SERVICE (cont.)

Electronic Control Assembly Troubleshooting:

Check these items first

Is circuit board popped out of bracket?

Is circuit board wet due to misaligned overflow tube?

Is water in overflow cup activating float switch?

Is overflow cup not making good contact with tank?

Is dispenser being operated with panels removed?

H10X LIQUID LEVEL CONTROL

PROBLEM: Does Not Refill

Overflow Cup Full

Yes

Remove Power

 

 

 

 

 

?

 

 

 

 

 

 

 

Drain cup

 

 

 

No

 

Retry

 

 

 

 

 

 

 

Disconnect Level Probe

 

 

 

 

Voltage present at

Yes

Does Water Flow

Yes

Solenoid Valve

 

 

Replace Probe

 

?

 

 

?

 

 

 

 

 

 

 

 

No

 

No

 

 

 

 

 

 

 

 

Unplug P2 from Circuit Board

 

Replace Solenoid Valve

 

 

Voltage present at

Yes

Repair shorted wires

 

 

Solenoid Valve

 

 

 

 

leading to P2.

 

 

?

 

 

 

 

 

 

 

No

 

 

 

 

Replace Control Assembly

 

 

Triac Assy

 

 

 

 

 

 

H10X LIQUID LEVEL CONTROL

 

 

PROBLEM: Overflows

 

Hot

 

 

 

 

AutomatWater

 

 

 

Electronic

AcFailuCcoorfdfeicareeanllcByerTeWWoSwihyteComeshrtnseTUhm–ensplyiFtInilIlssTWtaVChlaooidsetlanetiWrnoeTanctaIeWtennrksdTtrWaTunoicllktiPFoInoinllws!er!

Drain cup

 

 

arranty!

 

 

Control

WARNING

 

 

 

HAZA

 

 

 

BEFOWREERRESECOMTUOFRVRICNOEGM!

 

 

 

 

VOLRDO

 

 

 

 

DIS TAGEUS

 

 

 

 

POCONN

 

 

 

 

 

Unplug P2 from Circuit Board

 

 

Retry

 

 

 

 

Overflow

 

No

 

 

 

Repair shorted wires

 

 

?

 

 

 

 

leading to P2

 

 

 

 

 

P1991

Yes

 

 

 

 

 

 

FIG. 1 ELECTRONIC CONTROL AND TRIAC

Drain cup

 

 

 

 

 

Disconnect wire from

Refill Probe

Short Probe Wire

To Chassis

Location:

Retry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The electronic control assembly is located inside

 

 

 

 

 

the side of the dispenser. Access will also be needed

Overflow

No

 

 

 

Replace Probe

to the temperature sensor, overflow tube temperature

?

 

 

 

 

 

 

 

sensor, and liquid level probe located on the tank lid

Yes

 

 

 

 

and to the triac assembly located on the inside of the

 

 

 

 

 

Drain cup

 

 

 

 

rear wall.

 

 

 

 

 

 

 

 

 

Disconnect Wire From

 

 

 

 

 

Solenoid Valve

 

 

 

 

General:

Retry

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This system controls the liquid level and water tem-

 

 

 

 

 

perature of the dispenser. These two functions act in-

Overflow

Yes

 

Replace Solenoid Valve

dependently of each other and should be tested sepa-

?

 

 

 

 

 

 

 

 

 

 

 

 

rately.

No

 

 

 

 

Replace Control Assembly

10

10889 091599

 

Page 10
Image 10
Bunn H10X service manual Location, To the triac assembly located on the inside, Rear wall, General

H10X specifications

The Bunn H10X is a state-of-the-art coffee brewer designed for both commercial and high-demand home environments. Renowned for its reliability and superior performance, the H10X is engineered to deliver exceptional coffee quality while streamlining the brewing process.

One of the main features of the Bunn H10X is its capacity to brew large quantities of coffee efficiently. It boasts a 10-gallon tank, allowing it to produce up to 20 gallons of freshly brewed coffee in just one hour. This makes it an ideal choice for offices, cafes, and businesses that require a constant supply of coffee for their customers or employees.

The H10X is equipped with advanced brewing technology that ensures optimal extraction of flavor from coffee grounds. Its patented Pulse Brew feature enhances the brewing process by controlling the flow of water through the coffee grounds, enhancing flavor extraction and improving the overall taste profile. This technology is particularly beneficial for specialty coffees, where nuanced flavors are essential.

Additionally, the Bunn H10X incorporates a digital thermal control system, allowing users to adjust brewing temperatures for their specific coffee types. This precise control ensures that the coffee is brewed at the ideal temperature, maximizing flavor and aroma while minimizing bitterness. The machine also features a built-in water tank heater, providing consistent brewing temperatures throughout the day.

User-friendliness is another hallmark of the H10X. The intuitive interface includes programmable options for brewing strength and timing, enabling users to customize their coffee experience easily. An LCD display provides real-time updates on brewing status, making it simple to monitor the process.

Durability is a key characteristic of the Bunn H10X. Constructed from high-grade materials, this coffee brewer is built to withstand the demands of a bustling environment. Enhanced insulation keeps coffee hot for extended periods while reducing energy consumption.

For ease of maintenance, the H10X features a removable brew basket and a straightforward cleaning process. This design not only helps maintain the unit's performance but also extends its lifespan.

In summary, the Bunn H10X is a powerful, efficient, and user-friendly coffee brewer that stands out in the marketplace. With its impressive capacity, advanced brewing technologies, and robust construction, it is an ideal choice for anyone seeking a high-quality coffee solution.