Blue Seal E9311, Руководство по обслуживанию

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Revision 4/F3544
Convection Oven © Moffat Ltd, April 2005
Element faulty
Remove red wire from terminal 4, black wire
from terminal 1 and remove two terminal links.
Check element coil resistances are correct.
6.1.18 HOB ELEMENT DOES NOT WORK
Terminals
1—4
Terminals
2—4
Terminals
2—3
1500 W 68 ohms 200 ohms 100 ohms
2000 W 61 ohms 169 ohms 61 ohms
An open circuit indicates faulty element coil—
replace element.
If above readings are correct check insulation
resistance of each element coil by checking
each element terminal to earth / ground or
conduct megger or dielectric withstand test on
element. A short to earth / ground indicates
faulty element—replace.
If element passes above tests then check
wiring.
Energy regulator faulty
Ensure that the energy regulator fitted is
correct type: NZC Model TC108 15A 240V ac.
Check voltage to terminal 5. If no voltage
check wiring.
Check for continuity from terminals N to
neutral on supply terminal block. If no neutral
supply, check wiring.
With switch in ‘off’ position there should be no
voltage at terminal 2 (open circuit between
terminal 5 and terminal 2). With control set to
a LO to HI heat setting terminal 2 should be
switched on. If not energy regulator is
faulty—replace.
With switch in ‘off’ position there should be no
voltage at terminal 3 (open circuit between
terminal 5 and terminal 3). With control set to
a LO to HI heat setting terminal 3 should be
switched on. If not energy regulator is
faulty—replace.
Above checks can be made with or without
electrical supply switched on, however with
electrical supply on, the terminal 3 element
supply will cycle on / off at different time
ranges dependent on control setting.
To check for correct energy regulator on / off
cycling, electrical supply needs to be on.
With control set to full on (HI) position,
terminal 3 (power to element) should be on
continuously. With control set to position 5
terminal 3 (power to element) should cycle on
for approximately eight seconds and off for
approximately 12 seconds.
Lower settings will give longer off times and
shorter on times, whilst higher settings will
give shorter off times and longer on times.
6.1.19 HOB HEAT NOT CONTROLLED
CORRECTLY
Element temperature limiter tripped
Each of the hot plate elements has an inbuilt
non-serviceable temperature limiter.
If the element is set to a high heat setting with
no cooking pan on the element, or if the
element has an unsuitable pan (refer
operating instructions) that does not allow the
element to dissipate it’s heat, the inbuilt
temperature limiter will turn off one of the
heating coils in the element to prevent the
element from overheating.
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.
6.1.17 HOLDING TEMPERATURE
INCORRECT