0020167175_01 - 02/13 - Glow-worm
• To obtain service, please call your installer or Glow-worm’s
own service organisation.
PLEASE NOTE: During routine servicing, and after any
maintenance, we recommend that the following must be checked:
- The integrity of the fl ue system and the fl ue seals,
- The integrity of the boiler combustion circuit and the relevant
seals,
- The operational (working) gas inlet pressure at maximum rate,
- The gas rate,
- The combustion performance.
• See the "Safety instructions" chapter for a list of operations to
be performed prior to the maintenance of the application.
• Once the maintenance operations have been completed,
consult the ¨Start Up¨ chapter to restart the appliance.
17.1 Annual Maintenance
17.1.1 Verifi cation of components
• Check that the fl ow sensor is working properly.
See chapter "Specifi c adjustment > Appliance technical
settings and parameter list > Installation settings" and use
code “d.36”.
• Check that the fan is working properly.
See chapter "Specifi c adjustment > Appliance technical
settings and parameter list > Installation settings" and use
code “d.34”.
• Check that the temperature sensors are working properly.
See chapter "Specifi c adjustment > Appliance technical
settings and parameter list > Installation settings" and use
code “d.3, d.4, d.40, d.41”.
• Check the ionisation quality.
• Check that the thermal fuse protects the appliance against dry
fi re. Disconnect the thermal fuse and check if "F76" fault code
is displayed on the screen.
• Check that the pressure sensor is working properly. The
pressure must be displayed on the screen.
• Check the pressure of the expansion vessel.
17.1.2 Other checks
• Check the CO
2
rate in the fuel and compare with the values
indicated in the chapter "CO
2
Measurement".
• Check that there are no leaks in the joints and the safety
valves.
• Check that there are no gas leaks.
• Verify that the fl ue system is sound and complete.
• Check the appliance’s electrical safety.
17.1.3 Cleaning of the components
• Clean the following components:
- The condensate trap
- The heat exchanger.
- The burner
- The fan
17.1.4 Corrosion and anti-sludge protection
In order to avoid corrosion, the addition of a corrosion inhibiter to
the heating circuit water is recommended. The inhibiter will stop
electrolytic reaction and bacterial growth between the diff erent
metals used in the installation.
It will also avoid the formation of gas which could be produced
following the chemical reactions.
It is especially important to treat the water in underfl oor heating
systems, as low temperatures favour bacterial growth. This can
lead to the formation of sludge, which in turn may block some or
all of the circuits.
In order to add the correct dosage of these products, you must
know the volume of water contained in the installation. It is
recommended that you note down the volume for future needs.
The inhibitors must be compatible with the materials employed in
the installation.
17.2 Casing removing
17.2.1 Front panel
24
V
230
V
2
1
A
A
B
Key
1 Front panel
2 Front panel retaining screw
• Undo the two screws (2) on the underside of the front panel
and remove the front panel (1).
MAINTENANCE
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