Troubleshooting - Cornelius UF-1 POST-MIX VALVE Operator's Manual

UF-1 Post-Mix Valve Operation Manual
IMPORTANT: Only qualified personnel should service internal components or electrical wiring.
!
WARNING
If repairs are to be made to carbonated water system, disconnect electrical power to Cooling Unit, shut off plain water and
CO2 supplies, and relieve the carbonated water system pressure before proceeding. If repairs are to be made to syrup system,
remove quick disconnects from applicable syrup tank, then relieve the system pressure before proceeding. If repairs are to be
made to CO2 system, stop dispensing, shut off CO2 supply, then relieve the system pressure before proceeding. If repairs are
to be made to an existing Rooftop Condensing unit, disconnect the power to the condensing unit before proceeding.
Trouble
WATER-TO-SYRUP RATIO TOO LOW
OR TOO HIGH
ADJUSTMENT OF DISPENSING
VALVE SYRUP FLOW REGULATOR
DOES NOT INCREASE TO DESIRED
WATER-TO-SYRUP RATIO.
ADJUSTMENT OF DISPENSING
VALVE SYRUP FLOW REGULATOR
DOES NOT DECREASE TO DESIRED
WATER-TO-SYRUP RATIO
NO PRODUCT DISPENSED FROM ALL
DISPENSING VALVES.
NO PRODUCT DISPENSED FROM
ONE DISPENSING VALVE.
NO PRODUCT DISPENSED BUT
OTHER VALVES ARE DISPENSING,
AND " OUT" DISPLAY IS VISIBLE.
Publication Number: 315222002OPR

TROUBLESHOOTING

Probable Cause
Dispensing valve syrup flow regulator not
properly adjusted.
CO gas pressure to syrup tanks
2
insufficient to push syrup out of tanks, or
to pump the syrup.
Dispensing valve syrup flow regulator,
syrup tank quick disconnect, or syrup line
restricted.
No syrup supply.
Syrup quick disconnect not securely
connected.
Syrup CO regulator out of adjustment.
2
Improper syrup baume.
Dirty or inoperative piston or spring in
dispensing valve adjustable syrup flow
regulator.
Syrup pump insufficient capacity.
Dirty or inoperative piston of spring in
dispensing valve adjustable syrup flow
regulator.
No electrical power to dispenser.
Disconnected or broken wiring to
dispensing valves.
Inoperative 24VAC transformer.
Broken or disconnected wiring.
Inoperative dispensing valve solenoid
coil.
Inoperative dispensing valve micro
switch.
Low-Voltage condition exists.
- 18 -
Remedy
Adjust water-to-syrup ratio as instructed.
Adjust the secondary CO regulator
2
supplying the syrup tanks.
Sanitize syrup system.
Replenish syrup supply.
Securely connect quick disconnect.
Adjust syrup CO regulator.
2
Replace syrup supply.
Disassemble and clean dispensing valve
syrup flow regulator.
Replace syrup pump.
Disassemble and clean dispensing valve
syrup flow regulator.
Connect electrical power to dispenser.
Connect or replace wiring.
Replace transformer.
Repair or connect wiring.
Replace solenoid coil as instructed.
Replace micro switch as instructed.
Check secondary voltage. Must be 24
VAC±10%.
Replace transformer with a larger capacity
transformer to accommodate multi valve
dispensing (More than 3 valves).
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