Service manual

VSX SERIES STEAMER - SERVICE PROCEDURES AND ADJUSTMENTS
Page 21 of 40
2. Turn the thermostat adjustment stem fully
clockwise for a starting position.
3. Open the water valve and turn the power switch
"on.”
4. Open the steam compartment door while the
steam generator tank is heating up, and wait for
“drift steam” to begin coming out of the steam
ports. Approximate time 10 minutes.
NOTE:
The door switch has no effect during preheat
until thermostat temperature is satisfied and the
“ready” light comes on.
5. Once “drift” steam is seen coming out of the
steam ports, slowly turn the thermostat
adjustment CCW until the thermostat “opens”
and the ready light comes on.
NOTE:
If water begins to drip “heavily” out of steam
ports along with “drift” steam, then the tank water
has reached too high of a temperature and is
boiling. The thermostat setting must be adjusted
down as indicated above.
6. With the door still open, set a time on the cook
timer and depress the door switch button.
Immediately after depressing the door switch
button, begin counting the seconds until steam
is “seen” coming out of the ports.
A. If it takes longer than time listed in the chart
below, the thermostat setting is too low and
must be increased. Proceed to step B.
B. Adjust the setting 1/8 of a turn CW to
increase the set point temperature and
repeat step 6 until steam exits the ports in
the time listed.
MODEL APPROXIMATE
TIME FOR STEAM
TO ENTER
COMPARTMENT
ELECTRIC 5 sec.
GAS 13 sec.
NOTE:
If after increasing the thermostat setting, the
ready light stays “on” (heat not on) then the
thermostat is still satisfied. To shorten the wait time
until the heat comes on again, turn the power switch
“off” for several seconds to drain some hot water out
of the tank, then turn the switch back “on”. At this
point, the tank should begin filling with cold water,
bringing the temperature down and causing the
thermostat to call for heat. Repeat if necessary.
C. If steam comes out of the ports like the
steamer was in a “cooking mode” and the
ready light never comes on, the set point
temperature is too high. Proceed to step D.
D. Adjust the setting 1/8 of a turn CCW to
decrease temperature set point and repeat
step 6 until steam exits the ports in the time
listed.
E. If steam comes out of the ports in the time
listed above, then thermostat is set
correctly.
F. After adjusting the thermostat to its highest
setting and steam does not come out of the
ports as described, then replace the
thermostat.
DRAIN TANK MANUALLY
WARNING:
DISCONNECT THE ELECTRICAL
POWER TO THE MACHINE AT THE MAIN
CIRCUIT BOX. PLACE A TAG ON THE CIRCUIT
BOX INDICATING THE CIRCUIT IS BEING
SERVICED.
1. Turn “off” the water supply to the steamer.
2. Remove the right side panel as outlined under
"COVERS AND PANELS".
3. Remove the cover from the drain valve motor
as outlined under “DRAIN VALVE”.
4. Loosen the screws from the motor assembly
and lift up on the motor to remove it from the
valve body.
5. Turn the stem of the drain valve so that it is
perpendicular to the inlet and outlet lines. This
should drain the tank unless the drain line is
clogged.