Bunn H5E H5X service manual Service, Component Access

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SERVICE

This section provides procedures for testing and replacing various major components used in this dis- penser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

Component Access

WARNING – Disconnect the dispenser from the power source before the removal of any panel or the replace- ment of any component.

WARNING

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The check valve, electronic control assembly, safety overflow switch, solenoid valve, overflow tube tem- perature sensor and terminal block are located at the rear of the dispenser. Access is gained by removing the upper and lower rear panels. The upper is attached with six 8-32 slotted-head screws. The lower is attached with four 8-32 slotted-head screws. The middle panel must not be removed from the dispenser.

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The limit thermostat, liquid level probe, tank heater, and temperature sensor are located at the top of the dispenser. Access is gained by removing the top lid, attached with three 4-40 slotted-head screws.

The triac assembly is located beneath the tank. Access is gained by removing four feet and the bottom panel attached with seven 8-32 slotted-head screws.

NOTE - Completely drain the tank before tipping the dispenser.

WARNING – Inspection, testing, and repair of electrical equipment should be performed only by qualified ser- vice personnel. Disconnect the dispenser from the power source when servicing, except when electrical tests are required and the test procedure specifically states to connect the dispenser to the power source.

Electronic Controls

10

Limit Thermostat

16

Safety Overflow Switch

17

Solenoid Valve

18

Tank Heater

19

WARNING

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P1770

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?

9

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Contents Bunn Contents WarrantyIntroduction User Notices Electrical Requirements Plumbing RequirementsElectrical Hook-Up Wall Mounted Installation CleaningInitial SET-UP Draining the DispenserProblem Probable Cause Remedy TroubleshootingTroubleshooting Problem Probable Cause Lime build-up Water boils continuously Temperature controlDeposits. Delime as required Dispenser is making unusual noisesComponent Access ServiceLiquid Level Control Flow Charts LocationGeneral This system controls the liquid level and water tem Liquid Level Control Test Procedure Service Electronic ControlsProblem Boils Excessively Fills Cup Service Electronic Controls Wiring Connections 5A. to Increase the Temperature AdjustmentsService Limit Thermostat Test ProcedureLocation Limit thermostat is located on the tank lid Switch Service Safety Overflow SwitchSolenoid Valve Service Solenoid ValveService Tank Heater Location Tank heater is located in the tank lidCheck for continuity across the tank heater termi- nals Volts a C Wiring DiagramsVolts a C Wiring Diagrams Schematic Wiring Diagram H5E

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.
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