Specifications
Multiplex Company, Inc.
Fountain Troubleshooting Guide
23
00218012 Revision B (KAK) 7 August, 2000
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.
Foaming of finished
products.
Unit totally inopera-
tive; all electrical
switches in the on
position.
Nozzles, Syrup Tube Diffus-
ers dirty.
Warm drinks.
Incorrect pressure on
syrup.
Change-over Valve Medium
or Low Pressure is in the
wrong position.
Air or CO
2 gas in syrup line.
Flake ice.
Improper adjustment of
valve.
Power failure, all power to
system is off, or Fuse/
Circuit Breaker is open.
Remove and clean Nozzle Assemblies and reas-
semble.
Refer to Troubleshooting Section 7: Refrigera-
tion System under Warm drinks.
Verify pressure supplied to sugar base products
is at 60 psi (4.2 kg/cm
2
). Adjust Medium Pres-
sure Regulator if necessary. Verify pressure sup-
plied to diet product is at 15 psi (1.1 kg/cm
2
).
Adjust Low Pressure Regulator if necessary.
Note: Insure the Low Pressure Supply Line has
not mistakenly been switched for a Medium
Pressure Supply Line on the diet tank.
Verify valve Medium to Low Pressure is in the
Low Pressure position for diet products.
Replace empty Syrup Tank. Dispense Syrup from
valve until consistent flow is achieved and prod-
uct stabilizes. If evidence of air is still enter-
ing line, replace Liquid Disconnect which is al-
lowing air to be drawn into syrup supply.
Only cube ice should be used for carbonated
beverages.
Insure carbonated water flow is properly set
(5oz. in 4 seconds standard valve, 10 oz in
4seconds Fast Flow valve). Insure Brix is prop-
erly set. Adjust as necessary.
Check Circuit Breaker. Reset. Examine Time De-
lay, replace if necessary.
No water or insufficient water in finished drinks (continued)
Section 5: Dispensing Valve and Tower (continued)
Qualifier Probable Cause Corrective Action