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VL SERIES STEAMER - TROUBLESHOOTING
SYMPTOM POSSIBLE
CAUSES
Pa
g
e 86 of 88
Cookin
g
timer motor does not run. 1. Timer not
g
ettin
g
power.
2. Timer motor inoperative.
Buzzer not operatin
g
. 1. Cookin
g
timer malfunction.
2. Buzzer malfunction.
Compartment red li
g
ht and timer do not
come on; excessive time elapses before
they come on; timer stops, the red li
g
ht
g
oes out, and the buzzer does not sound
after compartment exhausts steam; time
is set as usual for the product and the
product is overcooked.
1. Thermal switch (load compensator) is set too hi
g
h.
Short a time between startin
g
and the red
li
g
ht comin
g
on; red li
g
ht comes on
immediately; time is set as usual for the
product and the product is undercooked.
1. Thermal switch (load compensator) is set too low.
Cookin
g
Compartment Controls
inoperative
1. Ensure that volta
g
e is reachin
g
control circuit throu
g
h
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 cookin
g
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 wirin
g
for dama
g
ed insulation. (no short circuit)
7. Check that all connections and terminals are securely
fastened. (no open circuits)
8. Check that all connections are made accordin
g
to
compartment control wirin
g
dia
g
ram.
Cookin
g
Compartment not ventin
g
at end
of cook cycle (Prevent models) or when
manual steam control arm is released.
1. Steam control arm not returnin
g
after unlatchin
g
(automatic,
standard and manual models).
A. Broken or missin
g
return sprin
g
.
B. Packin
g
nut on steam
g
ate valve to ti
g
ht.
C. Steam control (trip) solenoid malfunction (prevent and
automatic models).
2. Steam exhaust solenoid valve malfunctionin
g
(prevent
models).