Blue Seal E9311, Service Manual

Page: 24 / 50

-24-
Revision 4/F3544
Convection Oven © Moffat Ltd, April 2005
Element faulty / blown
With thermostat in grill or broil position (fully
clockwise), check that the grill indicator on the
control panel indicates. If not, then check the
voltage at terminal P5 on the thermostat
switch (fig 6.4.1). If there is no voltage check
that the switch has power on terminal 5. If
there is power at terminal 5, but not at P5
when thermostat is in grill position, then the
switch is faulty—replace thermostat assembly.
If grill indicator is illuminated, but the top inner
grill element is not functioning, check the
voltage at the top inner element coils at rear
of oven. If the voltage is correct then check
current draw of element. If there is no current
draw then element is faulty—replace.
NOTE: Top inner element current draw:
220—240 V: 7.8A ± 5%
6.1.13 GRILL NOT WORKING
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.
6.1.14 GRILL INDICATOR NOT WORKING
6.1.15 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.
6.1.16 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
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.
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.
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.
From Serial Number 232054:
If no voltage at terminal 4, check the relay
behind the control panel is energised (i.e.
voltage across terminals A and B). If there
is no voltage then check wiring from the
hold switch. If there is voltage then check
that there is voltage at terminal 4 and
terminal 7 of the hold relay. If there is
voltage at 7, but none at 4 (and the relay is
energised) then relay is faulty - replace. If
no voltage at 7 then check wiring.
Figure 6.1.7
Terminal 4
Terminal 1
Terminal 2
Terminal 5
Terminal 3
Terminal 6
To Serial Number 232053:
If no voltage at terminal 4, then 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.