Manuals / Bunn / Kitchen Appliance / Food Warmer

Bunn ULTRA-1 manual Service, Component Access Panels

Models: ULTRA-1

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SERVICE

SERVICE

This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. The dispenser should be disconnected from the power source when servicing, except when electrical tests are required and the test procedure specifically states to connect the dispenser to the power source.

COMPONENT ACCESS PANELS

WARNING - Disconnect the dispenser from the power source before the removal of any panel or the replacement of any component.

All components are accessible by removal of the auger motor cover, lower drip tray, front cover and the left and right side covers.

Refer to the contents listing for component location.

P3930.30

22	41084 102709

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Bunn ULTRA-1 manual Service, Component Access Panels

Contents

BUNN-O-MATICCORPORATION SERVICE & REPAIR MANUALULTRA-1 ULTRA-2 41084.0000B 04/10 2009 Bunn-O-MaticCorporationBUNN-O-MATICCOMMERCIAL PRODUCT WARRANTY Service CONTENTSPreventive Maintenance USER NOTICESFault codes Safety firstBasic Maintenance INTRODUCTIONDISPLAY TEMP & TORQUE TEMP & TORQUE SCREEN161h OPERATING CONTROLS ULTRA-1 OPERATING CONTROLS ULTRA-2 RECOMMENDED DAILY CLEANING ULTRA-2shown RECOMMENDED DAILY CLEANING Continued Sanitizing Procedure Auto-fillCleaning InstructionsWith Brixing Pump Installed Materials requiredNORMAL OPERATION PREVENTIVE MAINTENANCEPOSSIBLE CAUSES FOR FALSE READINGS INSTRUCTIONS REQUIRED REGULAR MAINTENANCE Semi AnnualKit Contents DescriptionREQUIRED REGULAR MAINTENANCE Continued TROUBLESHOOTING No PowerTROUBLESHOOTING cont Chills but won’t freeze TROUBLESHOOTING cont No cooling at all TROUBLESHOOTING cont Freezes, but not thick enoughTROUBLESHOOTING cont Noise Auger won’t turnTorque Sensor Error TORQUE SENSOR SHORTED TROUBLESHOOTING cont TORQUE SENSOR ERRORTORQUE SENSOR OPEN TEMPERATURE SENSOR OPEN TROUBLESHOOTING cont Temperature Sensor ErrorTEMPERATURE SENSOR SHORTED Thermistor unplugged or break in wiring“FILTER NEEDS CLEANING” TROUBLESHOOTING cont Clean Filter Messages“FILTER NEEDS CLEANING!!!” SERVICE COMPONENT ACCESS PANELSMOTOR COIL RESISTANCE SERVICEcont AUGER MOTORSFIG. 1 AUGER MOTORS FIG. 2 AUGER MOTOR TERMINALSSERVICE cont AUGER MOTOR CAPACITOR FIG. 4 AUGER MOTOR CAPACITOR TERMINALSSERVICE cont AUGER SHAFT ASSEMBLY SERVICE cont AUGER SHAFT ASSEMBLYcont SERVICE cont CIRCUIT BREAKER SERVICE cont Location230V DISPENSERS SERVICE cont120V DISPENSERS FIG. 16 COMPRESSOR START RELAY TERMINALSRemoval and Replacement Compressor Assy SERVICE contCOMPRESSOR AMERICOLD ULTRA-2cont SERVICE cont COMPRESSOR EMBRACO ULTRA-2 FIG. 22 THERMAL OVERLOAD PROTECTOR TERMINALS SERVICE cont COMPRESSOR EMBRACO ULTRA-2contModel T-2155 Model T-2168SERVICE cont COMPRESSOR EMBRACO ULTRA-2cont 2.Compressor Run Capacitor SERVICE cont COMPRESSOR APPLIANCES ULTRA-11.Compressor Start Relay 3.Thermal Overload ProtectorFIG. 28 COMPRESSOR CAPACITOR TERMINALS SERVICE contFIG. 26 RELAY TERMINALS COMPRESSOR APPLIANCES ULTRA-1contCOMPRESSOR APPLIANCES ULTRA-1cont SERVICE contCompressor Assy SERVICE cont COMPRESSOR DANFOSS ULTRA-1Bcont SERVICE cont COMPRESSOR DANFOSS ULTRA-1Bcont FIG. 30 RELAY TERMINALSSERVICE cont RELAY or CONTACTOR on Early Models SERVICE cont CONTROL BOARD SERVICE cont COOLING DRUM ALIGNMENT SERVICE cont FAN - ULTRA-2 FAN - ULTRA-1 SERVICE contSERVICE cont HOT GAS TEMPERATURE SENSOR SERVICE cont LAMP CORD ASSY FIG. 45 LAMP CORD ASSYSERVICE cont LAMP CORD CONNECTOR SERVICE cont LAMP HOLDER/SOCKET ASSEMBLY SERVICE cont LAMP RELAY MEMBRANE SWITCH ULTRA-2 SERVICE contMEMBRANE SWITCH ULTRA-1 SERVICE contFIG. 59 SOLENOIDS SOLENOIDSSERVICE cont SERVICE cont TEMPERATURE SENSOR SERVICE cont TORQUE SENSOR CIRCUIT BOARD DO NOT TURN ON AUGERSTRANSFORMER SERVICE contCOOLANT SCHEMATIC ULTRA-1 COOLANT SCHEMATIC ULTRA-2 TRIAC MAP for ULTRA-1 ULTRA-1TRIACSLIQUID AUTO-FILLBOARD TRIAC MAPS for ULTRA-2ULTRA-2TRIACS Input and Output Chart ULTRA-1 41084 Input and Output Chart ULTRA-2 41084 41084