Cornelius MJ31-4 PC, MJ32-4 PB, MJ32-4 PC, MJ30-4 PB, MJ30-4 PC, MJ31-4 PB Troubleshooting Guide

Page 11

Troubleshooting Guide

Problem

Probable Cause

Remedy

DISPENSER IS TOTALLY

No power present at the

Check the power circuit for a blown

INOPERATIVE

source.

fuse or tripped circuit breaker. Check

 

 

the supply line for the proper

 

 

amperage and voltage

 

 

ratings.....dedicated 15 amps /115

 

 

volts.

 

Power is present at the

Check the power cord connection

 

source...dispenser is still

located behind the front splash panel.

 

inoperative.

 

DISPENSER WILL NOT

Refrigeration shut off switch

Refrigeration shut off switch is

COOL

is in the off position.

located on the top of the dispenser .

 

 

This switch will disable the

Drink temperature should be

 

compressor and the condenser fan

35-45°F (2-7°C)

 

motor. Be sure the switch is in the on

 

 

position.

 

Low water bath level.

Check water bath level. If 2 gallons

 

 

or more are added, cause of problem

 

 

has been confirmed.

 

Depleted ice bank ( not

Check compressor. If running, allow

 

applicable after period of

the system time to recover

 

heavy usage.)

(approximately 1 hour). If

 

 

compressor is not running or the

 

 

system is not recovering see the

 

 

Refrigeration System

 

 

Troubleshooting section.

 

Defective Ice bank control.

See Refrigeration System

 

 

Troubleshooting section.

WITH POWER PRESENT,

Key lock switch in the OFF

Check position of the key lock

UNIT WILL NOT DISPENSE

position.

switch. Check for loose wire

ALL VALVES.

 

connections. Run continuity check,

 

 

replace as needed.

 

Transformer not connected or

Check the connection between the

 

defective.

power strip and the transformer.

 

 

Check transformer output at terminal

 

 

junction on control box for 26 VAC.

 

Fuse blown between the

Check the fuse located in the

 

transformer and voltage

electrical box, left side. This box is

 

regulator boards.

located on the refrigeration deck and

 

 

will require the removal of the upper

 

 

bonnet. Replace fuse as needed.

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Contents Installation & Service Manual Table of Contents General Description Specifications Receiving & Unpacking InstallationFill Ice Water Bath Brixing Concentrate Programming Portion Control optionalCleaning and Sanitizing Equipment and Supplies Cleaning & Sanitizing SystemMaintenance Refrigeration System Daily Cleaning MaintenanceIce Water Bath Cleaning Troubleshooting Guide From Single Valve Unit DispensingConcentrate only no Water to ALL ValvesOUT TOO High Unit is Dispensing Water onlyDispenser is Brixing OUT TOO LOW Valve Operate When onlyWater Leaks from Bottom of DispensingNo Cooling is Taking Compressor will notRUN Compressor Runs butRefrigeration System No COOLING. TrippingOverload Anything on TOPExtended Period Without Shutting OFF Frozen Water Coil Has Been Running forMillennium 4 Valve Schematic Description QTY Final AssemblyFinal Assembly Final Assembly Platform Assembly Pump & Bracket Assembly Pump Motor Assembly Dispensing Assembly Valve Block Assembly Valve Block Assembly Electrical Box Assembly Voltage Regulator Assembly, SLJ1000-2 Portion Control Assembly Portion Control Electrical Diagram For 10 Dispensers Millennium Model MJ30-4 Recommended Spare Parts ListDescription Millennium Model MJ30-4 Optional AccessoriesIMI Cornelius INC Illustrated Parts List Millennium II Name Illustrated Parts ListPump Platform Assembly Lower Housing Assembly 1717 Refrigeration Deck AssemblyIllustrated Parts List Water Coil Assembly Pump & Motor Assembly Name Valve Panel Assembly Valve Block Assembly Name Touch Panel Assembly PB Touch Panel Assembly PC Name Electrical Box Assembly Name Brown Wire B4 Ice Bank Control Assembly NameSpeed Switch Assembly Name Top Panel Assembly Name Merchandiser Assembly Name Wiring Volt 60 HZ ForRecommended Spare Parts List Accessories and Service Items Illustrated Parts List Page N85318 Rev. B Print Date 2/99