TROUBLESHOOTING (cont.)

PROBLEM

Water not hot

Circuit breaker keeps tripping

Water keeps running from swing spout

Inconsistent coffee yield

Funnels overflow

PROBABLE CAUSE

1. Limit Thermostat

CAUTION - Do not eliminate or bypass limit thermostat. Use only Bunn-O-Matic replacement part #29329.1000

2.Control Thermostat

3.Tank Heater(s)

4.Contactor

1.Circuit Breaker

2.Tank Heater(s)

1.Timer

2.Start Switch

1.Timer

2.Solenoid Valve

3.Lime build-up in swing spout and pump tubing.

1.Filters

2.Hole in bottom of funnel ob- structed.

REMEDY

Refer to Service - Limit Thermo- stat for testing procedures. See page19

Refer to Service - Control Ther- mostat for testing procedures. See page 17

Refer to Service - Tank Heater for testing procedures. See page 30

Refer to Service - Contactor for testing procedures. See page 15

Refer to Service - Circuit Breaker for testing procedures. See page 14

Refer to Service - Tank Heater for testing procedures. See page 30

Refer to Service - Timer for testing procedures. See page 31 or 33

Refer to Service - Start Switch for testing procedures. See page 29

Refer to Service - Timer for testing procedures. See page 31 or 33

Refer to Service - Solenoid Valve for testing procedures. See page 27

Remove swing spout and insert deliming rod down into pump tubing as far as possible.

Use Bunn® filters made for the U3 brewer.

Remove obstruction.

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Bunn U3A service manual Refer to Service Circuit Breaker for testing procedures. See

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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