DISMANTLING THE BURNER TRAY
Remove the tray as previously described. The pilot unit can be removed by undoing the tubing
nut, the thermocouple nut on the rear of the valve, lint arrestor, two securing screws, and lifting
away. Remove the tubing nut from the valve end of the pilot pipe, and blow through to dislodge
any debris that may be present. Clean the exterior of the pilot assembly with a soft brush and
blow through the flame ports on the pilot head. Check the aeration holes are free from lint or dirt.
The pilot assembly is a non-serviceable item, and should not be taken apart. The aeration hole
must be absolutely clear internally for proper operation. A thoroughly cleaned (inside and out)
oxypilot will cure a wide range of ignition faults.
Remove the two tubing nuts on the ends of the gas pipe to the injector elbow. Release the screw
through the supporting leg and lift assembly clear. The injector pipe can now be checked for
debris. Remove the nut retaining the injector elbow. Blow through the elbow to remove any
debris.
The valve is not field serviceable, apart from the pilot filter. Remove the control knob by pulling
it forwards, then remove the largest of the three screws on the face of the valve. Slide the filter
out and clean away any debris that may have accumulated. The filter element should also be
blown clean. This component should not require replacement, however if signs of deterioration
are evident then a genuine spare must be used. If a large amount of debris is present in the fil-
ter then the pipework and control should be thoroughly cleaned before re-assembly.
TROUBLESHOOTING GUIDE
Fire sparks but pilot does not light
No gas to fire, check isolators are open.
Pipework blockage, clean out.
Air not fully purged, re-purge supply or wait longer.
Spark earthing to metal work, reset gap correctly.
Blocked pilot, clean out internally.
Pilot lights but then goes out
Severe restriction in gas supply, clear obstruction.
Faulty thermocouple, replace pilot unit.
Hold control knob in for longer.
Fire does not spark at pilot
HT lead detached, refit.
Spark gap too large or small, reset correctly.
Faulty piezo unit, replace.
Debris shorting out electrode, clean.
Fire runs for a time and then cuts off
Excessive room draught or flue pull, rectify.
Loose or faulty thermocouple, rectify.
ODS system in operation.
Firebox grommet seal not fitted, rectify.
Lint in pilot aeration hole, clean thoroughly internally
Pilot flame shrinks
Poor gas flow to fire, check pressure with fire on high.
when fire is on high
If pressure is low, remove any restriction in pipework or valve.
Check all isolators are adequately sized and fully open.
Check meter pressure is adequate.
Air leak under base of firebox, rectify.
Lint in pilot aeration hole, clean thoroughly internally.
Fire smells when first lit or in use
Newness smell from brand new appliance.
Spillage occurring. Carry out spillage test and rectify any problems.
Low temperature sealants or combustible materials used in
incorrect positions.
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18.2
©
2009 Focal Point Fires plc.
