Bunn CRTF5, CRT5 service manual Dry coffee grounds remain, Funnel Brewer is making unusal noises

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TROUBLESHOOTING (cont.)

 

 

PROBLEM

PROBABLE CAUSE

Weak beverage

1. Filter Type

 

2.

Coffee Grind

 

3.

Sprayhead

 

4.

Funnel Loading

 

5.

Water Temperature

Dry coffee grounds remain in

1. Funnel Loading

the funnel

 

Brewer is making unusal noises

1. Solenoid

2. Plumbing Lines

3. Water Supply

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REMEDY

BUNN® paper filters must be used for proper extraction.

A fine or drip grind must be used for proper extraction.

A six-hole stainless steel spray- head must be used for proper extraction.

The BUNN® paper filter must be centered in the funnel and the bed of ground leveled by gentle shak- ing.

Place an empty funnel on an empty dispenser beneath the sprayhead. Initiate a brew cycle and check the water temperature immediately be- low the sprayhead with a ther- mometer. The reading should not be less than 195°F (76°C). Adjust the control thermostat to increase the water temperature. Replace if necessary.

The BUNN® paper filter must be centered in the funnel and the bed of grounds leveled by gently shak- ing.

The nut on the solenoid must be tight or it will vibrate during opera- tion.

Plumbing lines should not resting on the counter top.

(A)The brewer must be connected to a cold water line.

(B)Water pressure to the brewer must not exceed 90 psi (620 kPa). Install a regulator if necessary to lower the working pressure to ap- proximately 50 psi (345 kPa).

10478 022800

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Contents Bunn CRT5 Warranty IntroductionUser Notices Electrical Requirements Plumbing RequirementsElectrical Hook-Up Plumbing Requirements Models CRT5, CRT5A & CRT5BModels CRTF5 & CRTF5B Models CRTF5, CRTF5A & CRTF5BAdjusting Brew Volumes Initial SET-UPCleaning ON/OFF SwitchStart Switch Operating ControlsTroubleshooting Problem Probable CauseBrew cycle will not start No water To the brewerTroubleshooting ProblemBrew cycle will not start Water is not hot Control Thermostat Tank HeaterInconsistent beverage level DispenserSyphon System Spitting or excessive steaming Dripping from sprayhead Dry coffee grounds remain Funnel Brewer is making unusal noisesPlumbing Lines Water Supply Tank Heater Warmer SeeService Component AccessContents Control ThermostatService Control Thermostat First Type Thermostat Second Type ThermostatService Limit ThermostatON/OFF Warmer Switch Lower Center WarmerTest Procedures Disconnect the brewer from the power source Solenoid ValveStart Switch Tank Heater Thermostat w/bracket early models onlyService Tank Heater Tank Heater TerminalsTank Heater Switch Tank Heater SwitchService Tank Heater Switch Tank Heater Switch TerminalsService Thermal CUT-OFF Brewers W/Faucet Thermal CUT-OFFService Timer Early Models Test Procedure Disconnect the brewer from the power sourceDisconnect the black and white wires from the solenoid Service Timer Timer TerminalsService Digital Brew Timer Late Models If voltage is as described, proceed to #8Service Digital Brew Timer Late Modelscont To increase a brew volume, place the ON/OFFSetting brew volumes. To set a brew volume Warmer Elements Warmer Elements10478 10478 10478

CRT5, CRTF5 specifications

The Bunn CRTF5 and CRT5 coffee brewers are appreciated by coffee enthusiasts and professionals alike for their reliability, efficiency, and innovative features. These commercial brewing systems are designed to deliver high-quality coffee consistently, making them ideal for cafes, restaurants, and other food service operations.

One of the standout features of the Bunn CRTF5 is its ability to brew multiple batches of coffee simultaneously. With a capacity of brewing up to 3.8 gallons per hour, it is equipped to handle high demand without compromising on quality. The unit has a programmable digital control which allows users to easily adjust brew temperature and time, ensuring each batch is brewed to perfection. This level of control empowers operators to customize their brewing process according to the unique preferences of their customers.

In terms of design, the Bunn CRTF5 and CRT5 models incorporate a stainless-steel exterior that not only enhances durability but also adds a sleek look to any kitchen or coffee shop environment. The large, easy-to-read water level indicator allows for straightforward monitoring of the brewing process, minimizing the risk of running out of water during peak busy hours. The easy-to-use front-access design also simplifies the loading and unloading of coffee grounds and water.

Technologically, the Bunn CRTF5 and CRT5 incorporate advanced brewing technology that helps maintain optimal brew temperatures through the use of stainless-steel water tanks. These tanks ensure that water is heated quickly and is maintained at consistent temperatures throughout the brewing process, positively affecting flavor extraction and ensuring the rich taste of coffee.

Another crucial characteristic of these brewers is the brew basket, which is designed for efficient flow control. This feature assists in achieving an even extraction process, thereby enhancing the overall quality of the coffee produced. Furthermore, the sturdy construction of the basket ensures that it can withstand the demands of daily use in a high-traffic environment.

In conclusion, the Bunn CRTF5 and CRT5 coffee brewers stand out in the commercial coffee brewing market. Their combination of robust features, advanced technologies, and user-friendly design makes them a smart choice for those looking to serve high-quality coffee quickly and efficiently. Whether in a bustling café or a restaurant, these brewers are built to deliver exceptional coffee experiences every time.
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