-23-
Revision 4/F3544
Convection Oven
© Moffat Ltd, April 2005
Element faulty (blown)
With the thermostat on and heating check
voltage across bottom 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.
Thermostat faulty
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal 2 on the thermostat. If
there is no voltage then the thermostat is
faulty—replace.
If the voltage is correct and the heating light is
on then check all wiring to elements.
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
6.1.10 BOTTOM ELEMENT NOT WORKING
Element faulty / blown
NOTE: In bake mode (50—270°C or 100—
550°F) the outer coil only of the top ele-
ment assembly operates. The inner coil
works only when in grill or broil mode.
With thermostat on and heating check voltage
across top element terminals at rear of oven.
If voltage is correct then check current draw of
the element. If there is no current draw then
the element is faulty—replace.
If there is no voltage check voltage is being
supplied to the top element from terminal 2 on
switch block mounted to front of thermostat.
If voltage is correct then check wiring.
NOTE: Top outer element current draw:
220—240V: 3.5A ± 5%
6.1.11 TOP ELEMENT NOT WORKING (IN
BAKE MODE—NOT GRILL / BROIL)
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.
6.1.12 NO THERMOSTAT HEATING
INDICATOR
If there is no voltage then check voltage is
being supplied to bottom element from
terminal 6 on switch block mounted to the
front of the thermostat (fig 6.4.1). If no
voltage at 6 then check for voltage at terminal
P6. If power to P6 (and none to 6), then the
thermostat is faulty—replace.
NOTE: Correct bottom element current draw:
220—240V: 8.7A ± 5%
Figure 6.1.6
Bottom Element
Terminals
6.1.8 NO TEMPERATURE CONTROL
Thermostat faulty
With thermostat in off (vertical) position, the
heating indicator should be off. If not then the
thermostat is faulty—replace.
Check that the thermostat phial is in correct
location and check for broken capillary tube—
replace if damaged.
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 regain temperature. If the
temperature overshoots by 50°C and
continues, switch off and replace.
NOTE: There should be no voltage across
these terminals when ‘Roast ‘n Hold’
is not selected.
If the indicator is in position ‘1’ with no voltage
across A1 and A2 then the contactor is
faulty—replace.
Contact
Indicator
Terminal A1
Terminal 21
Terminal 22
Terminal A2
Figure 6.1.5
Содержание E9311
Страница 1: ... 1 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 E9311 CONVECTION OVEN RANGE SERVICE MANUAL ...
Страница 4: ... 4 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 ...
Страница 37: ... 37 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 To Serial Number 232053 ...
Страница 39: ... 39 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 To Serial Number 232053 ...
Страница 40: ... 40 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 8 2 COOK TOP HOB ...
Страница 43: ... 43 Revision 4 F3544 Convection Oven Moffat Ltd April 2005 11 PARTS DIAGRAMS 11 1 OVEN MAIN ASSEMBLY 58 ...