Bunn System III manual Troubleshooting Problem Probable Cause Remedy

Page 9

TROUBLESHOOTING (cont.)

 

 

 

Problem

Probable Cause

Remedy

Automatic refill will not operate

6.

Solenoid Valve

Refer to Service - Solenoid valve for

(cont.)

 

 

testing procedures. See page 30

Beverage level will not adjust (Selec-

1.

Selector switch

Refer to Service - Selector switch for

tor switch in any position)

 

 

testing procedures. See page 16

Water flows into tank continuously

1. (A) Level control board and level

Refer to Service - Level control board

(ON/OFF Switch "OFF")

probe (Electro/mechanical)

for testing procedures. See page 25

 

 

(B) Digital Brewer Control

Refer to Service - Digital brewer

 

 

 

control for testing procedures. See

 

 

 

page 23 step 10

 

2.

Overflow protection switch

Refer to Service - Overflow protec-

 

 

 

tion switch for testing procedures.

 

 

 

See page 29

 

3.

Solenoid valve

Refer to Service - Solenoid valve for

 

 

 

testing procedures. See page 30

Water from tank is not hot

1.

Limit thermostat

Refer to Service -Limit thermostat

 

CAUTION - Do not eliminate or by-

for testing procedures. See page 27

 

pass limit thermostat. Use only

 

 

B.O.M. part #23717.0001

 

2.(A) Control Thermostat (Electro/ mechanical)

(B)Digital Brewer Control

Refer to Service - Control thermo- stat for testing procedures. See page 20

Refer to Service - Digital brewer control for testing procedure. See page 22 step 3

3.

Contactor (Electro/mechanical)

Refer to Service - Contactor for test

 

 

procedures. See page 18

4.

Tank heater

Refer to Service - Tank heater for

 

 

testing procedures. See page 33

Page 9

27362

092900

 

 

Page 8 Page 10
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Page 8 Page 10
Contents Bunn Warranty 20201.5600 00831.0000 00656.0000 03408.0000 03409.0000 User NoticesElectrical Requirements Models with digital brewer control assemblyModels with electro/mechanical thermostats Plumbing RequirementsAdjusting Brew Volumes Initial SET-UPElectro/mechanical brewers Brew Selector Switch CleaningStart Switch Operating ControlsProblem Probable Cause Remedy TroubleshootingOverflow protection switch Troubleshooting ProblemBrew cycle will not start Digital Brewer Control Assem- bly DBCTroubleshooting Problem Probable Cause Remedy Warmer element Triac assembly DBCSprayhead or airvent Mechanical StepDBC volume adjustment Time adjustment ElectroTimer adjustment Procedures. See page 34 orTroubleshooting Problem DBC display is blank Digital brewer control Cannot access the DBC Digital brewer controlService Component AccessContents Bypass Valve ServiceLocation ServiceELECTRO/MECHANICAL Brew Selector SwitchGently remove the capillary bulb and grommet from the tank Contactor Assembly ELECTRO/MECHANICAL onlyContactor Assembly Terminals Service Contactor Assembly ELECTRO/MECHANICAL onlyOnly Test Procedures Disconnect the brewer from the power sourceElectromechanical Dispense ValveTION, Entry and Description Digital Brewer Control Board and Display DBCService Digital Brewer Control Board and Display DBC TRIAC/HEAT Sink TRIAC/HEAT Sink Assembly DBC onlyP2231.30 Terminals Limit Thermostat Limit ThermostatBlack wire from the center terminal Service ON/OFF Warmer SwitchThree wire 120/240 volt models ModelsTest Procedure Disconnect the brewer from the power source Overflow Protection SwitchRefill Solenoid Valve Service Solenoid Valve RefillRefill Solenoid Terminals Start Switch Location Tank HeaterTimer ELECTRO/MECHANICAL Onlyearly Models If voltage is as described, proceed to #7 Digital Timer ELECTRO/MECHANICAL only Late ModelsDigital Timer Wiring Timer SettingWarmer 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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