VL SERIES STEAMER - TROUBLESHOOTING
SYMPTOM POSSIBLE
CAUSES
Pa
e 86 of 88
Cookin
timer motor does not run. 1. Timer not
ettin
power.
2. Timer motor inoperative.
Buzzer not operatin
. 1. Cookin
timer malfunction.
2. Buzzer malfunction.
Compartment red li
ht and timer do not
come on; excessive time elapses before
they come on; timer stops, the red li
ht
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
h.
Short a time between startin
and the red
li
ht comin
on; red li
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
Compartment Controls
inoperative
1. Ensure that volta
e is reachin
control circuit throu
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
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
for dama
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
to
compartment control wirin
dia
ram.
Cookin
Compartment not ventin
at end
of cook cycle (Prevent models) or when
manual steam control arm is released.
1. Steam control arm not returnin
after unlatchin
(automatic,
standard and manual models).
A. Broken or missin
return sprin
.
B. Packin
nut on steam
ate valve to ti
ht.
C. Steam control (trip) solenoid malfunction (prevent and
automatic models).
2. Steam exhaust solenoid valve malfunctionin
(prevent
models).
