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Revision 4/F3576 © Moffat Ltd, December 2004
Microswitch faulty / out of adjustment
Remove the right hand side panel to allow
access to the microswitch. With the
thermostat switched on and door closed,
check voltage to terminal com of microswitch.
If no voltage check wiring to thermostat.
If voltage correct then check voltage at
terminal n.c. If no voltage then manually
activate microswitch by bending the activator
arm. If microswitch cannot be activated then
it is faulty - replace. If the microswitch can be
manually activated then it should be adjusted.
6.1.4 OVEN LIGHTS NOT ILLUMINATING
Light switch faulty
Check voltage to the left hand terminal of the
switch. If there is no voltage, then check
wiring.
With switch depressed, check voltage at right
hand terminal. If there is no voltage, then
replace the switch.
If voltage is correct, then check wiring to light.
NOTE:
Alternately, perform a continuity test
across the terminals with the light
switch depressed.
6.1.5 NO WATER INJECTION / STEAM
Steam switch faulty
Check voltage to the left hand terminal of the
switch. If there is no voltage, then check
wiring.
With switch depressed, check voltage at right
hand terminal. If there is no voltage, then
replace the switch.
If voltage is correct, then check wiring to the
solenoid.
NOTE:
Alternately, perform a continuity test
across the terminals with the steam switch
depressed.
Figure 6.1.1
Microswitch
com
n.c.
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 6.1.7).
6.1.7 60 MINUTE TIMER NO TIME UP
BUZZER
Buzzer faulty
With timer in ‘zero’ position, check the buzzer
at side 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 one) and bottom
connection (terminal two) of timer. If there is
no voltage at terminal one then check wiring.
If no voltage at terminal two then timer is
faulty—replace.
NOTE:
Timer will continue to run
approximately three minutes below zero.
Buzzer and time up indicator will continue until
the timer is manually switched off (to vertical
position).
Fault with water valve
Check voltage supply across the water valve
solenoid coil with the steam switch depressed.
If there is no power supply then check the
control panel steam switch.
If 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.