13 Servicing
Diagram 13.6
13266
Diagram 13.4
13515
Diagram 13.5
13518
13.2 Spark Electrode
Disconnect the spark electrode plug and earth lead, see
diagram 13.5. Remove the two securing screws and withdraw
the spark electrode carefully from the combustion chamber,
see diagram 13.4.
Inspect the tips for damage.
Clean away any debris and check the spark gap is 3.5 to 4.5
mm.
Check the electrode gasket for signs of damage and replace
if necessary.
13.3 Burner
NOTE:
● The following procedure will require that you replace the
burner door seal and nyloc nuts.
● Removal of the burner is not necessary during a normal
service, but if it is removed it will require a new gasket, see
diagram 13.6.
● When replacing ensure that the sealing grommet, situated
below the gas valve is correctly re-seated.
Disconnect the gas valve electrical plug at the gas valve, see
diagram 13.5.
Disconnect the electrical plug from the fan.
Disconnect the spark electrode plug and earth lead, refer to
diagram 13.5.
Remove the gas pipe retaining clip.
Remove the ve combustion chamber/burner door securing
nuts, see diagram 13.7, these should be discarded and
replaced with the new nylocs nuts supplied in the burner door
seal kit.
Gently remove the fan, gas valve and burner assembly from
the combustion chamber.
Clean the burner with a soft brush taking great care not to
damage the front insulation. DO NOT use wire or sharp
instruments to clean the holes of the burner.
Inspect the burner for any signs of damage.
Remove and discard the burner door seal and replace with
new, see diagram 13.7.
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