Instruction/ maintenance manual of the product G9-2T DBC Bunn
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GRINDERS Includes: MHG, FPG, FPG-2, LPG-2, G1, G2, G3, G2 trifecta™, G9, G9WD, G9-2 & G9-2T DBC SER VICE & REP AIR MANU AL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINO.
2 BUNN-O-MA TIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years.
3 CONTENTS Warranty and T rademark .................................................................................................3 Introduction ........................................................................................................
4 INTRODUCTION The Grinder will store various amounts of whole bean coffee and grind it to a preset grind and amount into an awaiting funnel and filter or French Press from most commercial drip coffee brewers. The equipment is only for indoor use on a sturdy counter or shelf.
5 41545 111711 Figure 1 Step 1 - Remove & discard tape holding funnel arm in place. (Figure 1) Step 2 - Remove & discard two silicon tubes between funnel guide & housing. (Figure 2) Step 3 - Remove four screws in front housing panel. (Figure 3) Step 4 - Remove & discard shim under transducer .
6 Model G9-2 Off/On/Start Switch OFF - (upper position) Switching to this position stops all operation of the grinder . ON - (middle position) The switch will return to this position after a grind cycle has begun and will remain in this position after grinding has ceased.
7 URN O F F S T A R T ON CARAFE P1300 Batch Selector Switch (Optional) URN - Switching to this position allows the correct amount of beans to be dispensed when grinding a large batch. CARAFE - Switching to this position allows the correct amount of beans to be dispensed when grinding a small batch.
8 Model G9-2T DBC Grind Pad (a) Pressing initiates a timed grind cycle. Stop Pad (b) Pressing ends the operation of the grinder . ® P AD (c) Pressing the ® pad allows programming access.
9 OPERA TING CONTROLS (Continued) P2947 P2947 Model FPG Off/On/Start Switch OFF - (upper position) Switching to this position stops all operation of the grinder . ON - (middle position) The switch will return to this position after a grind cycle has begun and will remain in this position after grinding has ceased.
10 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 vice Department.
11 TROUBLESHOOTING (cont.) Problem Probable Cause Remedy Each motor is equipped with a temperature and current overload protection feature which will im - mediately shut off the motor when an overload has occurred. Check the grinder for obstructions. Refer to Service - Motor for testing pro- cedures.
12 Begin each grind cycle by visually inspecting the hopper(s) for ample supplies of whole bean coffee. Foreign materials must not block the openings at the bottom of the hopper(s). Refer to Service - Solenoids for test - ing procedures. Refer to Service - Timer for testing procedures.
13 PROBLEM PROBABLE CAUSE REMEDY TROUBLESHOOTING (cont.) Incorrect coffee grind dispensed. Excessive chaff Grinder only dispenses from one hopper Timer will not display or displays incorrectly . Incorrect weight of coffee dis- pensed 1. Burr adjustment 1.
14 SERVICE This section provides procedures for testing and replacing various major components used in this grinder should service become necessar y . Refer to T roubleshooting for assistance in determining the cause of any problem.
15 SERVICE (Cont.) FIG. 1 BAG SENSOR SWITCH P1704 Location: The bag sensor switch is located inside the lower front of the grinder housing behind the coffee dispens - ing chute. T est Procedure: 1. Disconnect the grinder and place a coffee bag behind the dispense chute.
16 SERVICE (Cont.) AC MOTOR AND GRIND CHAMBER FIG. 3 AC MOTOR AND GRIND CHAMBER P1704 Location: The motor is located inside the upper part of the grinder housing. T est Procedure: 1. Remove the plug located on the right side of the housing. Press the red “Reset” button visible through the opening.
17 SERVICE (Cont.) WHI/BLU to Relay N.O.(K4) WHI to Cordset (120V) RED/BLK to Cordset (230V) GRN to Ground (120V) GRN/YEL to Ground (230V) P1310 FIG. 4 AC MOTOR TERMINALS 11. Clean all grinding burrs and mounting sur faces before reassembly . 12. Install the four .
18 SERVICE (Cont.) FIG. 5 GRIND CHAMBER COMPONENTS P1708 20 7 6 4 5 16 18 1 19 17 11 10 9 8 3 2 1 13 7 12 14 15 AC MOTOR AND GRIND CHAMBER (cont.) Removal and Replacement - Grind Chamber - Fig. 5: 1. Loosen the two set screws (16) securing the grind selector knob to the grind selector dial plate (18) and remove knob.
19 SERVICE (Cont.) DC MOTOR AND GRIND CHAMBER - G1MD ONL Y FIG. 6 DC MOTOR AND GRIND CHAMBER P1706 Location: The motor is located inside the upper part of the grinder housing. T est Procedures: 1. Remove the rear panel. Press the red “Reset” button visible on the rear of the motor .
20 SERVICE (Cont.) DC MOTOR AND GRIND CHAMBER - G1MD ONL Y (cont.) BLU to BLU from Rectifier BLU to WHI/BLU from Relay (3) RED to Rectifier (-) BLK to Rectifier (+) FIG. 7 DC MOTOR TERMINALS P1710 10. Remove motor and bracket out the rear of the grinder housing.
21 SERVICE (Cont.) DC MOTOR AND GRIND CHAMBER - G1MD ONL Y (cont.) FIG. 8 MOTOR AND GRIND CHAMBER REMOV AL P1711 5 7 6 16 18 1 19 17 9 8 11 10 3 4 2 1 7 13 12 14 15 22 21 20 23 11. Install burr (7) on burr auger rotor/spring assem- bly (6) securing with two .
22 SERVICE (Cont.) P1022 Location: The motor is located inside the hopper assembly . T est Procedures: 1. Disconnect grinder from the power supply . 2. On Model LPG-2E, disconnect the black wire and the white wire to the motor from the main wiring harness, the red wire to the circuit breaker and the red wire to the Off/On/Start switch.
23 SERVICE (Cont.) 1. Retaining Ring W/Hopper Gasket 2. Slide Plate, Solenoid Plunger and Spring 3. Spacer Plate 4. Mounting Ring, Solenoid and Solenoid Mounting Plate 5. Setscrew , #8-32 6. Motor and Burr Housing P1050 1 2 3 4 5 2 6 FIG. 11 SOLENOID AND GA TES 8.
24 SERVICE (Cont.) 20. Remove the two #8-32 flat head screws securing the motor cover (18) to the motor and housing assembly (17) and remove the cover . Set aside for reassembly . 21. Discard old motor and housing assembly . 22. Place new motor on it’ s side and install motor cover (18) using two #8-32 flat head screws.
25 SERVICE (Cont.) DECHAFFER (Models LPG & FPG) FIG. 13 DECHAFFER P1062 Location: The dechaffer spring plates are located in the burr housing cap. 1 FIG. 14 DECHAFFER REMOV AL/REPLACEMENT P1063 2 Removal and Replacement: Refer to Fig. 14 1. Remove coffee beans from hopper(s).
26 SERVICE (Cont.) 2. The entire wiring harness must be fed into the bottom of the grinder housing through the hole in the motor mounting plate. 3. Remove both 6-32 screws beneath the upper front inspection panel. 4. Remove the six 10-32, hex head screws on top of the motor mounting plate.
27 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1. Indicator Adjustment Cap & Decal 2. Adjusting Screw 3. Burr Housing Cap 4. Rotor Cup 5. Shear Plate 9 8 7 6 5 4 3 2 1 6. Rotor 7. Spring 8. Burr (Rotating) 9. Burr (Stationary) P1311 Removal and Replacement - GRIND CHAMBER 1.
28 SERVICE (Cont.) SNUBBER (Models G9, G9-2, MHG) CO A RSE FI N E T H O R O U G H L Y C L E A N G R I N D C H A M B E R B E F O R E R E A S S E M B L Y E M P T Y H O P P E R B E F O R E R E M O V I N G T H I S C O V E R .
29 CALIBRA TION 1. Place empty funnel into funnel rails. 2. Press and hold the right hidden (copyright) button until the “MACHINE TYPE” menu appears. (See level 2 programming) 3. Press the middle button under the screen until the “CALIBRA TE SCALES?” menu appears.
30 P1745 FIG. 20 CAP ACITOR Location: The capacitor is located inside the front panel of the hopper housing next to the Off/On/Start switch. T est Procedure: 1. Disconnect grinder from the power source. 2. Visually inspect the capacitor for leakage. If leakage is visible, replace the capacitor .
31 SERVICE (Cont.) Circuit Breaker (Models LPG, LPG-2E, FPG, FPG-2 DBC) P1036 FIG. 22 CIRCUIT BREAKER P1037 FIG. 23 CIRCUIT BREAKER TERMINALS RED from Motor -LPG-2E BLK from Start Switch-LPG BLK from Power Cord Removal and Replacement: 1. Remove the wires from the circuit breaker .
32 SERVICE (Cont.) P1038 Hopper Selector Switch (Model LPG-2E only) P1029 Location: The Hopper Selector Switch is located in the lower left front of the hopper housing. T est Procedure: 1. Disconnect grinder from the power supply . 2. Remove all wires from the switch terminals.
33 SERVICE (Cont.) Hopper Selector Switch (Model G9-2 only) FIG. 26 HOPPER SELECTOR SWITCH P594 Location: The hopper selector switch is located in the center on the front of the hopper housing. T est Procedure: 1. Disconnect the grinder from the power source.
34 SERVICE (Cont.) Location: The Off/On/Start switch is located to the left side on the front of the housing above the upper front inspec- tion panel. T est Procedure: 1.
35 SERVICE (Cont.) URN O F F S T A R T ON CARAFE P1300 Location: The Urn/Carafe switch is located to the left side on the front of the housing above the upper inspection panel. T est Procedure: 1. Disconnect the grinder from the power supply . 2. Remove the tan, yellow and green wires from the switch.
36 SERVICE (Cont.) FIG 32 BA TCH SELECTOR SWITCH Location: The batch selector switch is located on the left front of the hopper housing. T est Procedure: 1. Disconnect the grinder from the power source. 2. Open hopper lid and loosen four screws inside the hopper and remove hopper .
37 SMALL MEDIUM LARGE P2946 SERVICE (Cont.) FIG 34 POTENTIOMETERS Location: The potentiometer switches are located on the top rear of the hopper housing. T est Procedure: 1. Disconnect the grinder from the power source. 2. Open hopper lid and loosen four screws inside the hopper and remove hopper .
38 SERVICE (Cont.) + A C A C Removal and Replacement: 1. Disconnect the wires from the rectifier . 2. Remove the #10-32 screw securing the rectifier to the motor mounting bracket. 3. Remove the rectifier and discard. 4. Install new rectifier on the rear of the motor mount - ing bracket and secure with a #10-32 screw .
39 SERVICE (Cont.) Location: The relay is located on the timer bracket in the grinder base. The bracket can be removed by loosening the two 8-32 screws beneath the timer dial.
40 SERVICE (Cont.) Location: The relay is located on the grinder base inside the lower housing. T est Procedure: 1. Disconnect the grinder from the power source and place a coffee bag behind the dispense chute. 2. Check the voltage across the white/orange and white or red/black wires on terminals A & B of the relay with a voltmeter .
41 SERVICE (Cont.) WHI/BLU from Motor to Relay K-4 WHI/ORN from Bag Sensor Switch (A) FIG. 41 RELA Y TERMINALS P1707 RELA Y (cont.) WHI to Main Harness 120V (B) RED/BLK to Main Harness 240V (B) WHI/VIO from Switch to Relay K-6 WHI/RED from Switch to Relay K-7 & K-9 Removal and Replacement (120 Volt and 240V 60 Hz Models): 1.
42 SERVICE (Cont.) Location: The relay is located either on the timer bracket or on the component mounting bracket in the grinder base. The bracket can be removed by loosening the two 8-32 screws beneath the timer dial. T est Procedure: 1. Disconnect the grinder from the power supply .
43 SERVICE (Cont.) Location: The slide plates are located on the solenoid mount- ing plate immediately beneath the hopper openings. The slide plates must always remain flat for proper operation. T est Procedure: With the solenoid mounting plate attached to the hopper , push the solenoid plunger into the coil.
44 SERVICE (Cont.) Location: The slide plates are located on the solenoid mount- ing plate immediately beneath the hopper openings. The slide plates must always remain flat for proper operation. T est Procedure: With the solenoid mounting plate attached to the hopper , push the solenoid plunger into the coil.
45 SERVICE (Cont.) Left Right WHI/ORN to Timer P4-4 RED/BLK to Right Solenoid RED/BLK to Timer P4-7 WHI/YEL to Timer P4-5 RED/BLK to Left Solenoid P612 Location: The solenoids are located on the mounting plate immediately beneath the hoppers. T est Procedure: 1.
46 SERVICE (Cont.) Timer (Model LPG-2E) P1061 Location: The timer is located inside the hopper housing just behind the left solenoid. T est Procedure: 1.
47 SERVICE (Cont.) Timer (Model LPG-2E) Timer (Models LPG, FPG) P1748 FIG. 49 TIMER Location: The timer is located inside the rear access panel. Adjustments can be made by removing the 2” hole plug. T est Procedure: 1. Disconnect grinder from the power source.
48 SERVICE (Cont.) Location: The timer is located on the timer bracket in the grinder base. The bracket can be removed by loosening the two 8-32 screws beneath the timer dial(s).
49 SERVICE (Cont.) D IS PE N S E TIM E ( S e c o n d s ) D IS P L AY In c r e a s e D e c r e a s e Rea do ut w i ll be d i splaye d for 5 m i nutes . T im er can only be adj us ted w hi le readout i s d ispla ye d . + WARNING HAZA RDOU S VOLT AGE U N P LU G G R I N D E R BE F OR E R E M O V I N G R I G H T DI S PENS E T IME (S E CO ND S ) 3.
50 SERVICE (Cont.) Control Board (Model MHG) Location: The control board is located on the component mounting bracket mounted to the grinder base inside the front access panel. The bracket can be removed by loosening the two 8-32 screws securing the bracket to the grinder base.
51 SERVICE (Cont.) Control Board (Models FPG-2 & G9-2 DBC) Location: The control board is located inside the hopper housing behind the membrane switch. T est Procedure: 1. Check the continuity of the wiring between the component and the control board.
52 SERVICE (Cont.) Membrane Switches (Model MHG only) Location: The membrane switch is located on the front of the hopper housing. T est Procedure: 1. Press and hold the right hidden button to enter programming. 2. Scroll through the menus to Ser vice T ools and select YES.
53 P E R S ON AL I N JU R Y HAZA R D. KEE P FINGERS A ND FOREIGN OBJE C TS OUT OF HOPPER OR CHUTE OPENING. CAUTI O N SERVICE (Cont.) Membrane Switches (Models FPG-2 & G9-2 DBC) Location: The membrane switch is located on the front of the hopper housing.
54 SERVICE (Cont.) EMI Filter (Models FPG & FPG-2) FIG 60 EMI FIL TER FIG 61 EMI FIL TER TERMINALS Location: The EMI Filter is located inside the rear cover of the grinder housing. T est Procedure: 1. Disconnect the dispenser from the power source.
55 SERVICE (Cont.) Funnel Sensing Coil (Models MHG & G9-2 DBC) Location: The funnel sensing coil is located inside of the coil cover . T est Procedure: 1. Disconnect the grinder from the power supply . 2. Remove the two 6-32 screws attaching the coil cover to the front of the grinder housing.
56 SERVICE (Cont.) Memory Clock Board (Model MHG) Location: The memory clock board is located on the component mounting bracket mounted to the grinder base inside the front access panel. T est Procedure: 1. Disconnect the grinder from the power supply .
57 Display Board (Model MHG) Location: The display board is located inside the hopper housing behind the membrane switch. T est Procedure: 1. Press and hold the upper right hidden button to enter the Programming menus. 2. Scroll to SERVICE TOOLS menu, and press the button under "YES".
58 TRIAC MAP for MHG MOV1 controls T ransformer @ J5-4,5,6 TH1 & MOV2 controls Left Gate @ J5-3 TH2 & MOV3 controls Relay @ J5-2 TH3 & MOV4 controls Right Gate @ J5-1 41545 122209.
59 TRIAC MAP for FPG-2 DBC and G9-2 DBC TH1 & MOV1 controls Left Gate @ J1-1 TH2 & MOV2 controls Relay @ J1-2 TH3 & MOV3 controls Right Gate @ J1-3 MOV4 controls T ransformer @ J1-4,5,6 41.
60 SCHEMA TIC WIRING DIAGRAM G9-2 DBC, G9-2T DBC W/SMAR T FUNNEL™ N W H I B L K L1 LEFT GA TE LIMIT THERMOS TAT LIMIT THERMOS TAT SOL SOL WHI/ORA WHI/GRN WHI/YEL BLK WHI RED/BLK J1-6 J1-6 J8-3 J8-1 .
61 SCHEMA TIC WIRING DIAGRAM G9-2 DBC, G9-2T DBC W/SMAR T FUNNEL™ N W H I B L K L1 LEFT GA TE LIMIT THERMOS TAT LIMIT THERMOS TAT SOL SOL WHI/ORA WHI/GRN WHI/YEL BLK WHI RED/BLK J1-6 J1-6 J8-3 J8-1 .
62 SCHEMA TIC WIRING DIAGRAM G9-2TB DBC W/SMAR T FUNNEL™ N W H I B L K L1 LEFT GA TE LIMIT THERMOS TAT LIMIT THERMOS TAT SOL SOL WHI/ORA WHI/GRN WHI/YEL BLK WHI RED/BLK J1-6 J1-6 J8-3 J8-1 J6-10 J6-.
63 SCHEMA TIC WIRING DIAGRAM MHG N B L K W H I L1 RIGHT GA TE LEFT HOPPER SENSOR LIMIT THERMOS TAT LIMIT THERMOS TAT WHI/YEL WHI/YEL WHI/GRN WHI/ORN WHI/ORN YEL ORN YEL ORN BLK WHI WHI WHI WHI J5-5 J5.
64 WIRING DIAGRAMS 1 5 10 16 J19 4 J6 1 J12 5 1 J1 5 1 9 8 ST A TIC SHIELD SWITCH UNIT ASSY RIGHT HOPPER COIL LEFT HOPPER COIL FUNNEL COIL T1 LOAD LINE VIO VIO ORG ORG YEL YEL K1 RIGHT GA TE RELAY LEF.
65 27103.0000D 04/07 ©1996 BUNN-O-MA TIC CORPORA TION SCHEMA TIC WIRING DIAGRAM LPG-2E, LPGB-2E N L1 BLK RED WHI 100 VOL TS AC 120 VOL TS AC 2 WIRE SINGLE PHASE 60 HZ GRN 3 AMP 2 3 4 5 6 1 7 8 9 10 TIMER ASSY .
66 WIRING DIAGRAMS 41545 122209.
67 BLK WHI RED RED 10529.0000C 3/92 © 1990 BUNN-O-MA TIC CORPORA TION SCHEMA TIC WIRING DIAGRAM LPG & LPG2 N L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK WHI/BL.
68 BLK WHI RED RED 10529.0002E 8/01 © 1990 BUNN-O-MA TIC CORPORA TION SCHEMA TIC WIRING DIAGRAM LPG-A L2 L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK WHI/BLU WHI/BR.
69 BLK WHI RED RED 10529.0003E 10/98 © 1998 BUNN-O-MA TIC CORPORATION SCHEMA TIC WIRING DIAGRAM LPG W/Capacitor L1 P1 2 3 4 5 6 1 1 2 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK BLK WHI/B.
70 BLK WHI RED RED 10529.0001D 10/98 © 1990 BUNN-O-MA TIC CORPORA TION SCHEMA TIC WIRING DIAGRAM LPG-B N L1 B L K P1 2 3 4 5 6 1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN RED WHI/BLK BLK WHI/BLU WHI/BR.
71 WHI/VIO WHI/VIO WHI/BLU WHI/ORA 1 or A GRN or GRN/YEL 230V GRN/YEL L1 N SW1 BLK WHI/RED SW2 K 0 or B M L1 L2 100 VOL T AC 120 VOL T AC 230 VOL T AC 240 VOL T AC 2 WIRE + GRD SINGLE PHASE 50/60 HZ W.
72 10173-0000F 4/91 © 1987 BUNN-O-MA TIC CORPORA TION WHI/GRN BLK K1 WHI/BLU M L2 L1 120 VOL TS AC 2 WIRE SINGLE PHASE 60 HZ L1 N GREEN K1 N.O. SCHEMA TIC WIRING DIAGRAM G9 TIMER WHI/RED WHI/YEL WHI/.
73 10187-0000C 02/08© 1987 BUNN-O-MATIC CORPORATION WHI/GRN BLK K1 WHI/BLU M L2 L1 230 VOLTS AC 2 WIRE + GND SINGLE PHASE 50 HZ L1 L2 GREEN K1 N.O. SCHEMATIC WIRING DIAGRAM G9A HD TIMER WHI/RED WHI/R.
74 4 3 WHI/GRN 1 BLK WHI/BLU L2 L1 120 VOL TS AC 2 WIRE SINGLE PHASE 60 HZ 10388-0000B 12/88 © 1988 BUNN-O-MA TIC CORPORA TION L1 N GREEN K1 N.O. SCHEMA TIC WIRING DIAGRAM G9 TIMER 3 2 4 5 WHI/RED WH.
75 BLU VIO YEL GRY TA N ORA RED/BLK WHI WHI/GRN WHI/ORA WHI/YEL RED/BLK BLK WHI/RED WHI/BLU M L2 L1 WHI/BLU WHI/BLK YEL 230 VOL TS AC 2 WIRE SINGLE PHASE 50 HZ 10768.
76 WIRING DIAGRAMS 41545 122209.
77 WIRING DIAGRAMS BLK WHI RED RED 36781.0000A 04/04 ©2004 BUNN-O-MA TIC CORPORA TION SCHEMA TIC WIRING DIA GRAM FPG N L1 RED WHI/BLK BLK WHI/BLU WHI/BRN WHI RED WHI/BLK BLK WHI/BLU WHI/BRN WHI GRN BLK SM MED LG RED WHI/BRN WHI/BLU 1 2 3 4 5 P2 BLK RED WHI/BRN WHI/BLU DC MOTOR BLK WHI RED RED 4 1 2 3 P3 GREEN 3 AMP TIMER SELECT SW .
78 WIRING DIAGRAMS SCHEMA TIC WIRING DIAGRAM FPG-2 DBC, FPGB-2 DBC N W H I W H I / B L K B L K L1 LEFT GA TE LIMIT THERMOS TAT LIMIT THERMOS TAT SOL SOL WHI/ORA WHI/GRN WHI/YEL RED WHI/BLK WHI/BLK J1-6 J1-6 J6-10 J6-5 J6-1 CONTROL PC BOARD COIL RELA Y RIGHT GA TE 1 11 SHIELD SWITCH UNIT ASSY B2 C4 C5 C6 A2 A1 C3 C2 C1 WHI RED RED RED BLU BLK 36706.
79 WIRING DIAGRAMS N L1 LEFT GA TE LIMIT THERMOST AT LIMIT THERMOS TAT SOL WHI/ORA WHI/ORA WHI/GRN WHI/YEL WHI/YEL RED WHI WHI WHI WHI WHI/BLK WHI WHI WHI WHI GRN GRN WHI WHI J1-6 J1-1 J6-10 J6-5 J6-1.
An important point after buying a device Bunn G9-2T DBC (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 G9-2T DBC 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 G9-2T DBC - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn G9-2T DBC you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn G9-2T DBC will certainly help you make a decision on the purchase.
If you already are a holder of Bunn G9-2T DBC, 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 G9-2T DBC.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn G9-2T DBC. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn G9-2T DBC 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
