Moffat turbofan E31, Руководство по обслуживанию, Страница: 22 / 44

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Revision 2/F3506
Indicator faulty
Check the voltage across the indicator
terminals. If the voltage is correct then
indicator is faulty—replace.
If there is no voltage then check wiring.
6.1.16 GRILL INDICATOR NOT WORKING
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 5 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.
6.1.17 ROAST TIMER (180 MINUTE) WILL
NOT TIME DOWN
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.
6.1.18 NO HOLD INDICATOR
‘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
Timer faulty
Check the voltage at terminal 3 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 1 of timer. If there is voltage at 1, but
no voltage at terminal 3 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 a cold oven (ie room temperature) check
that the top outer and bottom oven elements
only are heating. Test the voltage across the
bottom element and top element terminals at
the rear of oven. If the voltage is correct then
refer Fault: Bottom element not working
(trouble shooting section).
NOTE: If the main thermostat is set to off
(vertical) position and ‘Roast ‘n Hold’
mode is selected, then only the
bottom element will heat.
If there is no voltage at the element terminals,
check the voltage at terminal 2 (top) of the
hold thermostat at bottom rear of control panel
(fig 6.3.12). If there is no voltage then check
wiring.
If the voltage is correct, and the thermostat is
adjusted above oven temperature, then check
for output voltage at terminal 1 (bottom). If
there is no voltage and the thermostat will not
switch on then the thermostat is faulty—
replace.
If the voltage is correct but the bottom
element is not working then check wiring.
6.1.19 HOLDING TEMPERATURE
INCORRECT
If terminal 4 voltage is correct, check mini
contactor behind control panel is latched to
the ‘1’ position. If contactor is in ‘1’ position
then check wiring.
If contactor is in ‘0’ position when ‘Roast ‘n
Hold’ switch illuminated then check the
voltage across terminals A1 and A2 of mini
contactor (fig 6.1.3). If the voltage is correct
but the contactor in the off (‘0’) position then
the contactor is faulty—replace.
If there is no voltage across A1 and A2 then
check wiring.
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.
Figure 6.1.5
Terminal 4
Terminal 1
Terminal 2
Terminal 5
Terminal 3
Terminal 6
NOTE: Top inner element current draw:
208 V: 8.7A ± 5%
220—240 V: 7.8A ± 5%