SERVICE (cont.)

CIRCUIT BREAKER (120/208V and 120/240V Three

Wire Models and 440V Four Wire Models)

P2209.60

FIG. 2 CIRCUIT BREAKER

Location:

The circuit breaker is located on the right rear of the component bracket.

Test Procedures:

1.Disconnect the brewer from the power source.

2.Disconnect the black wire from the main harness from the circuit breaker and the white wire on the pump assembly. With a voltmeter, check the voltage across the black wire and the white wire. Connect the brewer to the power source. The indication must be:

a)120 volts ac for three wire 120/208 volt and 120/240 volt models.

b)208 or 240 volts ac for four wire 440 volt mod- els.

3.Disconnect the brewer from the power source.

If voltage is present as described, reconnect the white wire to the pump assembly and proceed to #4. If volt- age is not present as described, refer to the Wiring Diagrams and check the brewer wiring harness.

4.With the black wire removed, remove the other black wire from the circuit breaker.

5.Check for continuity across the terminals on the circuit breaker.

If continuity is present as described the circuit breaker is operating properly.

If continuity is not present as described, press the reset button and repeat step 5, if continuity is not present as described, replace the circuit breaker.

Removal and Replacement:

1.Remove wires from the circuit breaker.

2.Remove the nut securing the circuit breaker to the component bracket.

3.Remove circuit breaker and discard.

4.Install new circuit breaker on component bracket and secure with nut.

5.Refer to Fig. 3 and reconnect the wires.

BLK from Main

Harness

BLK from ON/

OFF Switch

FIG. 3 CIRCUIT BREAKER TERMINALS P1723

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10060

080900

 

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Bunn U3A service manual Service, Wire Models and 440V Four Wire Models, Location
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U3A, U3 specifications

Bunn U3A, also known as Bunn's U3A, is a unique and innovative approach to education that caters specifically to retirees and senior citizens. The primary aim of this initiative is to foster lifelong learning and social engagement among older adults, empowering them to explore various subjects of interest and connect with like-minded individuals.

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In summary, Bunn U3A stands out as a vibrant learning community that prioritizes the educational and social needs of retirees. With its diverse courses, strong community bonds, and integration of technology, it serves as a model for how organizations can successfully promote lifelong learning and engagement among older individuals, enriching their lives in meaningful ways.
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