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10
Initial Lighting
Remove the cover plate, see diagram 3.
Check that the gas service cock, on the appliance, is open.
Note:
If you are in any doubt about the boiler being filled
with water contact your installer or Glow-worm's own service
organisation using the telephone number on the inside front
cover of this booklet.
Do not operate the boiler without water.
1.
With no demand from any external controls, switch on the
electrical supply to the boiler.
Lighting the Boiler
13475
Diagram 4
2.
Select your required function, refer to diagram 2, press
"MODE" repeatedly to scroll through your options and select
one of the following:-
Central heating.
Boiler functions ALL switched off.
3.
Turn ON your external controls and select the room
temperature required.
The boiler will operate automatically.
Note:
The display will indicate the Heating system water
temperature or a fault code (see section Fault Finding).
GAS SERVICE
COCK
(shown open)
COVER PLATE
13540
Diagram 3
