Cornelius MJ31-4 PC No COOLING. Tripping, Overload, Anything on TOP, Refrigeration System

Page 17

Troubleshooting Guide

Problem

Probable Cause

Remedy

COMPRESSOR RUNS BUT

Condenser fan not running.

Check that the condenser fan is

NO COOLING. TRIPPING

 

running. If the fan is binding or

OVERLOAD.

 

turning slowly, an overload condition

(Compressor shell is hot to

 

will occur.

touch).

 

 

 

Inadequate air flow through

Air flow is top front in, exhaust out

 

the dispenser.

the rear. NEVER PLACE

 

 

ANYTHING ON TOP OF THE

 

 

DISPENSER. This will block the

 

 

airflow over heating the compressor

 

 

and causing it to trip the overload.

 

Blocked condenser fins.

Remove the rear bonnet and check

 

 

the condenser fins. If unit is run in a

 

 

dusty environment, condenser fins

 

 

can become clogged, stopping the air

 

 

flow.

 

 

Brush out and clean with vacuum.

 

Ambient air over 100°F 38°C.

If the dispenser is working in an

 

 

environment over 100° ambient or is

 

 

drawing in discharged air, during a

 

 

heavy period, the unit may trip the

 

 

overload.

 

Defective overload.

Overload works on shell temperature

 

 

and amperage draw and can be

 

 

defective. Replace as needed.

 

Defective compressor.

Refrigeration technician will verify if

 

 

the compressor is defective and needs

 

 

to be replaced.

UNIT IS DISPENSING

Insufficient water level in the

See the Start-up and Operation

CONCENTRATE ONLY

water bath.

Section of this manual. Be sure the

REFRIGERATION SYSTEM

 

water bath is filled to fill line.

HAS BEEN RUNNING FOR

 

 

EXTENDED PERIOD

Agitator motor not operating.

Check the agitator motor located on

WITHOUT SHUTTING OFF

 

the refrigeration deck. Be sure it is

FROZEN WATER COIL.

 

plugged in and receiving power.

 

 

Check that the impeller is not

 

 

obstructed. Replace if needed.

 

Improperly located ice bank

Melt the ice bank and check the

 

control sensor.

location of the sensing bulb. Be sure

 

 

it is all the way down to the bottom

 

 

of the tube.

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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 Concentrate only no Unit DispensingWater to ALL Valves From Single ValveOUT TOO High Unit is Dispensing Water onlyDispenser is Brixing OUT TOO LOW Water Leaks from Operate When onlyBottom of Dispensing ValveRUN Compressor will notCompressor Runs but No Cooling is TakingOverload No COOLING. TrippingAnything on TOP Refrigeration SystemExtended 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