SERVICE (cont.)

CONTROL BOARD - FMD-2 ONLY (CONT.)

7.Check the voltage across the red (+) terminal and the black (-) terminal of the auger motor with a voltmeter. Connect the dispenser to the power source. Press and hold the appropriate dispense switch. After a delay of about .6 seconds, the indication must be between +4.0 and +24.5 volts dc.

If the voltage is present as described, the hopper motor control circuitry is operating properly.

If the voltage is not present as described, replace the control circuit board.

Removal and Replacement:

1.Disconnect the three plugs on the main wiring harness from the connectors on the control board.

2.Remove the four #6-32 keps nuts securing the control board to the component bracket.

3.Remove control board and discard.

4.Install new control board on the component bracket using four #6-32 keps nuts.

5.Reconnect the three plugs on the main harness to the connectors on the control board.

J2

J3

 

 

J2

 

 

 

J3

 

 

J4

J1

 

 

J1

J4

 

 

P1640

FIG. 12 CONTROL BOARD CONNECTORS

DISPENSE SWITCH(S) - FMD-1 & FMD-2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CU

P

 

 

 

 

 

 

 

 

 

 

 

 

 

TIL

 

 

 

 

 

 

 

 

 

 

 

 

 

UN

 

 

 

 

 

 

 

 

 

 

 

 

TT

ON

LE

AS

 

 

 

 

 

 

 

 

 

 

 

BU

RE

 

 

 

 

 

 

 

 

 

 

 

HO

LD

EN

 

 

 

 

 

 

 

 

 

 

and

 

, TH

 

 

 

 

 

 

 

 

 

 

SH

ULL

 

 

 

 

 

 

 

 

 

 

PU

2

/3 F

 

 

 

 

 

 

 

 

 

 

 

 

IS

 

 

 

 

 

 

 

 

 

 

 

 

 

FULL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IS 2/3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N W

HEN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RELEASE

 

PLACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HERE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FMD-1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CU

P

 

 

 

 

 

 

 

 

 

 

 

 

UN

TIL

 

 

 

 

 

 

 

 

 

 

 

 

TT

ON

LE

AS

 

 

 

 

 

 

 

 

 

 

 

 

RE

 

 

 

 

 

 

 

 

 

 

 

 

BU

 

 

 

 

 

 

 

 

 

 

 

HO

 

, H

EN

 

 

 

 

 

 

 

 

 

 

and

 

 

 

 

 

 

 

 

 

 

 

SH

ULL

 

 

 

 

 

 

 

 

 

 

PU

2

/3 F

 

 

 

 

 

 

 

 

 

 

 

 

IS

 

 

 

 

 

 

 

 

 

 

 

 

 

FULL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IS 2/3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WHEN

 

 

 

 

 

 

 

 

 

 

 

 

 

RELEASE

 

PLACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HERE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUP

 

 

 

 

 

 

 

 

 

 

 

 

 

PLACE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HERE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CUP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FMD-2

 

FIG.13 DISPENSE SWITCH

P1614

 

Location:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The dispense switch(es) is (are) located on the lower outside of the dispenser door.

21

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Page 21
Image 21
Bunn FMD-2, FMD-1 service manual Dispense Switch

FMD-2, FMD-1 specifications

The Bunn FMD-2 is an advanced coffee dispensing machine designed for high-traffic environments, such as cafés, restaurants, and convenience stores. This commercial coffee equipment stands out for its reliability, efficiency, and user-friendly features, making it a preferred choice among coffee retailers.

A standout feature of the FMD-2 is its dual coffee bean hopper system, which allows for the storage and dispensing of two different coffee blends simultaneously. This versatility provides establishments the opportunity to cater to varying customer preferences, whether they prefer a robust espresso or a smooth medium roast. The hoppers can hold a significant amount of coffee beans, ensuring that the machine can keep up with high demand without the need for frequent refilling.

The FMD-2 incorporates state-of-the-art brewing technology, including the ability to brew coffee quickly while preserving the essential flavor characteristics of the beans. Its precision brewing process ensures consistency in taste and quality, which is crucial for customer satisfaction in a commercial setting. The machine is equipped with adjustable brew times and temperatures, allowing operators to fine-tune the brewing process according to specific coffee styles or customer preferences.

Another notable characteristic of the Bunn FMD-2 is its digital interface, which features an intuitive touchscreen display. This modern interface simplifies the operation of the machine, enabling baristas and staff to quickly train and adapt to its functionalities. The display provides real-time feedback on brewing status, maintenance reminders, and settings adjustments, making it easier to ensure optimal performance and reduce downtime.

In addition to its user-friendly design, the Bunn FMD-2 is constructed for durability. Its stainless steel exterior not only enhances its aesthetic appeal but also ensures that it can withstand the rigors of daily use in a bustling environment. The machine is designed with easy maintenance in mind, allowing for straightforward cleaning and servicing to keep it operating at peak performance.

Overall, the Bunn FMD-2 is a versatile, reliable, and innovative coffee dispensing solution that meets the demands of today’s coffee enthusiasts. With its dual hopper system, precision brewing technology, and user-friendly interface, it’s an ideal choice for any establishment looking to elevate their coffee offerings and enhance customer experience.