-30-
Revision 7/F3527
©
Moffat Ltd, November 2004
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 con-
nected 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.
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 6 with
timer set, then timer switch is faulty—replace
timer.
6.1.14 ROAST TIMER (180 MINUTE) WILL
NOT TIME DOWN
Figure 6.1.5
Terminal 4
Terminal 1
Terminal 2
Terminal 5
Terminal 3
Terminal 6
‘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 across
terminal 1 to terminal 3 or 4. If there is no
voltage then check for fault in wiring.
Check voltage across terminal 2 to terminal 3
or 4. If there is no voltage then switch is
faulty—replace.
NOTE:
When the switch is latched, it should
illuminate if operating correctly.
If terminal 4 voltage is correct, check relay at
the base of the control housing behind control
panel is latched ON. If relay is ON then check
wiring.
If relay is not latched ON when ‘Roast ‘n Hold’
switch illuminated then check the voltage
across terminals 7 and 8 of relay coil (fig
6.1.3). If the voltage is correct but the relay is
in the off position then the relay is faulty—
replace.
If there is no voltage across 7 and 8 then
check wiring.
Indicator faulty
Check the voltage across the indicator termi-
nals. If the voltage is correct then the indica-
tor is faulty—replace.
If there is no voltage then check wiring.
6.1.15 NO HOLD INDICATOR
Timer faulty
NOTE:
Timer in ‘HOLD’ position (vertical) and
‘Roast n Hold’ switch on (illuminated).
Check the voltage at terminal three of timer,
with timer in hold position. If the voltage is
correct then check wiring.
If there is no voltage then check voltage at
terminal one of timer. If there is voltage at
terminal one, but no voltage at terminal three
with timer in hold position then timer switch is
faulty—replace.
Hold thermostat faulty
With the power switch on and illuminated,
‘Roast ‘n Hold’ switch on and illuminated, and
the roast (180 minute) timer set to hold, check
that the hold indicator is illuminated.
With hold thermostat adjusted above oven
temperature, check for output voltage at
terminal 2 of hold thermostat. If there is no
voltage and the hold thermostat will not switch
on then the thermostat is faulty—replace.
If the voltage is correct but the burner is not
working then check wiring and ignition box.
6.1.16 HOLDING TEMPERATURE
INCORRECT
