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SYMPTOM
Cooking timer motor does not run.
Buzzer not operating.
Compartment red light and timer do not
come on; excessive time elapses before
they come on; timer stops, the red light
goes out, and the buzzer does not sound
after compartment exhausts steam; time
is set as usual for the product and the
product is overcooked.
Short a time between starting and the red
light coming on; red light comes on
immediately; time is set as usual for the
product and the product is undercooked.
Cooking Compartment Controls
inoperative
Cooking Compartment not venting at end
of cook cycle (Prevent models) or when
manual steam control arm is released.
VL SERIES STEAMER - TROUBLESHOOTING
1.
Timer not getting power.
2.
Timer motor inoperative.
1.
Cooking timer malfunction.
2.
Buzzer malfunction.
1.
Thermal switch (load compensator) is set too high.
1.
Thermal switch (load compensator) is set too low.
1.
Ensure that voltage is reaching control circuit through
compartment power switch when turned ON.
2.
On electric heat models with a transformer, check step down
transformer (located in the contactor box) for proper
operation.
3.
Check cooking timer function and contact position. See
"SCHEMATIC AND WIRING DIAGRAMS -
COMPARTMENT CONTROLS" under "ELECTRICAL
OPERATION".
4.
Check that timer motor operates when connected to power. If
a problem is found in timer, replace it, do not take timer
apart.
5.
On prevent and automatic models check the load
compensator for malfunction.
6.
Check wiring for damaged insulation. (no short circuit)
7.
Check that all connections and terminals are securely
fastened. (no open circuits)
8.
Check that all connections are made according to
compartment control wiring diagram.
1.
Steam control arm not returning after unlatching (automatic,
standard and manual models).
A.
Broken or missing return spring.
B.
Packing nut on steam gate valve to tight.
C.
Steam control (trip) solenoid malfunction (prevent and
automatic models).
2.
Steam exhaust solenoid valve malfunctioning (prevent
models).
Page 86 of 88
POSSIBLE CAUSES
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