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10.1 SERVICING THE BURNER UNIT AND GAS ASSEMBLY
Classic and Linear models : Remove the decora-
tive frame/glass facia assembly as described in sec-
tion 8.3. Remove the inner glass panel. Isolate the gas
supply and disconnect the supply pipe at the inlet
restrictor elbow. To remove the outer casing (sides
and top), remove the four retaining screws designat-
ed 'a' in figure 14. Pull the casing forward slightly and
then lift the entire casing assembly upwards and
remove. Remove the control knob and spindle
assembly from the valve by removal of the spindle
retaining clip. Undo and remove the four screws
from the burner mounting points (designated 'b' in
figure 14). The burner may now be removed.
Fab models : Remove the decorative frame/glass
facia assembly as described in section 8.3. Remove
the inner glass panel. Detach the burner front cover
plate by removal of the four retaining screws (as
shown in figure 10, section 8.2). Isolate the gas sup-
ply and disconnect the supply pipe at the inlet restrictor elbow.
To remove the burner it is only necessary to remove the right hand side panel. To remove
the right hand casing side panel, remove the two screws shown in figure 15, then pull the
right hand side forward and then sideways. The same method is used should it be neces-
sary to remove the left hand panel. Remove the control knob and spindle assembly from
the valve by removal of the spindle retaining clip. Undo and remove the four screws from
the burner mounting points (designated 'b' in figure 14). The burner may now be removed.
All models : Remove the pilot and main burner pipes and blow through to dislodge any
debris. Now remove the restrictor elbow and blow through to make sure it is entirely
clear. Unclip the pilot lint gauze and clean with a soft brush. 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 can be removed if required by
disconnecting the electrode HT lead, gas pipe and unscrewing the mounting screws and
lifting away.
The pilot assembly is a non-serviceable item and should not be taken apart. Aeration holes
must be absolutely clear internally for proper operation. NEVER MODIFY OR BEND
THE THERMOCOUPLE TO MAKE THE PILOT STAY ALIGHT. Modifications are
dangerous and can have serious unseen effects on safety. If the pilot will not stay lit there
is a problem with dirt, the gas supply to it, or the thermocouple needs replacement.
The gas valve is a non-serviceable item. If this needs replacement, remove M4 securing screw holding the valve in place, remove
all pipe unions, electrode lead, thermocouple lead and then the complete valve. Replacement must be original manufacturers parts.
Reassembly is the reverse of removal. Ensure setting pressures are as stated in Section 2; Appliance Data.
10.2 PILOT ASSEMBLY
Remove the burner unit as detailed in section 10.1, then remove the lint arrestor and pilot unit by using a screwdriver to remove
the retaining screws. Clean the pilot assembly with a soft brush and blow through. Check the aeration holes are free of any dirt
or lint. Clean thoroughly internally, the connection can be removed from the base of the pilot unit using two spanners to make
cleaning easier. Do not damage or try to dismantle the pilot injector.
The unit is factory set and the only check necessary is to ensure the spark gap is correct. See specifications for gap setting.
NEVER MODIFY OR BEND THE THERMOCOUPLE TO MAKE THE PILOT STAY ALIGHT. If the pilot will not stay
lit there is a problem with dirt, the gas supply, or the thermocouple needs replacement. Modifications are dangerous and can have
a serious unseen effect on safety and therefore MUST not be done. Replacements must be original manufacturers parts. Re-assem-
bly is the reverse of removal. Ensure setting pressures are as stated in Section 2; Appliance Data.
It is recommended that the catalysts are inspected for signs of damage and dirt during routine servicing procedures. The expect-
ed life of the catalysts is in excess of 11,000 hours (10 years of normal use). After this time the catalysts should be replaced.
'a'
'b'
'b'
'a'
Figure 14
9
GB IE
'a'
'b'
'b'
Figure 15
©
2012 Smeg (UK) Ltd.
'a'
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