Glow-worm Flexicom sx - Manual (Page 30)

0020107231_04 - 12/14 - Glow-worm
MAINTENANCE
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Diagram 12.4
Diagram 12.5
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12.1 Servicing
NOTE: If the Combustion CO2, CO/CO2 ratio & Gas rate
checks did not require adjustment then it will not be necessary
to complete a full service.
For routine servicing requirements, remove the front casing
panel, see diagram 13.2, and hinge down the control panel.
Before commencing with a service or replacement of parts.
The boiler should be isolated from the electrical and gas
supplies.
12.2 Spark Electrode
NOTE: If the functional checks did not indicate poor
combustion then it is not necessary to service this
component.
Ease the securing clips away from the sump to release the
retaining catch then push the flue hood up to disengage from
the sump, see diagram 12.4.
To remove, swivel flue hood 90 o and pull down and out, see
diagram 12.4.
Check seal for wear or damage and replace if necessary.
IMPORTANT: Do not allow fixings, nuts, screws, etc. to fall
into the open flue hood sump, use a temporary cover whilst
removing any parts.
Disconnect the spark electrode plug and earth lead. Remove
the two securing screws and withdraw the spark electrode
carefully from the combustion chamber, see diagram 12.5.
Inspect the tips for damage.
Clean away any debris and check the spark gap is 4mm.
Check the electrode gasket for signs of damage and replace if
necessary.