Specifications

Multiplex Company, Inc.
Fountain Troubleshooting Guide
25
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.
Water Bath Feeder Valve
inoperative (not enough
water in bath).
Water leak inside bath.
Fan or Motor inoperative
(air cooled units).
Condenser restricted.
Excessively warm room.
Lack of Refrigerant
Charge.
Defective Expansion
valve.
Remove tope cover from Remote Refrigeration
Unit. Verify if water level is considerably be-
low Stand Pipe. If so, Water Make-Up valve is
inoperative. Remove, disassemble and clean out
valve. Replace, refill Bath and allow carbon-
ator to cycle while inspecting valve to insure
proper operation. Replace if necessary.
Remove top cover from Remote Refrigeration
Unit. Inspect Water Bath at Stand Pipe. If con-
siderable water is observed running over and
out the drain, there is a water leak inside Bath.
The leak causes the Ice Bank to melt as fast as
its formed. Drain Bath to located the leak, re-
pair and refill bath.
Examine Fan and Motor on Air Cooled Units at
Condenser. If either are found to be inopera-
tive while compressor is running, replace inop-
erative fan or motor.
Caution: Inoperative Fan and Motor can cause
short cycling of compressor.
For Air Cooled Units, clean the Condenser re-
moving all dust and lint. On Water Cooled Units:
Using a thermometer verify temperature at
water discharge line. If operating outside of
the 95°F (35°C) to 105°F (41°C) range, adjust
Water Modulating valve, replace.
Caution: Restricted Condenser can cause short
cycling of compressor.
Verify the Refrigeration Unit is operating in a
well ventilated area and that there are no ob-
structions blocking Condenser. If so, remove ob-
structions if inoperative.
Examine Sight Glass. If bubbles appear while
compressor is operating system is low on
charge. Refer to Serial Plate for proper refrig-
eration charge.
If no bubbles appear in Sight Glass then exam-
ine suction line, frost on the suction line is a
sign of defective Expansion valve. Replace if
inoperative.
Section 7: Refrigeration System
Until repairs can be made on unit with no Ice Bank, push Refrigeration and Agitator Switch to the off
position and ice down Bath using ice from Ice Maker.
Qualifier Probable Cause Corrective Action
Compressor operates
but no ice present at
water bath.
Compressor operates
but no ice present at
water bath.
Warm drinks (carbonated water temperature over 40°F [5°C])