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Revision 4/F3576 © Moffat Ltd, December 2004
6.1.8 60 MINUTE TIMER NO TIME UP
INDICATOR
Indicator faulty
With the timer in the zero position, check for
voltage across the indicator light. If correct,
then the indicator light is faulty—replace.
If there is no voltage then check wiring.
6.1.9 NO TEMPERATURE CONTROL
(TEMPERATURE OVERRUN)
6.1.10 SLOW RECOVERY
Thermostat out of calibration
Place an accurate digital thermometer probe
in centre of oven. Set thermostat to 180°C.
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 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
Indicator faulty
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.
6.1.11 NO THERMOSTAT HEATING
INDICATOR
No power to timer
Check the voltage at terminal 5 on underside
of the 180 minute timer.
Check that one lead of timer motor is
connected to terminal five of timer and the
other lead is connected to neutral of ‘Roast ’n
Hold’ switch.
If voltage at terminal 5 is correct and wiring is
correct then the timer motor is faulty—replace
timer.
6.1.12 ROAST TIMER (180 MINUTE) WILL
NOT TIME DOWN
‘Roast ‘n Hold’ switch faulty
Check if the switch latches. If the switch does
not latch then the switch is faulty—replace.
With the switch latched, check voltage to
terminal 2. If there is no voltage then check
for fault in wiring.
Check voltage to terminal 1. If there is no
voltage then switch is faulty—replace.
NOTE:
When the switch is latched, it should
illuminate if operating correctly.
Indicator faulty
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.
6.1.13 NO HOLD INDICATOR
Timer faulty
NOTE:
Timer in ‘HOLD’ position (vertical) and
‘Roast n Hold’ switch on (illuminated).
Check the voltage at terminal 3 of timer, with
If there is no power at terminal 5, check for
power supply at terminal 4 of timer. If there is
voltage at terminal 4 and not at terminal 5 with
timer set, then timer switch is faulty—replace
timer. If terminal 4 voltage is correct, check
wiring to roast n hold switch.
Figure 6.1.2
Terminal 4
Terminal 1
Terminal 2
Terminal 5
Terminal 3
Terminal 6
Thermostat faulty
Set thermostat to 50°C. Check voltage at
terminal 2 on the thermostat. As the oven
heats up, the thermostat contacts should
open, cutting power to terminal 2 of the
thermostat. If not then the thermostat is faulty
- replace.