16
Carefully withdraw the catalyst vent panel and examine the condition of the two catalysts both
from the top and from inside the unit. If any damage or cracking of the catalysts is evident, replace.
DO NOT ALLOW THIS APPLIANCE TO BE OPERATED WITH DEFECTIVE CATALYSTS.
Carefully remove the ceramic fuel bed components. These components are extremely fragile.
Examine the condition and check for signs of damage or cracking.
Replace if necessary.
Clean these
components with a soft brush and / or vacuum with brush attachment to prevent dust spread.
Examine the condition, and check for cracking of the back panel and side cheeks of the
combustion chamber surround.
Replace if necessary.
NOTE - Unless replacing component parts, it is not necessary to remove the burner control system
from the appliance, as all components are serviceable without the need for further dismantling.
Undo the gas supply pipe at 8 mm compression fitting at the gas inlet pressure test point elbow.
Remove the two screws from the rear log retaining platform and slide out the complete burner and
control assembly (Fig. 4)
Remove the four retaining screws of the front log / glass locating platform and withdraw. This
allows total access to the burner and control components (Fig. 12)
Examine the tubular burner for any signs of damage.
Replace if necessary.
Ensure all ports
particularly the ladder ports from opposite the pilot assembly are clear of dust and debris. Clean
using only a soft brush and vacuum with brush attachment. Ensure the large aeration ports in the
injector end of the burner are dust free and clear.
The main burner injector of this appliance should not normally require attention unless there is
evidence of particular flame reduction or excessive dust and debris within the aeration ports of the
burner. If examination is necessary, return to point No. 9 and refer to parts replacement section
13. The end of the injector is ceramic and under no circumstances should the ports be cleared
using wire or any hard instrument.
Examine the pilot assembly and clear of any dust or debris using a soft brush. Ensure the aeration
hole is clear. Check the condition of the thermocouple and the ceramic spark electrode and wire
for any damage or deterioration. If there are any signs of damage the full pilot assembly will need
replacing.
Replace if necessary.
NOTE -
There is a highly sensitive oxygen depletion sensor designed into the pilot assembly. If any
part of the assembly is damaged the entire unit must be replaced. Do not attempt to bend or alter
the flame head, thermocouple or aeration hole. Use only genuine spare parts as similar looking
parts from other appliances may well give different or inferior performance and could lead to a
hazard.
Check the condition of the spark ignition lead ensuring both ends are securely connected.
Replace
if necessary.
Check that all wiring and plug connections to the control unit, gas valve motor, battery, remote
sensor and control switches are secure and in good condition.
Check that the thermostat bulb is correctly located and the coil is not kinked or damaged.
Replace
if necessary.
Re-assemble all removed components in reverse order and carry out a commissioning procedure
as detailed in section
