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MODEL 300 RESTAURANT RANGES TROUBLESHOOTING
OPERATOR’S MANUAL 1182298 REV 3 PAGE 39
TROUBLESHOOTING
Refer to schematic P/N’s:
1181101 for 120V,
1181102 for 208/240V.
Continuit
y
?
Reinstall the switch
cover and valve
panel.
Move the other wire to the lower
leg (N.O.) on the side of the switch.
Open the kick panel by raising it
and tilting the top outward.
If the blower runs,
the Door Switch is
wired wrong.
Open the oven door.
Turn on the power
switch.
Disconnect the main
power supply.
Check that one wire is connected
to the (common), 90° bottom
terminal of the switch.
Continues on following page.
Test oven.
Disconnect the main
power supply.
Check the facility's
power supplies.
Connect the main
power supply.
Reinstall the switch
cover and valve
panel.
Is the voltage
as specified?
Connect the main power supply.
Check the voltage specified by the Serial Plate
located behind the oven valve cover panel.
Move a DVM probe to the center terminal of the
switch wires 1 and 2.
NoYes
Reinstall the switch cover and
valve panel.
Test blower.
Replace the switch.
CONVECTION OVEN BLOWER
DOES NOT RUN
Place switch in on position.
Place a DVM on the end terminals
of the blower switch wires 1 and 3.
Remove the protective cover from
over the switch.
Check that the wires and terminals
are secure on the switch.
REMOVE THE MAIN POWER
SOURCE. UNPLUG OR
DISCONNECT CIRCUIT
BREAKER.
Remove the control knobs from the
range.
CAUTION! WIRING BEHIND THE
PANEL OF THE NEXT STEP.
Remove the upper valve panel
cover screws and tilt the panel
forward to expose the back of
blower switch.
No
Yes