37mm
17.5mm
d) Disconnect the thermocouple nut.
e) Undo the pilot supply pipe on the ignition flame
supply pipe.
f) Undo the fixings which secure the control fixing
plate tothe bracket.
g) Remove the fixing plate from the old control and
secure it tothe replacement.
h) Replace all parts in reverse order.
3.4.5 Solid Top Thermocouple (G1006X)
a) Remove bullseye rings and hob fillings.
b) Undo the thermocouple to FFD nut.
c) Undo the locknuts which secure the thermocouple
head tothe angle bracket. Withdraw the
thermocouple.
d)Replace in reverse order. Position the
thermocouple head as shown in Figure 9.
Figure 9
3.5 OVEN PIEZO UNIT REMOVAL
a) Open the bottom front panel.
b) Remove the fixings which secure the piezo unit
bracket tothe base plate. Partly withdraw the piezo
unit and pull off the igniter lead.
c) Remove the old piezo unit from the fixing bracket
and fit the replacement.
d) Attach the igniter lead on to replacement piezo
before positioning.
e) Replace the panel in reverse order.
3.6 REMOVAL OF OVEN SPARK ELECTRODE
a) Open the bottom front panel.
b) Remove the thermocouple. See Section 3.4.3.
c) Undothe nut which secures the electrode lead.
d) Undothe gland nut which secures the electrode to
the pilot assembly. Withdraw the electrode.
e) Replace in reverse order and ensure that the
thermocouple head is correctly positioned as
Section 3.4.3. The electrode conductor terminal is
clear of any adjacent metal parts.
3.7 THERMOSTAT
3.7.1 Oven Control Thermostat
a) Remove the vertical control panel and RH outer
panel. (see Sections 3.2.3 and 3.2.1.)
b) Undo the inlet and outlet pipes compression nuts.
c) Remove the fixings which secure the right angled
bracket tothe Z bracket.
d) Open the oven door and release the phial by
removing the clips which secure it to the roof baffle.
e) Gently pull the phial and capillary tube through the
oven side hole and withdraw the thermostat.
f) Remove the right angled bracket from the existing
thermostat and replace it on the new one.
g) Replace all parts in reverse order and check the
gas joints for soundness.
3.7.2 To Check and Adjust the Thermostat
a) Remove control panel as detailed in Section 3.2.3.
b) Replace the knob and turn to the 200
o
C position.
This should be the temperature at this setting.
c) Place a temperature measuring device at the
geometric oven centre and light the oven.
d) Allow the oven to heat up for 30 minutes. Observe
that the temperature is steady. Compare the value
obtained with the required value of 200
o
C.
Example - Oven at 190
o
C.
Action
Turn the knob to a higher setting until a temperature
of 200
o
C+/-5
o
C is obtained in the oven. Pull the knob
off without rotating the spindle. Slacken the fixings on
the adjusting flange at the spindle base. Replace the
knob and rotate it back to the 200
o
C setting. Remove
the knob and tighten the adjusting flange fixings.
Finally, check that the temperature remains steady at
the new setting for 200
o
C.
Reverse the action if the oven temperature is found to
be above or below 200
o
C.
e) Replace all parts in reverse order.
3.8 SOLID TOP GAS TAPS and FFD
3.8.1 Replacement Taps for Solid Top Burners
a) Remove control panel as detailed in Section 3.2.4.
b) Remove the solid top fillings.
c) Undo the inlet/outlet pipe compression nuts.
d) Disconnect the thermocouple nut.
e) Undothe pilot supply pipe.
f ) Undo the fixings which secure the control location
plate tothe bracket.
g) Remove the fixing plate from the previous control
and secure tothe replacement.
h) Replace all parts in reverse order.
3.8.2 Gas Taps (Cleaning and Greasing)
Solid Top Burner Taps
a) Remove the top facia panel (see Section 3.2.4).
b) Remove the fixings from the front of the tap body.
Withdraw the spindle and niting arrangement, thus
allowing the plug to be eased out.
