Bunn H5E H5X service manual Troubleshooting, Problem Probable Cause Remedy

Page 6

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 Tech- nical Service Department.

•Inspection, testing, and repair of electrical equipment should be performed only by qualified service person- nel.

•All electronic components have 120 – 240 volt ac and low voltage dc potential on their terminals. Shorting of terminals or the application of external voltages may result in board failure.

•Intermittent operation of electronic circuit boards is unlikely. Board failure will normally be permanent. If an intermittent condition is encountered, the cause will likely be a switch contact or a loose connection at a terminal or crimp.

•Solenoid removal requires interrupting the water supply to the valve. Damage may result if solenoids are energized for more than ten minutes without a supply of water.

•The use of two wrenches is recommended whenever plumbing fittings are tightened or loosened. This will help to avoid twists and kinks in the tubing.

•Make certain that all plumbing connections are sealed and electrical connections tight and isolated.

•This dispenser is heated at all times. Keep away from combustibles.

WARNING

•Exercise extreme caution when servicing electrical equipment.

•Disconnect the dispenser from the power source when servicing, except when electrical tests are speci- fied.

•Follow recommended service procedures

•Replace all protective shields or safety notices

Problem

Probable Cause

Remedy

Equipment will not operate.

1. No power or incorrect voltage

(A) Check the terminal block for the cor-

 

 

rect voltage. It should be:

 

 

a.) 100 to 120 volts ac across the black and

 

 

white terminals for 100 to 120 volt models

 

 

or,

 

 

b.) 200 to 240 volts ac across the red and

 

 

black terminals for 200 to 240 volt models.

 

 

(B) Check circuit breakers or fuses.

 

2. Safety overflow switch

Refer to Service – safety overflow switch

 

 

for testing procedures. See page 17.

6

10420 011599

 

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Bunn Contents WarrantyIntroduction User Notices Electrical Requirements Plumbing RequirementsElectrical Hook-Up Initial SET-UP CleaningWall Mounted Installation Draining the DispenserTroubleshooting Problem Probable Cause RemedyTroubleshooting Problem Probable Cause Deposits. Delime as required Water boils continuously Temperature controlLime build-up Dispenser is making unusual noisesService Component AccessLiquid Level Control Flow Charts LocationGeneral This system controls the liquid level and water tem Service Electronic Controls Liquid Level Control Test ProcedureProblem Boils Excessively Fills Cup Service Electronic Controls Wiring Connections Adjustments 5A. to Increase the TemperatureService Limit Thermostat Test ProcedureLocation Limit thermostat is located on the tank lid Service Safety Overflow Switch SwitchService Solenoid Valve Solenoid ValveService Tank Heater Location Tank heater is located in the tank lidCheck for continuity across the tank heater termi- nals Wiring Diagrams Volts a CWiring Diagrams Schematic Wiring Diagram H5E Volts a C

H5E H5X specifications

The Bunn H5E and H5X coffee brewers are renowned for their high-quality brewing capabilities, designed to meet the demands of both commercial and specialty coffee environments. These brewers stand out due to their innovative features, reliable performance, and user-friendly designs, making them a preferred choice for cafes, restaurants, and other establishments.

One of the primary features of the Bunn H5E and H5X models is their high-efficiency brewing system. These machines utilize a digital brewing control that ensures precise water temperatures and accurate brew times. This technology allows baristas to achieve optimal extraction from coffee grounds, resulting in a consistent, flavorful cup of coffee every time. The machines are equipped with a stainless-steel hot water tank, allowing for rapid brewing and serving for high-volume coffee demands.

The H5E model focuses on versatility in brewing methods. It can accommodate a wide range of coffee types, from traditional drip coffee to specialty brews. With its adjustable brew basket size, users can easily switch between smaller and larger batches, making it suitable for various business sizes and needs. Additionally, the H5X variant features a high-volume design, perfect for busy environments where efficiency and speed are crucial.

Both models incorporate advanced technology such as the Cold Brew Activation feature, allowing users to make cold brew coffee efficiently. The programmable settings enable baristas to customize brewing parameters according to their specific coffee recipes, providing the ability to create unique flavor profiles that cater to customer preferences.

Durability is another significant characteristic of the Bunn H5E and H5X brewers. Built with heavy-duty materials, these machines are designed to withstand the rigorous demands of a high-traffic environment. They also feature an easy-to-clean design, ensuring that maintenance is fast and straightforward.

In summary, the Bunn H5E and H5X coffee brewers are optimized for efficiency, adaptability, and durability, making them ideal for any coffee-serving establishment. Their innovative brewing technologies and user-friendly features empower baristas to deliver exceptional coffee while minimizing downtime, ensuring that every customer enjoys a perfect cup of coffee crafted to perfection.
Top Page Image Contents