Bunn LCA-1, LCR-1 service manual Troubleshooting Guide, Error Codes, LED Display Error

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TROUBLESHOOTING GUIDE

Error Codes

When an error has occurred, the Warning LED will be flashing. Open the door to view the LED Display and record the Error # shown on the display. Refer to the list of Error Codes below to identify the problem. The troubleshooting guide is provided to suggest probable causes and remedies for most problems. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department.

LED DISPLAY

E_01

E_02

E_ 0 3

E_04

E_ 0 5

ERROR

DESCRIPTION/TROUBLESHOOTING

Pump Error

Motor or RPM Sensor failure. Check

 

motor and RPM

 

Sensor wires for shorts, loose or open

 

connections.

Heating Time Too Long

Tank Heater ON continuous for more

 

than 1 hour.

 

Check heater wires for loose or open

 

connections.

Fill Time Too Long

Fill Valve ON continuous for more than

 

15 minutes.

 

Water turned OFF. Refill Valve

 

disconnected or faulty.

Tank Temp Sensor Error

Sensor reading Out Of Range (High

 

or Low).

 

Check Sensor wires for shorts, loose

 

or open connections.

Dispense Time Too Long

Dispense or Hot Water switch has been

 

ON for more than 2 Min.

 

Check: Dispense switches for proper

 

operation or damage. Door harness

 

for shorts.

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44806.1 081211

 

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Contents Phone 217 529-6601 FAX 217 LCR-1 LCA-1BUNN-O-MATIC Commercial Product Warranty Contents 33461.0005 11646.0002 User Notices00656.0001 27442.0000Electrical Requirements IntroductionPlumbing Requirements Electrical HOOK-UP Initial SET-UPLocating the Dispenser Plumbing HOOK-UPUser Interface Operating Controls and InterfaceOperating Controls and Interface Installing the Pump Tubing Installing Pump TubingPriming the Concentrate Line Initial Fill & Heat Cabinet Target Temperature LCR-1 Only Rinse Alarm FeatureLevel Selected Alarm Programming the Dispenser Display Mode DescriptionLED Display Programming the Dispenser Program Mode DescriptionOperating the Dispenser Weekly Sanitizing General Cleaning and Sanitizing ProceduresDaily Rinsing Daily Parts WashingReplacing the Water Filter Preventive MaintenanceCleaning the AIR Filter LCR-1 Only Replacing the Pump TubingCalibrating the Dispenser Calibration Mode  DESCRIPTIONCalibrating the Dispenser Reset Factory DefaultsDefault setting Reset by holding the DecreaseError Codes Troubleshooting GuideLED Display Error Follow errors codes apply to the LCR-1 only Troubleshooting Guide Error CodesDESCRIPTION/TROUBLESHOOTING Calibrating the Concentrate Pumps Calibration of the Concentrate Pump & Dispenser Flow RateDraining the HOT Water Tank Calibration of the Concentrate Pump & Dispenser Flow RateCalibrating the Dispenser Flow Rates Tank Heater Schematic Wiring Diagram LCR-1 / LCA-1