Specifications

Multiplex Company, Inc.
Fountain Troubleshooting Guide
27
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.
CO2 gas is present at
dispensing valves but no
Carbonated Water.
No CO
2 Gas or water
present at dispensing
valve.
On units equipped with
the Red Refrigeration
Warning Light.
Refrigeration Warning
Light cycles on and
off with Compressor.
Malfunctioning of Carbon-
ating System.
Defective Agitator.
Defective Ice Bank Con-
trol.
Defective Contactor.
Defective Primary Ice Bank
Control.
If CO
2 gas is present at the Dispensing Valves
and there is no water, the problem is in the
Carbonated Water System. Refer to Trouble-
shooting Section 2: Carbonated Water Sys-
tem.
In a freeze up situation, push Refrigeration
and Agitator Toggle Switches to the off posi-
tion. Drain water from Bath. Pour lukewarm
(never hot) water over the Product Coils until
thawed. Ice down Water Bath using ice from
Ice Maker until further repairs can be made.
Examine the Agitator Motor Assembly. Insure
Propeller is operating and secured to Agitator
and that the Agitator Toggle Switch is in the
on position. If Motor is inoperative, replace.
Remove Electrical Access Panel. Use a voltme-
ter across the Ice Bank Control. Verify Control
is in the open position. If Control is stuck in
the closed position, the unit will freeze up.
Replace Control if necessary. If unit builds and
Ice Bank to the point of extending into stain-
less steel coils, the Ice Bank Control must be
replaced.
Use a voltmeter across Contactor Coil. If no
current is present across Coil, but Contactor
remains closed, Contactor is defective. Re-
place defective Contactor.
When the Refrigeration Warning Light illumi-
nates, the Primary Ice Bank Control is defec-
tive and should be replaced. The Secondary
Control operates the Compressor until the Pri-
mary Control is replaced.
Note: When the Refrigeration Compressor
cycles on, Warning Light will turn off.
When the Compressor cycles off the light
will illuminate.
No carbonated water at any of the dispensing valves
Section 7: Refrigeration System (continued)
Qualifier Probable Cause Corrective Action