Specifications
Part Number STH12 9/10 117
No water or insufficient water in finished drinks (continued)
Problem occurs at
all valves on one
(1) dispensing
tower.
No power to
transformer or
transformer
defective.
Verify power with a voltmeter at wall
outlet. Verify power across low voltage
leads on transformer. If 24 volts are
present ON and OFF Toggle Switch is
defective. Replace.
Problem occurs at
only one (1)
dispensing valve.
Dispensing
tower’s ON and
OFF is Switch
defective.
Verify Main Power Supply and power
at Transformer Leads replace ON and
OFF Switch if operative.
Poor connection
on valve Wire
Harness.
Trace wiring on defective valve and
reconnect any loose wires. Clean and
reconnect any corroded connections.
Portion Control
Timer
inoperative.
Replace the problem valve Portion
Control Timer with a known Operative
Timer. If valve then operates, Portion
Control Timer was defective. Replace.
Selection
Switch
inoperative.
Replace defective Portion Control
Timer with operative Timer. If Valves
still will not activate, Selection Panel is
defective. Replace Selection Switch.
Poor connection
at Contact Clips
on Selection
Panel (with
Portion Control
Timer).
Examine Contact Clips on Selection
Panel and ensure proper contact
between Portion Control Timer and
Contact Clips.
Valve will not shut
OFF.
Moisture on
Portion Control
Timer or
Contact Clips.
Remove top cover from Dispensing
Tower. Remove all moisture from
Portion Control Timer and Contacts.
Portion Control
Timer
Adjustment
Screw turned
beyond control
limit.
Turn Portion Control Adjustment
Screws on defective valve
counterclockwise 10 complete turns. If
valve shuts off when selection is
pressed, readjust for proper portions.
Note: Several revolutions may be
necessary to bring control back into
range.
Portion Control
Timer defective.
Verify above probables are not the
problem. Push ON/OFF Switch for
Dispensing Tower to the OFF position.
If valve ceases to dispense when
pushed to ON position, Portion
Control Timer is defective. Replace.
Selection Panel
defective.
Push ON/OF Switch for dispensing
tower to the OFF position. If valve
ceases and then continues to
dispense when switch is pushed in
ON position, Selection Panel is
defective. Replace.
Qualifier
Probable
Cause
Corrective Action