Bunn JDF-4S manual Concentrate only, Water only

Page 22

TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

REMEDY

Dispense station

Water solenoid

Replace solenoid (24vdc) or check

concentrate only

 

wire connection between water

 

 

valve and main control board.

Dispense station

Concentrate out

Replace refill concentrate container

water only

 

or BIB

 

Product pump not pumping

Check for proper counterclockwise

 

 

rotation of pump rollers. If coun-

 

 

terclockwise, replace pump tubing.

 

 

If clockwise, wire connection to

 

 

pump is reversed. Switch wires on

 

 

terminals.

 

Pump not turning

A) Check speed setting on circuit

 

 

board and increase speed (turn

 

 

clockwise)

 

 

B) Check for d.c. power to pump

 

 

motor. If yes, replace motor assy. If

 

 

no, check harness for proper con-

 

 

tinuity. Then replace circuit board

 

 

if needed.

22

39992 042007

 

Image 22
Contents JDF-2S JDF-4S Phone 217 529-6601 FAX 217Contents 00656.0000 12559.0003 User Notices27442.0000 33461.0001Plumbing Requirements Initial SET-UPElectrical Requirements Electrical HOOK-UPInstall door cover Door Cover InstallationSecure the door cover using 5 screws provided Initial Fill Plumbing HookupPlumbing Connections JDF-2S Plumbing Connections JDF-4S Initial Fill Hose JDF-2S Initial Fill Hose JDF-4SInitial Fill Frozen Concentrates LoadingPriming Ambient Concentrates OptionalOperating Controls Refrigeration SwitchDispenser USE Operating Controls Portion Control OptionTemperature LEDs JDF-4S Daily Parts Washing Cleaning & Preventive MaintenanceDaily Rinse Procedure Weekly Semi-Automatic Sanitize ProcessAnnually Replace Pump Tubing Cleaning Monthly Clean Condenser CoilsOpen dispenser door Pump Speed Adjustment Adjustment & Optional SettingsWater Flow Testing and Adjustment Mix RatioAdjustment & Optional Settings Temperature Compensated Refractometer MethodAdjustment & Optional Settings Dispenser Lockout LED # Circuit Board LED Indicators JDF-2SFunction List LED Color IlluminatesFunction List Circuit Board LED Indicators JDF-4S JDF-4S Probable Cause Troubleshooting Problem RemedyRefrigeration TroubleshootingCompressor ON/OFF switch Dirty condenser filter or fins Space around machineProblem Probable Cause Remedy Concentrate only Water onlyTray Initial fill/setupNect fittings Water pressure greater thanProblem Probable Cause Coolant Schematic Diagram Schematic Wiring Diagram JDF-2S Schematic Wiring Diagram JDF-4S Quick Setup Guide JDF-2S and JDF-4S JDF-2S shown Machine door
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