Specifications

102 Part Number STH12 9/10
Flat drinks (lack of carbonation in carbonated water)
Primary Regulator
(less than 500 psi
[34.5 bar]).
CO
2
Supply
exhausted (CO
2
Tank is
functionally
empty if
pressure reads
less than 500
psi [34.5 bar]).
Verify CO
2
Tank pressure is a
minimum of 500 psi (34.5 bar) on the
Primary Pressure Regulator Gauge
marked 0-2000 psi. Replace tank if
necessary.
Primary
Regulator out of
adjustment or
inoperative.
Verify CO
2
Primary Regulators are set
at 90 psi (6.3 kg/cm
2
). Adjust if
necessary. If Regulator will not stay in
adjustment, replace Regulator.
CO
2
Supply
adequate (greater
than 500 psi
[34.5 bar]).
A and B CO
2
Tank
Change-over
Valve incorrectly
positioned.
If A and B CO
2
Tank Change-over
Valve is positioned on an empty Tank
or halfway between A and B operating
positions, CO
2
is not supplied to
Carbonators. Ensure valve handler is
in the “operating” position.
Malfunction of
the
Refrigeration
System.
Refer to Troubleshooting
“Refrigeration System” under Warm
drinks.
Water Filter
restricted.
Refer to Troubleshooting “Water Filter
System” under Peculiar taste.
Malfunction of
the Carbonated
Water System.
Refer to Troubleshooting “Carbonated
Water System” under Flat drinks.
Excessive
carbonation
(foaming).
Primary
Regulators set
too high.
Verify CO
2
Primary Regulators are set
at 90 psi (6.3 kg/cm
2
). Adjust if
necessary. If Regulator will not stay in
adjustment, replace regulator.
Replace.
Low Pressure CO
2
Warning light or
buzzer does not
come ON.
Warning lamp or
buzzer burned
out.
Transformer
inoperative.
When CO
2
Tank is empty and CO
2
warning lamp(s) or buzzer fail, verify
voltage across Transformer. If no
voltage, replace Transformer.
Pressure Switch
defective.
If CO
2
Warning lamps or buzzer and
transformer are operative. Pressure
Switch is defective and must be
replaced.
Qualifier
Probable
Cause
Corrective Action