Cornelius MJ32-4 PC, MJ32-4 PB, MJ30-4 PB Troubleshooting Guide, Problem, Probable Cause, Remedy

Models: MJ31-4 PC MJ31-4 PB MJ30-4 PC MJ30-4 PB MJ32-4 PC MJ32-4 PB

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Troubleshooting Guide

Problem

Probable Cause

Remedy

FROM SINGLE VALVE,

Concentrate container empty.

Replace.

UNIT IS DISPENSING

 

 

WATER ONLY.

BIB connector is not engaged

Check BIB connector for proper

 

or improperly installed.

installation. Plunger should be

 

 

completely inserted with concentrate

 

 

filling the line to the dispenser.

 

Air leak in product suction

Check the 3/8 flare connection where

 

line.

the product line attaches to the unit.

 

 

Tighten fitting using a flare gasket. If

 

 

line is drawing air, pump will not

 

 

prime.

 

No power at the pump motor.

Check for broken or loose wire

 

 

connection going to pump motor.

 

 

Check for 26 VDC at pump motor

 

 

when the dispense button is

 

 

energized.

 

Defective gear motor

Check motor function by energizing

 

assembly.

circuit with the dispense button. If

 

 

motor runs, but pump does not turn, a

 

 

broken gear box is indicated. The

 

 

pump motor and gear box are

 

 

replaced as a unit.

 

Pump running backwards.

Check the direction of pump

 

 

rotation...correct rotation is clockwise

 

 

as viewed from the front of the unit.

 

 

If pump is turning in a counter

 

 

clockwise direction, this indicates the

 

 

pump wires are reversed.

 

Defective concentrate pump

Check the pump tubing for ruptures,

 

tubing.

wear, etc. Replace as needed

 

 

following the instructions printed in

 

 

this manual.

 

 

 

DISPENSER IS BRIXING

Supply water pressure too low.

Water pressure must be 20 psi

OUT TOO HIGH.

 

flowing or above.

 

Defective flow control.

Disassemble and check flow control

 

 

assembly for binding, defective

 

 

compensating spring , trapped debris.

 

 

Be sure the spool moves freely within

 

 

the sleeve, replace parts as needed.

 

 

 

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Cornelius MJ32-4 PC, MJ32-4 PB, MJ30-4 PB, MJ30-4 PC, MJ31-4 PB Troubleshooting Guide, Problem, Probable Cause, Remedy