Bunn DV, H5X, H5E service manual Problem Probable Cause Remedy

Page 5

TROUBLESHOOTING (cont.)

 

 

 

Problem

Probable Cause

Remedy

Equipment will not operate

2.

Safety overflow switch

Refer to Service – safety overflow switch

(cont.)

 

 

for testing procedures.

Automatic refill will not oper-

1.

No water

Check plumbing and shut-off valves.

ate after drawing hot water.

2.

Water strainer/flow control

(A) Direction of flow arrow must be point-

 

 

 

 

ing towards dispenser.

 

 

 

(B) Remove the strainer/flow control and

 

 

 

check for obstructions. Clear or replace.

 

3.

Liquid level system

Refer to Service – electronic controls for

 

 

 

testing procedures.

 

4.

Solenoid valve

Refer to Service – solenoid valve for test-

 

 

 

ing procedures.

Water flows into the tank con-

1.

Solenoid valve

Refer to Service – solenoid valve for test-

tinuously (Dispenser discon-

 

 

ing procedures.

nected from power source).

 

 

 

Water flows into the tank con-

1.

Liquid level system

Refer to Service – electronic controls for

tinuously (Dispenser connect-

 

 

testing procedures.

ed to power source).

 

 

 

Water is cold.

1.

Safety overflow switch

Refer to Service – safety overflow switch

 

 

 

for testing procedures.

 

2.

Limit thermostat

Refer to Service – limit thermostat for

 

 

 

testing procedures.

CAUTION – Do not eliminate or bypass limit thermostat. Use only B.O.M. replacement part #23717.0003.

3.

Tank heater

Refer to Service – tank heater for testing

 

 

procedures.

4.

Temperature control

Refer to Service – electronic controls for

 

 

testing procedures.

5

42311 071310

 

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Contents Phone 217 529-6601 FAX 217 H10X/H5X H5E/DV PC H5 ElementBUNN-O-MATIC Commercial Product Warranty Contents Problem Fault CodesFlashes Description of Failure RemedyProblem Probable Cause Remedy Noises Water supply Ready indicator will not light Water boils continuously Temperature controlLime build-up Deposits. Delime as requiredComponent Access H10X Component Access H5E/DV-PC/XLiquid Level Control Flow Charts ServiceElectronic Controls LocationService Service Electronic ControlsLiquid Level Control Test Procedure H5X Thermostat Replace the electronic control board Location Limit thermostat is located on the tank lid Service Limit ThermostatSafety Overflow Wiring Service Safety Overflow SwitchIf voltage was present as described, proceed to #5 Service Solenoid Valve Late ModelsService Solenoid Valve Early Models Check for continuity across the tank heater termi- nals Service Tank HeaterLocation Tank heater is located in the tank lid Thermistor Position Service Steam Sensor ThermistorTest Procedures Service Dispense Valve PC OnlyRemoval and Replacement Location Dispense Valve is located behind control panel120V AC 2 Wire + GND 120/208V AC 3 Wire + GND Early H5E, H5X, H10X Install jumper thru ver120/240V AC 3 Wire + GND Single PhaseSchematic Wiring Diagram H5E-PC 230V AC 2 Wire + GNDH5-PC Schematic Wiring DiagramWire + GND Schematic Wiring Diagram H5E/H5X Relay Schematic Wiring Diagram H5XA, H5EA CESingle Phase Schematic Wiring Diagram H5 Element
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DV, H5E, H5X specifications

The Bunn H5E and H5X coffee machines represent a leap forward in brewing technology, specifically tailored for commercial use. Both models focus on delivering high-quality coffee while maximizing efficiency, making them ideal choices for busy cafés and restaurants.

The Bunn H5E features a unique 5-liter dual tank system, which allows for faster brewing times and reduces wait periods for customers. This dual tank setup facilitates the simultaneous preparation of multiple coffee types, catering to a diverse clientele. The H5X, on the other hand, is equipped with advanced electronic controls that permit precise temperature adjustments to ensure that the ideal brewing conditions are maintained, enhancing flavor extraction.

One of the standout features of both models is the patented BrewOptimized Technology. This technology helps maintain optimal water temperature and consistent flow rates throughout the brewing process, ensuring that each cup of coffee meets the high standards expected in commercial settings. Additionally, the units utilize a patented stainless steel brew basket that enhances durability and simplifies cleaning, making maintenance less of a chore for busy staff.

Another significant characteristic of the H5E and H5X is their programmable settings, which allow operators to customize brewing parameters according to their specific preferences or customer needs. This flexibility means that establishments can experiment with various coffee profiles, ensuring that they serve only the best products to their patrons.

Safety is also a priority in the design of these machines. The H5E and H5X come equipped with built-in safety features such as automatic shut-off and thermal overload protection, which help to prevent accidents and enhance longevity. Moreover, their compact design allows for easy installation in a variety of settings, whether it's a small coffee stand or a large restaurant operation.

Both the Bunn H5E and H5X models are energy-efficient, with features that minimize power consumption without compromising performance. This focus on sustainability not only helps reduce overhead costs but also appeals to environmentally conscious consumers.

In summary, the Bunn H5E and H5X coffee machines are engineered for high performance, reliability, and versatility. With features designed to provide quick, quality coffee while ensuring ease of operation and maintenance, these machines are ideal for any establishment that takes its coffee seriously. Whether you’re brewing for a crowd or crafting specialty drinks, the H5E and H5X stand ready to deliver excellent results every time.
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