-20-
Revision 2/F3506
Check voltage to the bottom terminal of the
switch. If there is no voltage, then check
wiring.
With switch depressed, check for voltage at
top terminal. If there is no voltage then
replace switch. If voltage correct, check wir-
ing to solenoid coil.
If the power supply to the coil is correct,
disconnect wiring to coil and check the
resistance of the coil windings.
Correct coil resistance: 2500 ohms
NOTE:
If open circuit / high resistance, then
the coil is faulty—replace.
If coil resistance is correct, rewire and listen
for an audible solenoid click when the steam
switch is depressed.
If solenoid can be heard functioning, and oven
water nozzle is not blocked, then remove
water solenoid and fittings and check for
blockages.
6.1.6 CONTINUOUS WATER OUT OF OVEN
WATER NOZZLE
Water solenoid electrical fault
With control panel steam switch not
depressed, check for power supply across
solenoid coil. If there is power to the coil, then
check wiring and steam switch (refer 6.1.5).
6.1.7 60 MINUTE TIMER NO TIME UP
BUZZER
Buzzer faulty
With timer in ‘zero’ position, check the buzzer
at top of control panel (inside) for voltage
across terminals. If voltage is correct then
buzzer is faulty—replace.
If there is no voltage, then check wiring.
Timer not switching on buzzer
With timer in zero position, check voltage to
top connection (terminal 1) and bottom
connection (terminal 2) of timer. If there is no
voltage at terminal 1 then check wiring.
6.1.9 NO HEAT
No power to thermostat
Check voltage to terminal 1 on oven
thermostat. If there is no voltage then check
voltage through terminal 21 and 22 on mini
contactor (inside control panel). If there is no
voltage to terminal 21 then check wiring. If
there is no voltage to terminal 22 then check
that the contact indicator on centre of the
contactor is in ‘0’ position. If indicator is in ‘0’
position and there is no voltage to 21 then
replace contactor.
6.1.8 60 MINUTE TIMER NO TIME UP
INDICATOR
Indicator faulty
With the timer in the zero position, check for
voltage across the indicator light. If correct,
then the indicator light is faulty—replace.
If there is no voltage then check wiring.
Thermostat faulty
Set thermostat to 200°C or 400°F. Check the
voltage out of terminal two 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.
Buzzer
Buzzer Terminals
Figure 6.1.2
If indicator is in the ‘1’ position then check the
voltage across contactor coil terminals A1 and
A2.
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 6.1.3
If no voltage at terminal 2 then timer is
faulty—replace.
NOTE:
Timer will continue to run for
approximately three minutes below
zero. Buzzer and time up indicator
will continue until the timer manually
switched off (to vertical position).