Instruction/ maintenance manual of the product VLPF Bunn
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B UNN ® VLPF OPERA TING & SER VICE MANU AL B UNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 10179.
Page 2 INTRODUCTION This equipment will brew a half-gallon batch of coffee into an awaiting decanter and dispense hot water on demand for other purposes. It has two warmers to keep the beverage at the right temperature. The brewer is only for indoor use on a sturdy counter or shelf.
Page 3 USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices on the equipment should be kept in good condition. Replace any unreadable or dam- aged labels. #00656.0000 #00658.
Page 4 ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power sour ce until specified in Initial Set-Up. The brewer has an attached cordset and requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz.
Page 5 10179 060100 INITIAL SET -UP CAUTION - The brewer must be unplugged throughout the Initial Set-up , except when specified in the instruc- tions. 1. Remove the top lid from the brewer . 2. Rotate the control thermostat knob fully counter clockwise to the “ OFF ” position and replace the top lid.
Page 6 2. Setting batch sizes. T o set a batch volume, first check that the SET/LOCK switch is in the “ SET ” position on the circuit board. Pr ess and hold the ST ART or BREW switch until thr ee distinct clicks are heard, and then release the switch.
Page 7 TROUBLESHOOTING 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 T echnical Ser vices Department.
Page 8 TROUBLESHOOTING (cont.) PROBLEM Equipment will not operate Brew cycle will not start Automatic refill will not operate af- ter drawing hot water . PROBABLE CAUSE 1. No power or incorrect voltage 1. No water 2. Water strainer/Flow Control 3. On/Left switch 4.
Page 9 TROUBLESHOOTING (cont.) PROBLEM Automatic refill will not operate after drawing hot water .(cont.) W ater flows into tank continuously (On/left switch “ OFF ” ) W ater flows into tank continuously (On/left switch “ ON ” ) Water is not hot.
Page 10 TROUBLESHOOTING (cont.) PROBLEM Decanter warmer is not hot Spitting or unusual steaming from sprayhead Inconsistent beverage level in de- canter PROBABLE CAUSE 1. Warmer switches 2. Decanter warmers 1. Control thermostat 2. Lime build-up CAUTION: T ank and tank compo- nents should be delimed regularly depending on local water condi- tions.
Page 11 TROUBLESHOOTING (cont.) PROBLEM Inconsistent beverage level in de- canter (cont.) Consistently high or low beverage level in decanter . Dripping from sprayhead Beverage overflows decanter . Weak beverage PROBABLE CAUSE 3. Syphon System 1. Brew timer adjustment 1.
Page 12 TROUBLESHOOTING (cont.) PROBLEM Weak beverage (cont.) Brewer is making unusual noises PROBABLE CAUSE 4. Funnel loading 5. Water temperatur e 1. Solenoid valve 2. Plumbing lines 3. W ater supply REMEDY The BUNN ® paper filter should be centered in the funnel and the bed of ground coffee leveled by gentle shaking.
Page 13 SERVICE This section provides procedures for testing and replacing various major components used in this brewer should service become necessar y .
Page 14 BREW TIMER (early models) SERVICE (cont.) Location: The brew timer is located in the hood, to the right of the tank. T est Pr ocedure: 1. Disconnect the brewer from the power source and separate the polarized, three-pin connectors be- tween the timer and brewer wiring harness and rotate the brew timer dial fully counterclockwise.
Page 15 BREW TIMER (cont.)(late models) 10179 060100 P2172.80 SERVICE (cont.) Location: The brew timer is located in the hood, to the right of the tank.
Page 16 1. Modifying brew volumes. T o modify a brew vol- ume, first check that the SET/LOCK switch is in the “ SET ” position on the cir cuit board. T o increase a brew volume, place the ON/OFF switch in the “ ON ” position, press and hold the ST ART switch until three clicks are heard.
Page 17 SERVICE (cont.) Location: The control thermostat is located on the rear of the hood to the right of the tank. T est Pr ocedure: 1. Disconnect the brewer from the power sour ce and remove the black wire from the control thermo- stat.
Page 18 SERVICE (cont.) DECANTER WARMERS.
Page 19 SERVICE (cont.) LIMIT THERMOST A T Location: The limit thermostat is located on the tank lid be- tween the tank heater terminals. T est Pr ocedure: 1. Disconnect the brewer from the power sour ce and remove the blue wire from the limit thermostat.
Page 20 LIQUID LEVEL CONTROL SYSTEM Location: The liquid level control system is composed of the circuit board in the right front corner of the hood and the probe in the tank lid. T est Pr ocedure: 1. Disconnect the brewer from the power source and remove the wires from terminals 1 & 4 of the cir - cuit board.
Page 21 SERVICE (cont.) LIQUID LEVEL CONTROL SYSTEM (cont.) Removal and Replacement: 1. Remove all wires from the liquid level control board terminals.
Page 22 If continuity is not present as described, replace the switch. Removal and Replacement: 1. Remove all wires from the switch terminals. 2. Compress the clips inside the hood and gently push the switch through the opening. 3. Push the new switch into the opening and spread the clips to hold the switch captive in the panel.
Page 23 SERVICE (cont.) RELA Y FIG. 16 RELA Y P2172.80 Location: The relay is located in the right rear corner of the hood. T est Pr ocedures 1. Disconnect the brewer from the power sour ce.
Page 24 Location: The Right switch is located in the front of the hood, above and to the right of the brew funnel. T est Pr ocedure: 1. Disconnect the brewer from the power source and remove the wires from all three terminals of the Right switch. 2. With a voltmeter , check the voltage across the black and white wires.
Page 25 SERVICE (cont.) SOLENOID V AL VE P N : 6 5 8.
Page 26 ST ART SWITCH.
Page 27 SERVICE (cont.) P N : 6 5 8 P1983 FIG. 24 T ANK HEA TER 10179 060100 T ANK HEA TER Location: The tank heater is located on the tank lid. T est Pr ocedure: 1. Disconnect the brewer from the power sour ce and remove both wires from the tank heater .
Page 28 10179 091599.
An important point after buying a device Bunn VLPF (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn VLPF yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn VLPF - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn VLPF you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn VLPF will certainly help you make a decision on the purchase.
If you already are a holder of Bunn VLPF, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn VLPF.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn VLPF. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn VLPF along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
