Stovax Logic Hotbox & Convector Fire - Manual (Page 21)

SERVICING INSTRUCTIONS
REPLACING PARTS
1. GENERAL
2. IGNITION LEAD
3. PIEZO
4. ODS PILOT UNIT
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In order to service any of the following parts on the
appliance, it will be necessary to remove the burner unit
from the firebox. To remove the burner unit proceed as
follows.
1.1 Turn off the gas supply at the isolation device located under
the appliance.
1.2 Disconnect the gas supply pipe leaving the isolation device
on the supply pipe and not the appliance.
1.3 Remove the loose coals or pebbles and place on a dry clean
surface.
1.4 Remove the decorative frame, fret and ash cover. There are
two screws securing the frame to the appliance. Refer to
frame instructions.
1.5 Remove the front coal, flame baffle and all the ceramic liners.
All these items are very fragile so store them carefully.
1.6 Remove the six screws securing the burner unit to the fire
firebox. See diagram 1.
1.7 The burner unit can now be removed.
2.1 Remove the fire. Refer to section 1.
2.2 Undo the single screw that secures the left hand side of the
control cover. See diagram 2.
2.3 To release the right hand side of the control cover insert the
narrow blade screwdriver into the slot shown in diagram 3,
lever it gently and pull from the right hand side at the same
time. The cover will now come off, there is a small
cylindrical metal spacer inside the cover, this must be kept
and replaced on the fixing screw during re-assembly.
2.4 Disconnect the ignition lead from the gas valve and the pilot.
See diagram 4 arrow A.
2.5 Replace with a new ignition lead following the same route as
the old one. Replace the valve cover and the pilot assembly.
2.6 Check the operation of the new ignition lead.
2.7 Replace the fret.
3.1 The piezo assembly used on this appliance is not serviceable
and is unlikely to fail. If a new piezo is required it will be
necessary to change the gas valve, refer to section 5.
Note: The pilot unit on the appliance is a non serviceable
unit due to the complex nature of its manufacture.
Replacement of the complete unit must be carried out when
one of the following items becomes faulty:
Pilot injector
Ignition electrode
Thermocouple
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4