Bunn TB6Q manual Problem, Brew cycle will not start Water is not hot, Probable Cause

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TROUBLESHOOTING (cont.)

PROBLEM

Brew cycle will not start (cont.)

Water is not hot

PROBABLE CAUSE

3.ON/OFF Switch

4.Start Switch

5.Timer

6.Solenoid Valve

7.Water strainer/flow control (If equipped)

1.(A) Limit Thermostat

(B)Thermal Cut-Off (230V) CAUTION - Do not eliminate or bypass limit thermostat or thermal cut-off. Use only BOM replacement parts.

2.Control Thermostat

3.Tank Heater

REMEDY

Refer to Service - ON/OFF Switch for testing.

Refer to Service - Start Switch for testing procedures.

Refer to Service - Timer for test- ing procedures.

Refer to Service - Solenoid Valve for testing procedures.

(A)Direction of flow arrow must be pointing towards brewer.

(B)Remove the strainer/flow control and check for obstruc- tions. Clear or replace.

Refer to Service - Limit Ther- mostat for testing procedures. Thermal Cut-Off for testing procedures.

Refer to Service - Control Ther- mostat for testing procedures.

Refer to Service - Tank Heater for testing procedures.

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Contents Phone 217 529-6601 FAX 217 TB3/TB6 SeriesBUNN-O-MATIC Commercial Product Warranty Contents To the brewer Probable Cause RemedyBrew cycle will not start No water Brew cycle will not start Water is not hot ProblemProbable Cause Control Thermostat Tank HeaterSurfaces can initiate corrosive Inconsistent beverage levelReactions resulting in serious LeaksBeverage overflows dispenser Refer to Service Timer for test- ing proceduresSpitting or excessive steaming Dripping from sprayhead Plumbing Lines Water Supply Dry coffee grounds remainFunnel Brewer is making unusal noises Cont Tank heater Problem Probable Cause RemedyBrewer is making unusal noises Tank Heater Location Control thermostat is located in the hood Component AccessControl Thermostat Adjust the control thermostat as required Disconnect the control thermostat wiresLimit Thermostat Remove all wires from limit thermostat termi- nals1680W-120V 1680W-100V 1680W-230V 29.0 33.7 Disconnect the brewer from the power supplyTank Heater Orange light Lighted ON/OFF Switch TB3/TB3QRefer to -2 when reconnecting the wires Through four when the switch is in the oposite Position Switch is located on the front control panelSwitch If continuity is present as described, replace the wires37080.0001to T. Stat Start SwitchesInlet Valves BREW/DILUTION Timer TB3 & TB6 Triacs TH-1/MV-1 Brew solenoid TH-2/MV-2 Dilution solenoid BREW/DILUTION Timer TriacsWhite Red Neutral L2 Digital Brew Timer TB3Q & TB6QTerminals ½ batch connector Triacs MV-2 Brew solenoid output MV-1 Line Digital Timer TriacsVolts AC Wire Single Phase Schematic Wiring Diagram TB3QSchematic Wiring Diagram TB3, TB3B, TB3-LP Schematic Wiring Diagram TB3Q Schematic Wiring Diagram TB3Q W/SWEETENER & Empty BAG Detect Schematic Wiring Diagram TB6 Schematic Wiring Diagram TB6Q

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TB6Q, TB6 specifications

The Bunn TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers are a popular series of commercial machines designed for high efficiency and optimal performance in busy environments such as cafes, restaurants, and offices. These machines are crafted with a focus on quality, dependability, and advanced brewing technology to deliver a superior coffee experience.

One of the standout features across the Bunn TB series is the ability to brew large quantities of coffee quickly. The TB6Q, for instance, can brew up to 6 gallons of coffee per hour. This high volume brewing capability ensures that establishments can keep up with demand, especially during peak hours. Additionally, the machines come with a unique design that incorporates a pre-infusion feature, allowing for the coffee grounds to be evenly saturated before brewing begins, enhancing the flavor extraction process.

The TB3-LP model is designed for low-profile applications where counter space may be limited. Despite its compact design, it still offers impressive performance, brewing up to 3.8 gallons per hour. The low-profile feature makes it an ideal choice for settings that require efficiency and space optimization without compromising on the quality of the brew.

Another notable member of the series, the TB3Q and TB3Q-LP, feature a quick brew ratio, allowing users to brew up to 3 gallons of coffee in just a few minutes. These models are equipped with easy-to-use controls for simplified operation, making them perfect for staff training and user accessibility.

All models in the TB series include a hot water faucet, allowing users to dispense hot water for tea or other hot beverages quickly. This versatility adds significant value, especially in multi-beverage settings.

Regarding durability, the Bunn TB series is constructed with high-quality materials, ensuring longevity and reliability. The machines also feature internal components that are easy to access for maintenance, thus reducing downtime and improving the overall efficiency of the machine.

In terms of technology, these brewers often incorporate advanced diagnostics to promptly identify service needs or issues. The machines come with a precise brewing temperature control system that ensures each cup is brewed at the optimal temperature for maximum flavor extraction.

Overall, Bunn's TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers represent the culmination of advanced brewing technology and practical design for commercial coffee solutions. Their efficiency, quality, and ease of use make them a staple in many establishments, solidifying Bunn's reputation as a leader in the coffee brewing industry.