3.4 FLAME FAILURE THERMOCOUPLE
Undo nuts at pilot assembly and valve body.
Disconnect thermocouple interrupter from terminal block.
3.5 PIEZO IGNITER/SPARK ELECTRODE
The igniter is a piezo spark type. The electrode is mounted upon pilot burner bracket and switch is
adjacent to MFC. The lead has a push on connection at both ends.
3.5.1 Removal of Igniter Switch
Remove igniter lead connection to switch.
Undo fixings that secure switch flange to control compartment and remove device.
Replace in reverse order.
3.5.2 Removal of the Electrode
Remove igniter lead connection from electrode and remove nut located below electrode. Withdraw
electrode downward from pilot burner bracket.
Replace in reverse order.
3.6 THERMOSTATS
The user thermostat is an EGO, snap action control with adjustment of temperature up to continuous boil.
The overheat thermostat is an EGO model with interrupter that will cut burner operation if the pan
overheats
(e.g. - no water in pan)
Note
Manual intervention is required to reset control in event of cut-out.
To Reset Safety Thermostat
Allow pan to cool down.
Remove black plastic safety cover and push reset button. Fill pan with cold water to level mark
Warning: Filling an overheated pan with water is dangerous and may cause damage to pan
structure.
In the event of failure with full pan, replace safety stat.
3.6.1 Removal of Operating Thermostat
Isolate main gas supply and drain cooled water from pan.
Remove control knob from user thermostat and undo fixings alongside user thermostat spindle.
Undo control panel fixings. Follow thermostat phial capillary tube to pan boss in front wall and undo
small compression nut that seals tube.
Remove phial cover plate from inside pan and withdraw thermostat phial. Disconnect thermostat
electrical connections prior to removing thermostat.
Replace in reverse order.
3.6.2 Recalibration of User Thermostat
Remove knob from thermostat spindle taking care not to rotate it in either direction as this would change
setting. Steady spindle and rotate calibration screw clockwise to decrease and anti-clockwise to increase
the temperature.
3.6.3 Checking the User Thermostat Calibration
Using a reliable thermometer immersed 25mm below water surface at pan centre. Measure water
temperature when a steady condition has been established.
It is important that calibration is set to guarantee continuous boiling at top end.
3.6.4 Replacement of Safety Thermostat
Isolate gas supply and drain cooled water from pan. Undo fixings that secure safety thermostat to
bracket.
