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Manual Bunn FMD-3

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  • Bunn FMD-3 - page 1

    OPERA TING & SERVICE MANUAL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 29170.0000E 01/06 © 1998 Bunn-O-Matic Corporation FMD-3 (S/N FMD0013000-UP) ...

  • Bunn FMD-3 - page 2

    2 INTRODUCTION This equipment dispenses hot beverages or soup on demand from powdered product. It has three hoppers. This equipment may also dispense cold beverages from powdered product from the left dispense station. It is for indoor use only on a sturdy counter or shelf. W ARRANTY Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactur ...

  • Bunn FMD-3 - page 3

    3 00656.0000 00831.0000 28301.0003 This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). For models installed outside the U.S.A., comply with the applicable Plumbing /Sanita ...

  • Bunn FMD-3 - page 4

    4 INITIAL SET -UP 1. Locate the drip tray assembly above the dispenser nested in the packing material. 2. Remove the drip tray and the drip tray cover and set them aside. 3. Remove the water strainer assembly from the drip tray and set it aside. 4. Remove the four legs from the packaging material, apply non-skid pads to the bottom of the legs and s ...

  • Bunn FMD-3 - page 5

    5 INITIAL FILL & HEA T CAUTION - The dispenser must be disconnected from the power sour ce throughout the initial fill & heat, except when specified in the instructions. 1. Turn on the water supply and connect the dispenser to the power source. 2. Water will automatically flow into the tank to the proper level and then shut off. This will t ...

  • Bunn FMD-3 - page 6

    6 COLD BEVERAGE SET -UP (OPTIONAL) Cold beverages may be dispensed from the left dispense position. Simply place the HOT/COLD switch near the left whipper chamber in the “COLD” (upper) position. CLEANING Refer to the decal inside the hopper access door for cleaning recommendations and procedures. The use of a damp cloth rinsed in any mild, non- ...

  • Bunn FMD-3 - page 7

    7 4. Press and hold the dispense switch of the appropriate chamber for 5 seconds. The hopper motor will run for 10 seconds at the programmed speed. 5. Remove the cup and weigh the dispensed product. To calculate the throw rate (g/s or oz./s), divide the total weight of the dispensed product by 10. 6. Replace the mixing chamber and steam collector, ...

  • Bunn FMD-3 - page 8

    8 PROBLEM Product will not dispense PROBABLE CAUSE 1. No water 2. No power or incorrect voltage to the dispenser 3. Dispense Switch 4. Dispense Solenoid Valve (Hot or Cold) 5. Solenoid Valve (Inlet) 6. Control Board 7. Overflow Protection Switch 8. Auger Drive REMEDY Water lines and valves to the dis- penser must be open. (A1) Check for 120 volts a ...

  • Bunn FMD-3 - page 9

    9 TROUBLESHOOTING (cont.) PROBLEM Product will not dispense (cont.) Water is not hot Spitting or excessive steaming PROBABLE CAUSE 9. Water Strainer 10. Lime build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate corro- sive ...

  • Bunn FMD-3 - page 10

    10 TROUBLESHOOTING (cont.) PROBLEM Dripping from dispense tip Water flows into tank continuously Product overflows container PROBABLE CAUSE 1. Lime build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate corro- sive reactions ...

  • Bunn FMD-3 - page 11

    11 TROUBLESHOOTING (cont.) PROBLEM Weak product PROBABLE CAUSE 1. Water temperature 2. Whipper Motor 3. Frother 4. Dispense Solenoid Valve (Hot or Cold) 5. Auger Drive 6. Auger Spring 7. Auger Motor 8. Rinse/Run Switch 9. Rinse Timer REMEDY Place an empty container beneath the dispense tip. Initiate a dispense cycle and check the water tempera- tur ...

  • Bunn FMD-3 - page 12

    12 PROBLEM Dispenser is making unusual noises Excess dust Display not lit PROBABLE CAUSE 1. Plumbing Lines 2. Water Supply 3. Tank Heater 1. Fan 2.Control Board 1. Lamp 2. Lamp Holder 3. Starter - Lamp 4. Ballast REMEDY Plumbing lines should not be rest- ing on the counter top. (A) The dispenser must be connected to a cold water line (B) Water pres ...

  • Bunn FMD-3 - page 13

    13 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 electri- cal equipment should be performed only by qualified service pers ...

  • Bunn FMD-3 - page 14

    ...

  • Bunn FMD-3 - page 15

    SERVICE AUGER DRIVE COMPONENTS (CONT .) P2210.30 12 13 14 11 15 16 Late Models 1. Hopper Lid 2. Agitator Disk Assy 3. Auger Drive Shaft Bushing 4. Mixing Blade 5. Auger Drive Shaft 6. Auger Drive Bracket 7. Locknut 8. Hopper 9. Auger Wire 10. Ejector Elbow 11. Auger Motor Mount- ing Panel 12. Auger Motor Bracket 13. Auger Motor 14. Dust Seal 15. Sh ...

  • Bunn FMD-3 - page 16

    16 SERVICE (cont.) Auger Drive Motor (Refer to Fig. 2 & 3): 1. Remove all hopper assemblies (20,17) and set aside for reassembly. 2. Remove the four #8-32 screws securing the hop- per support plate (19,16), remove plate and set aside for reassembly. 3. Remove the four #8-32 locking screws, located inside the dispenser housing on the front of th ...

  • Bunn FMD-3 - page 17

    17 BLK to BLU from Door Interconnect Harness SERVICE (cont.) BALLAST FIG. 5 BALLAST Location: The front door lamp ballast is located behind the front access panel on the left side of the component bracket. T est Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the two black leads on the ballast from the door interconnect ...

  • Bunn FMD-3 - page 18

    18 SERVICE (cont.) J4 J1 J2 J3 CONTROL BOARD FIG. 7 CONTROL BOARD Location: The Control Board is located behind the lower front access cover mounted on the component bracket. Test Procedure: Liquid Level Control Circuitry: 1. Disconnect the dispenser from the power source. 2. Disconnect the six pin connector from J3 of the control board. 3. With a ...

  • Bunn FMD-3 - page 19

    19 J4 J2 J3 J1 J1 J4 J2 J3 FIG. 8 CONTROL BOARD CONNECTORS P1640 17. Gently pull the liquid level probe out of the tank lid and inspect for corrosion. Replace it if necessary. 18. Place the probe so that neither end is in contact with any metal surface of the dispenser. 19. With a voltmeter, check the voltage across the terminals of the inlet solen ...

  • Bunn FMD-3 - page 20

    20 SERVICE (cont.) CONTROL THERMOST A T FIG. 9 CONTROL THERMOST A T Location: The control thermostat (mechanical or electronic) is located inside the dispenser on the upper left side of the housing. T est Procedure: Mechanical Thermostat: 1. Disconnect the dispenser from the power source. 2. Disconnect the black wire of the control thermo- stat fro ...

  • Bunn FMD-3 - page 21

    21 BU N N OFF HI BU N N OFF HI HEATER 26527.0002 THERMOSTAT ASSEMBLY BUNN-O-MATIC CORP TEMPERATURE ADJUSTMENT + - 160 ° 120VAC ® 190 ° FIG. 10 THERMOST A T TERMINALS P1448 BLK from Limit Thermostat BLK from Tank Heater Switch SERVICE (cont.) CONTROL THERMOST A T (cont.) MECHANICAL THERMOSTAT TAN to WHI/BRN in Main Wiring Harness BLK to Main Wiri ...

  • Bunn FMD-3 - page 22

    22 P1449 FIG. 12 DISPENSE SWITCH TERMINALS LEFT CENTER RIGHT BLK RED/BLK BLK RED/WHI BLK RED ORN BLU/WHI ORN BLK/WHI ORN BLU/BLK DISPENSE SWITCH P1631 SERVICE (cont.) Location: The dispense switches are located on the lower outside of the dispenser door . T est Procedure: 1. Disconnect the dispenser from the power source. 2. Open the dispenser door ...

  • Bunn FMD-3 - page 23

    23 FA N FIG. 13 F AN P1436 Location: The fan is located inside the dispenser housing on the right rear of the dispenser base plate. T est Procedures: 1. Disconnect the dispenser from the power sour ce. 2. Disconnect the black and white wires from the fan terminals. 3. With a voltmeter , check the voltage across the black and white wires. Connect th ...

  • Bunn FMD-3 - page 24

    24 ...

  • Bunn FMD-3 - page 25

    25 SERVICE (cont.) FROTHER AND WHIPPER MOTOR (cont.) 29170 091598 ward and at the same time twisting it clockwise. 6. Pull the mixing chamber (2) out of the whipper chamber (4). 7. Remove the two #4-40 screws securing the fan baffle(13) to the whipper motor mouting panel and remove fan baffle. Set aside for reassembly . 8. Remove dispense tip (3) a ...

  • Bunn FMD-3 - page 26

    26 SERVICE (cont.) FIG. 18 HOT/COLD SWITCH P1642.40 HOT/COLD SWITCH (Optional) Location: The hot/cold switch is located on the left side of the whipper motor mounting panel. T est Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the four pin plug from the hot/cold switch and the four pin connector on the main wiring harne ...

  • Bunn FMD-3 - page 27

    27 SERVICE (cont.) INCREASE/DECREASE SWITCH FIG. 20 INCREASE/DECREASE SWITCH P1642.40 Location: The increase/decrease switch is located on the lower left front of the whipper motor mounting panel. T est Procedure: 1. Disconnect the dispenser from the power source. 2. Disconnect the wires from the switch terminals. 3. Check for continuity between th ...

  • Bunn FMD-3 - page 28

    28 SERVICE (cont.) LAMP HOLDER FIG. 22 LAMP HOLDERS P1643.70 Location: The lamp holders are located on the front of the upper panel behind the display panel. T est Procedure: 1. Disconnect the dispenser from the power source. 2. Remove upper door panel (4) and disconnect the door wiring harness from the leads on the lamp holders. 3. Remove lamp fro ...

  • Bunn FMD-3 - page 29

    29 SERVICE (cont.) LAMP ST AR TER and SOCKET Location: The lamp starter (6) is located inside the door assy (1) on the top of the door lower panel (5). T est Procedures: 1. Disconnect the dispenser from the power source. 2. Disconnect the starter leads from the door wiring harness. 3. Remove lamp starter from starter socket. 4. Check for continuity ...

  • Bunn FMD-3 - page 30

    30 FIG. 24 LIMIT THERMOST A T TERMINALS P1800 BLK to Control Thermostat BLK to Tank Heater ...

  • Bunn FMD-3 - page 31

    31 ...

  • Bunn FMD-3 - page 32

    32 SERVICE (cont.) RINSE /RUN SWITCH FIG. 27 RINSE/RUN SWITCH P1452.40 Location: The rinse/run switch is located on the lower right side of the whipper motor mounting panel. T est Procedures: 1. Disconnect the dispenser from the power source. 2. Check for continuity between the center left ter - minal and left bottom terminal, also between the cent ...

  • Bunn FMD-3 - page 33

    33 SOLENOID V AL VE (COLD W A TER - OPTIONAL) FIG. 29 COLD WA TER SOLENOID V AL VE P1637.40 Location: The cold water solenoid valve is located on the left side of the dispenser base just behind the compo- nent bracket. Test Procedures: 1. Disconnect the dispenser from the power source. 2. Disconnect the white and white/yellow wires from the solenoi ...

  • Bunn FMD-3 - page 34

    34 FIG. 32 DISPENSE SOLENOID V AL VE TERMINALS P1645 LEFT CENTER RIGHT TAN to Main Harness WHI to Main Harness ORN to Main Harness WHI to Main Harness WHI/VIO to Main Harness WHI to Main Harness SERVICE (cont.) SOLENOID V AL VES (DISPENSE) FIG. 31 DISPENSE SOLENOID V AL VES P1637.40 Location: The dispense solenoids are located on the upper left sid ...

  • Bunn FMD-3 - page 35

    35 J4 J1 J2 J3 ...

  • Bunn FMD-3 - page 36

    36 SERVICE (cont.) T ANK HEA TER FIG. 35 T ANK HEA TER P1637.40 Location: The tank heater is located inside the tank and se- cured to the tank lid. Test Procedure: 1. Disconnect the dispenser from the power source. 2. With a voltmeter, check the voltage across the black and white wires 120 volt or 240 volt models or black and red wires for 120/208 ...

  • Bunn FMD-3 - page 37

    37 SERVICE (cont.) TANK HEATER (cont.) FIG. 36 T ANK HEA TER TERMINALS P1218 WHI or RED to Main Wiring Harness BLK to Limit Thermostat 29170 080900 ...

  • Bunn FMD-3 - page 38

    38 SERVICE (cont.) FIG. 38 T ANK HEA TER SWITCH TERMINALS P1208 BLK from Main Harness (Mechanical Thermostat) WHI/BRN from Main Harness (Electronic Thermostat) BLK from Main Harness (Mechanical Thermostat) WHI/BRN from Main Harness (Electronic Thermostat) 29170 091598 P1642.40 T ANK HEA TER SWITCH FIG. 37 T ANK HEA TER SWITCH Location: The tank hea ...

  • Bunn FMD-3 - page 39

    39 SERVICE (cont.) If voltage is not present as described, refer to the Wiring Diagrams and check the main wiring harness. 5. Check the voltage between J3-5 and J3-6 on the six pin connector at the control board. Connect the dispenser to the power source. The indication must be 24 volts ac. If voltage is present as described the transformer is oper ...

  • Bunn FMD-3 - page 40

    40 29170 091598 ...

  • Bunn FMD-3 - page 41

    41 GRN GRN GRN GRN WHI WHI WHI WHI WHI WHI SOL LEFT DISPENSE M RIGHT WHIPPER M RIGHT HOPPER SOL RIGHT DISPENSE M LEFT WHIPPER M LEFT HOPPER M CENTER HOPPER M CENTER WHIPPER SOL CENTER DISPENSE BLK BLK BLK WHI/VIO WHI/VIO WHI/VIO WHI WHI WHI WHI WHI WHI WHI WHI RED RED RED RED RED RED RED RED JUMPER PLUG MUST BE USED WHEN COLD DRINK FEATURE NOT INST ...

Manufacturer Bunn Category Coffeemaker

Documents that we receive from a manufacturer of a Bunn FMD-3 can be divided into several groups. They are, among others:
- Bunn technical drawings
- FMD-3 manuals
- Bunn product data sheets
- information booklets
- or energy labels Bunn FMD-3
All of them are important, but the most important information from the point of view of use of the device are in the user manual Bunn FMD-3.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Bunn FMD-3, service manual, brief instructions and user manuals Bunn FMD-3. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Bunn FMD-3.

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A complete manual for the device Bunn FMD-3, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Bunn FMD-3 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Bunn FMD-3.

A complete Bunn manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Bunn FMD-3 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Bunn FMD-3, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Bunn FMD-3, that we can find in the current document
3. Tips how to use the basic functions of the device Bunn FMD-3 - which should help us in our first steps of using Bunn FMD-3
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Bunn FMD-3
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Bunn FMD-3 in a specific country, if it was not possible to solve the problem on our own.

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