
Other faults
These are indicated on the display by a fault code and a
telephone symbol. Further information on the fault codes can be
found in the 'Section 18 Fault Finding'.
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This will be indicated on the
display as a pictogram of a
spark. To rectify this, proceed
as follows:
No gas supply
• Switch off the boiler at the On/Off
push button.
• Rectify the gas supply problem.
• Restart the boiler by pressing the
On/Off button.
Insufficient system pressure
This will be indicated on the
display as a flashing warning
indicating the system pressure
is low. To rectify this the system
must be re-filled, refer to
'Section 13 Commissioning'.