-18-
Revision 1/F3563
6.1.8 NO TEMPERATURE CONTROL
Thermostat faulty
With thermostat in ‘off’ position (knob vertical),
slowly turn thermostat up until heating
indicator just comes on. Wait for heating
indicator to cycle off. If indicator has not
cycled off after 10 minutes then thermostat is
faulty—replace.
NOTE:
E27 thermostat may cycle on and off
with the knob set to the ‘off’ position if the
oven temperature is below 20°C.
Heating relay faulty
With power switch off on control panel, check
for voltage at terminal 4 of heating relay. If
there is voltage then the heating relay is
faulty—replace.
6.1.9 SLOW RECOVERY
Thermostat out of calibration
Place an accurate digital thermometer probe
in centre of oven. Set thermostat to 180°C or
355°F. Close the oven door and allow oven
thermostat to cycle on and off twice. Record
oven centre temperature for the next
thermostat on and off cycle. The thermostat
should cycle on and off between 165°C and
195°C or 330°F and 385°F when set to the
above temperature. If oven temperature is
outside these ranges, then the thermostat
requires recalibration.
NOTE:
Thermostat cycling span should be
±15°C or 27°F
Indicator faulty
With the thermostat on and heating, check the
voltage across the indicator terminals. If the
voltage is correct then the indicator is faulty—
replace.
If there is no voltage then check wiring.
6.1.10 NO THERMOSTAT HEATING
INDICATOR
Thermostat faulty
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal 1 on the thermostat. If
there is no voltage (and there is voltage at
terminal P) then the thermostat is faulty—
replace.
If the voltage is correct and the heating light is
on then check all wiring to elements.
Fan element faulty (blown)
With the thermostat on and heating check
voltage across fan element terminals at rear
of oven. If the voltage is correct then check
the current draw of element. If there is no
current draw then element is faulty—replace.
NOTE:
Correct fan element current draw:
E27 208-220 V: 13.4A ± 1.5A
E27 230-240 V: 12.1A ± 1.5A
Figure 6.3.10
Element
Wires
Heating power relay faulty
Set thermostat to 200°C or 400°F. With door
closed, check voltage from terminal B to
terminal A of heating relay. If no voltage
check wiring. Check voltage to terminal 6. If
voltage at terminal 6 but no voltage at terminal
4 then the relay is faulty - replace.
