SERVICE (cont.)

ON/OFF SWITCH (T3 W/OUT HALF BATCH) or SE- LECTOR SWITCH (T3 W/HALF BATCH and T6 BREW- ERS)

P1832.40

FIG. 15 ON/OFF OR SELECTOR SWITCH

Location:

The ON/OFF or SELECTOR switch is located in the left front of the hood.

Test Procedure:

T3 Brewers W/Out Half Batch Option

1.Disconnect the brewer from the power source.

2.Remove the black and white/violet wires from the switch terminals.

3.With a voltmeter, check the voltage across the black wire removed from the ON/OFF switch and the white wire remaining on the switch terminal.

4.Connect the brewer to the power source.The indi- cation must be 120 volts ac for two wire 120 volt models.

5.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wir- ing Diagrams and check the wiring harness.

6.Check for continuity across the center and end terminals of the top row when the switch is in the “ON” (left) position.

If continuity is present as described, replace the wires, the switch is operating properly.

If continuity is not present as described, replace the switch.

T3 Brewers W/Half Batch Option

1.Disconnect the brewer from the power source.

2.Remove the black wire from the top center switch terminal.

3.With a voltmeter, check the voltage across the black wire removed from the selector switch and the white wire or red wire on the tank heater.

4.Connect the brewer to the power source.The indi- cation must be:

a)120 volts ac for two wire 120 volt models.

a)240 volts ac for two wire 240 volt models.

b)100 volts ac for two wire 100 volt models.

5.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #6.

If voltage is not present as described, refer to the Wir- ing Diagrams and check the wiring harness.

6.Check for continuity across the center and left or right terminals of the top row when the switch is "FULL" or "HALF" (left or right) position.

If continuity is present as described, replace the wires, the switch is operating properly.

If continuity is not present as described, replace the switch.

7.On T3 brewers disconnect the pink and gray wires from the left and center terminals.

8.Check for continuity across the left and center ter- minals in rows two, three and four with the switch in the half batch position.

If continuity is present as described, replace the wires the switch is operating properly.

If continuity is not present as described, replace the switch.

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Bunn T3A, T6A service manual ON/OFF or Selector Switch
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T6, T6A, T3A specifications

The Bunn T6A, T3A, T6, and T3 are part of a distinguished line of commercial coffee brewers engineered for consistency, efficiency, and top-notch brew quality. These machines are well-suited for cafes, restaurants, and specialty coffee shops where reliability and performance are paramount.

The Bunn T6A is designed to brew large quantities, accommodating high-demand environments. With a capacity of six gallons per hour, this machine can quickly fulfill orders, ensuring that customers receive fresh, hot coffee without delay. It features a programmable touchpad that allows users to customize brew settings, enabling them to fine-tune extraction times and temperatures for various coffee blends. The T6A’s dual-float system provides precise water control, preventing overflow and enhancing safety.

The Bunn T3A is another exceptional model in this lineup, designed for both versatility and speed. It boasts a three-gallon capacity, making it ideal for medium-sized establishments. The T3A is equipped with Bunn's patented SplashGard funnel, which helps protect users from hot water splashes, providing an additional layer of safety. Its advanced brewing technology allows for an optimal brew temperature range, ensuring that coffee is extracted to perfection every time.

The Bunn T6 is similar to the T6A in its heavy-duty construction but focuses on a slightly different brewing capacity. Capable of producing back-to-back brews, the T6 can keep up with high-volume demands. This model features a digital brewer interface, making it user-friendly while providing detailed feedback on the brewing process. Its robust design allows for easy maintenance, ensuring it remains in peak operating condition.

Lastly, the Bunn T3 serves as a compact alternative in the series, suited for locations with limited space but requiring high-quality coffee. The T3 can brew up to three gallons per hour, seamlessly fitting into smaller setups without compromising on performance. Like its counterparts, it features programmable settings and quick brew times, providing flexibility and efficiency.

Together, the Bunn T6A, T3A, T6, and T3 represent a versatile range of commercial coffee brewing solutions. Each model is designed to deliver exceptional coffee, maintain consistent quality, and provide ease of use, making them integral tools for any serious coffee business. Whether high volume or limited space, Bunn caters to diverse needs while upholding the highest standards in coffee brewing technology.
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