Specifications

00218012 Revision B (KAK) 7 August, 2000
6
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of elec-
trical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electri-
cal tests are required.
DANGER: Use extreme care during electrical cir-
cuit tests. Live circuits may be exposed.
Low Pressure CO2 Warn-
ing light or buzzer does
not go off.
Water found in CO2
Regulator and lines.
Section 1: CO2 Gas System (continued)
Qualifier Probable Cause Corrective Action
Leaks on system.
Primary Regulator out of
adjustment.
Pressure Switch inopera-
tive.
CO
2 Check Valve defective.
If leaks exist on CO2 System, not enough pres-
sure is maintained to allow Pressure Switch to
cut off CO2 Warning light or buzzer. Use a
soap solution to located possible leaks. Tighten
connections carefully.
Check CO
2 supply. The Primary Regulators must
be set at 90 psi (6.3 kg/cm
2
). Adjust if neces-
sary. If regulator will not stay in adjustment,
replace regulator.
Carefully disconnect one wire from the CO2
Pressure Switch, if CO2 Warning Lamps go out,
the CO
2 Pressure Switch is defective and should
be replaced. Carefully disconnect one wire from
the CO2 Pressure Switch, if CO2 Warning Lamps
go out, the CO
2 Pressure Switch is defective
and should be replaced.
Turn CO
2 off at CO2 Tank valve. Remove top
Cover from Remote Refrigeration Unit. Locate
CO2 Check valve on top of Carbonator Tank.
Remove CO
2 line on Inlet side of Check Valve. If
CO
2 is present, escaping from Carbonator Tank,
clean out or replace Check valve.
Flat drinks (lack of carbonation in carbonated water) (continued)