Fault finding, Filling central heating system – Glowworm Lighting ULTRACOM CXI User Manual

Page 15

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Double Check

Inlet V

alve

LVES SHOWN CLOSED

Appliance fails to light

The LCD will display a flashing 'F' and code number, press

the reset button on the control panel, see diagram 2.

If the display shows a flashing pressure of 0.4bar or less,

then you will need to pressurise the system as described

below.

If any fault persists, contact your installer/service provider

or Glow-worm Service, using the telephone number on the

inside front cover of this booklet.

Filling Central Heating System

Remove the cover plate, see diagram 8.

1. Ensure that the filling loop flexible hose is securely

connected to the double check inlet valve, see diagram 9.

Fault Finding

Diagram 9

13470

2. Fully open tap "A", then gradually open tap "B" to fill the

heating system to a pressure of 1.0bar. When completed

close the filling taps.

3.
IMPORTANT:

To comply with the water regulations the

flexible hose must be disconnected from the double check

inlet valve - undo the nut and pull the flexible hose from the

valve.

Electrical Supply Failure

The boiler will not work without an electrical supply and

normal operation of the boiler should resume when the

electrical supply is restored.

If the boiler does not resume normal operation, check the

external controls, it may be necessary, to "reset" the boiler,

refer to the section, "Boiler Safety Devices".

COVER PLA

Diagram 8

13539