
IS 594 ECN 4699 Page 18 of 23
Thread the thermostat phial back through the grommets until the point that it enters
the wiring channel, which runs from the rear to the front of the appliance. Remove
the top cover of the wiring channel.
Working now from the front of the appliance, remove the control knobs. Carefully
remove the facia panel (which is held by screws along its bottom edge) keeping all
wiring intact. To change a control thermostat, remove from control panel, pulling
the pump switch off the control thermostat if necessary. Disconnect the cables and
remove the control thermostat from the facia. To change a safety thermostat,
unscrew the body of the thermostat from beneath, adjacent to where the red reset
button locates through the floor of the control panel. In both cases, then withdraw
the capillary and phial of the thermostat forward and out of the body of the
appliance.
Replacement of a thermostat is by reversal of the above procedure. Protection and
routing of the thermostat phial and capillary is essential to the correct performance
of the appliance, therefore ensure that the capillary is replaced exactly as fitted in
the factory, passing through all the relevant grommets (Fig 12 DD). Ensure it
moves freely up and down as indicated by the arrows in Fig 12 when the element is
in both the raised and lowered position and do not fit any cable ties that will restrict
movement. Finally, re-fit all the covers.
Contactor
Remove the rear panel, unclip the contactor.
Transfer the cables from the old contactor to the new contactor.
Clip in the new contactor and refit the rear panel.
Transformer
Remove the rear panel, unscrew the bracket holding the transformer.
Transfer the cables from the old transformer to the new transformer.
Refit the new transformer in the brackets and refit the rear panel.
Element microswitch
Remove the rear panel, undo the bracket holding the safety cutout switch.
Transfer the cables from the old switch to the new switch.
Refit the bracket and switch and refit the rear panel.
Element
Drain the tank of oil. Remove the splashguard by turning the knurled knobs
anticlockwise and lifting the cover up off the keyholes. Remove the rear panel.
Unclamp the clip holding the swivel cover and remove the swivel cover by lifting it
up off the support rod and taking out through the front of the flue. Unclip the
capillary cover from the element support by pushing up and back until it clears the
hooks. Lift the capillary cover away from the element support. Undo the thermostat
phial bracket and remove the thermostat phials. Disconnect the element cables
and undo the elements retaining nuts. Lift the element up and forward, removing it
through the front of the flue.
Refit the new element by reversing the above procedure, ensuring that the element
spacer plates are correctly in place, and the internal earth connection is remade on
one of the element terminals. Check that the capillary moves freely.