Bunn System III manual Warmer element, Sprayhead or airvent Mechanical, Step, Triac assembly DBC

Page 10

TROUBLESHOOTING (cont.)

 

Problem

Probable Cause

Water from tank is not hot (cont.)

5. Triac assembly (DBC)

Remedy

Refer to Service - Digital brewer con- trol for testing procedures. See page 22

Server warmer is not hot.

1.

ON/OFF switch

Refer to Service - ON/OFF switch for

 

 

 

testing procedures. See page 28

 

2.

Warmer element

Refer to Service - Warmer element

 

 

 

for testing procedures. See page 37

Spitting or unusual steaming from

1.

(A) Control thermostat (Electro/

Refer to Service - Control thermo-

sprayhead or airvent.

mechanical)

stat for testing procedures. See page

 

 

 

20

 

 

(B) Digital Brewer Control

Refer to Service - Digital brewer con-

 

 

 

trol for testing procedures. See page

 

 

 

23 step 10

 

2.

Triac assembly (DBC)

Refer to Service - Digital Brew Con-

 

 

 

trol for testing procedures. See page

 

 

 

22

3. Lime build-up

CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate cor- rosive reactions resulting in serious leaks.

Inspect the tank assembly for exces- sive lime deposits. Delime as re- quired.

Inconsistent beverage level in server. 1. Strainer/flow control (.500 GPM)

(A) Direction of flow arrow must be

 

pointing towards the brewer.

2. Improper water pressure

(B) Remove the strainer/flow con-

 

trol and check for obstructions. Clear

 

or replace.

 

Check the operating water pressure

 

to the brewer. It must be between 20

 

(138) and 90 psi (620 kPa).

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27362

092900

 

 

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Contents Bunn Warranty User Notices 20201.5600 00831.0000 00656.0000 03408.0000 03409.0000Models with electro/mechanical thermostats Models with digital brewer control assemblyElectrical Requirements Plumbing RequirementsInitial SET-UP Adjusting Brew VolumesElectro/mechanical brewers Start Switch CleaningBrew Selector Switch Operating ControlsTroubleshooting Problem Probable Cause RemedyBrew cycle will not start Troubleshooting ProblemOverflow protection switch Digital Brewer Control Assem- bly DBCTroubleshooting Problem Probable Cause Remedy Sprayhead or airvent Mechanical Triac assembly DBCWarmer element StepTimer adjustment Time adjustment ElectroDBC volume adjustment Procedures. See page 34 orTroubleshooting Problem Cannot access the DBC Digital brewer control DBC display is blank Digital brewer controlComponent Access ServiceContents Service Bypass ValveService LocationBrew Selector Switch ELECTRO/MECHANICALContactor Assembly ELECTRO/MECHANICAL only Gently remove the capillary bulb and grommet from the tankService Contactor Assembly ELECTRO/MECHANICAL only Contactor Assembly TerminalsTest Procedures Disconnect the brewer from the power source OnlyDispense Valve ElectromechanicalDigital Brewer Control Board and Display DBC TION, Entry and DescriptionService Digital Brewer Control Board and Display DBC TRIAC/HEAT Sink Assembly DBC only TRIAC/HEAT SinkP2231.30 Terminals Limit Thermostat Limit ThermostatThree wire 120/240 volt models Service ON/OFF Warmer SwitchBlack wire from the center terminal ModelsOverflow Protection Switch Test Procedure Disconnect the brewer from the power sourceService Solenoid Valve Refill Refill Solenoid ValveRefill Solenoid Terminals Start Switch Tank Heater LocationTimer ELECTRO/MECHANICAL Onlyearly Models Digital Timer ELECTRO/MECHANICAL only Late Models If voltage is as described, proceed to #7Timer Setting Digital Timer WiringWarmer Element Lower 27362 092900 Lower

System III specifications

The Bunn System III is a versatile and efficient commercial brewing system designed for high-demand environments such as cafés, restaurants, and catering operations. Renowned for its reliability and performance, the System III combines advanced brewing technology with user-friendly features to deliver exceptional coffee consistently.

One of the key features of the Bunn System III is its innovative brewing technology, which employs a unique infuser system. This design allows for optimal extraction of coffee flavors by ensuring that hot water is evenly distributed over the coffee grounds, maximizing flavor and ensuring a rich, balanced cup every time. The brewing system can brew up to 3.8 gallons of coffee per hour, making it an ideal choice for busy establishments.

The System III is equipped with an impressive built-in water heater that maintains a temperature of approximately 200°F, which is crucial for brewing coffee at the ideal temperature. This consistent temperature control minimizes the risk of under-extraction or over-extraction, resulting in better-tasting coffee. Additionally, the hot water faucet feature allows users to brew tea or instant beverages on demand, further enhancing the system's versatility.

Another characteristic that sets the Bunn System III apart is its user-friendly interface. The system is designed with intuitive controls, allowing baristas and kitchen staff to operate it with minimal training. The easy-to-read digital display provides critical information such as brew time and water temperature, ensuring that users can monitor the brewing process closely.

Durability is a hallmark of the Bunn System III. Constructed from high-quality materials, this brewing system is designed to withstand the rigors of commercial use. Its robust design ensures longevity and minimizes the need for frequent maintenance, making it a cost-effective choice for businesses.

The Bunn System III also features a large-capacity brew basket, capable of holding ample coffee grounds for high-volume brewing. This basket, combined with the system's efficient design, allows for quick and easy brewing, making it perfect for high traffic situations.

In conclusion, the Bunn System III coffee brewing system is a top choice for commercial coffee operations. Its advanced brewing technology, consistent temperature control, user-friendly features, and durable construction combine to create an exceptional brewing experience. Whether in a café, restaurant, or catering service, the Bunn System III stands out as an indispensable tool for delivering high-quality coffee efficiently.
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