BUNN ® OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www.bunnomatic.com 10053.0000L 01/05 ©1996 Bunn-O-Matic Corporation...
SPECIFIED HEREIN, TO REPAIR OR, AT BUNN’S SOLE OPTION, REPLACEMENT OR REFUND. In no event shall Bunn be liable for any other damage or loss, including, but not limited to, lost profits, lost sales, loss of use of equipment, claims of Buyer’s customers, cost of capital, cost of down time, cost of substitute equipment, facilities or services, or any other special, incidental or consequential damages.
Carefully read and follow all notices in this manual and on the equipment. All labels on the equipment should be kept in good condition. Replace any unreadable or damaged labels. #00831.0000 To reduce the risk of electric shock, do not remove or open cover. No user-serviceable parts inside.
When brewing is completed, simply discard the grounds and filter. The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. Check and clean the sprayhead. The sprayhead holes must always remain open.
A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
A fine or drip grind must be used for proper extraction. A six-hole stainless steel spray- head must be used for proper extraction. The BUNN ® paper filter must be centered in the funnel and the bed of grounds leveled by gentle shak- ing.
1. Funnel Loading 1. Tank Heater 1. ON/OFF Warmer Switch 2. Warmer Element(s) Page 7 REMEDY The BUNN ® paper filter must be centered in the funnel and the bed of grounds leveled by gently shak- ing. Remove and clean lime off the tank heater.
SERVICE This section provides procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem. WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel.
SERVICE (cont.) CONTROL THERMOSTAT FIG. 3 CONTROL THERMOSTAT Location: The control thermostat is located inside the hood on the left end of the mounting bracket. Test Procedures: Disconnect the brewer from the power source. Locate the black wire on the control thermostat. Check the voltage across the black wire on the control thermostat and the white wire on the tank heater or the red wire on the tank heater with a...
SERVICE (cont.) CONTROL THERMOSTAT (cont.) Remove the thermostat capillary bulb by firmly pulling-up on the capillary at the tank lid. This will disengage the grommet from the tank lid. Remove the two #8-32 screws securing the con- trol thermostat to the mounting bracket inside the hood.
SERVICE (cont.) ON/OFF WARMER SWITCH FIG. 7 ON/OFF WARMER SWITCHES Location: The ON/OFF warmer switches are located on the front of the hood. Test Procedure: Disconnect the brewer from the power source. Viewing the switch from the back locate the black wire from the switch terminal.
SERVICE (cont.) TANK HEATER FIG. 9 TANK HEATER Location: The tank heater is located inside the tank and secured to the tank lid. Test Procedures: Disconnect the brewer from the power supply. Check the voltage across the black and white wires on 120 volt models or the black and red wires for 220 volt models with a voltmeter.
SERVICE (cont.) TANK HEATER (Cont.) BLK to Limit Thermostat (120V Models) Thermal Cut-off to Blu/BLK Lead From Control Thermostat (220V Two Wire Models) WHI to WHI Lead on Power Cord (120V Models) Thermal Cut-off to Red from Power Connector (220V Two Wire Models) FIG.
SERVICE (cont.) WARMER ELEMENTS FIG. 13 WARMER ELEMENT Location: The warmer elements are located under the warmer plates. Test Procedures: Disconnect the brewer from the power source. Use the white to the power cord or red wire to the power connector and the white/red, violet or brown/black wire on the "ON/OFF"...
SW. & THERMOSTAT BLU/BLK ON/OFF WHI/RED SWITCH WHI/RED ON/OFF SWITCH 120 VOLTS A C 2 WIRE 10050.0000D 1/97 © 1988 BUNN-O-MATIC CORPORATION SINGLE PHASE 60 HZ SCHEMATIC WIRING DIAGRAM VPR (Models with Lighted switches) SW. & THERMOSTAT BLU/BLK ON/OFF SWITCH WHI/RED...
SWITCH WHI/RED ON/OFF SWITCH ON/OFF BRN/BLK SWITCH BRN/BLK 120 VOLTS A C 2 WIRE 10049.0000C 1/97 © 1988 BUNN-O-MATIC CORPORATION SINGLE PHASE 60 HZ SCHEMATIC WIRING DIAGRAM VPS (Models with Lighted switches) SW. & THERMOSTAT BLU/BLK ON/OFF SWITCH WHI/RED ON/OFF...
SCHEMATIC WIRING DIAGRAM VPSA THERMAL SW. & THERMOSTAT CUT-OFF BLU/BLK ON/OFF WHI/RED SWITCH WHI/RED ON/OFF SWITCH ON/OFF BRN/BLK SWITCH BRN/BLK 220 VOLTS A C 2 WIRE SINGLE PHASE SCHEMATIC WIRING DIAGRAM VPRA THERMAL SW. & THERMOSTAT BLU/BLK ON/OFF WHI/RED SWITCH WHI/RED ON/OFF SWITCH...