Bunn
41722.0000A
manual
Triacs MV-2 Brew solenoid output MV-1 Line, Digital Timer Triacs
Schematic Wiring Diagram TB3Q
BREW/DILUTION Timer TB3 & TB6
Problem
Component Access
Terminals ½ batch connector
Lighted ON/OFF Switch TB3/TB3Q
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SERVICE (cont.)
DIGITAL BREW TIMER (TB3Q & TB6Q) (cont.)
FIG.
21-1
DIGITAL TIMER TRIACS
Triacs:
Q-1/MV-2
Brew solenoid output
MV-1
Line in
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41722 070209
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Contents
Phone 217 529-6601 FAX 217
TB3/TB6 Series
BUNN-O-MATIC Commercial Product Warranty
Contents
Probable Cause Remedy
Brew cycle will not start No water
To the brewer
Brew cycle will not start Water is not hot
Problem
Probable Cause
Control Thermostat Tank Heater
Surfaces can initiate corrosive
Inconsistent beverage level
Reactions resulting in serious
Leaks
Refer to Service Timer for test- ing procedures
Spitting or excessive steaming Dripping from sprayhead
Beverage overflows dispenser
Dry coffee grounds remain
Funnel Brewer is making unusal noises
Plumbing Lines Water Supply
Problem Probable Cause Remedy
Brewer is making unusal noises Tank Heater
Cont Tank heater
Component Access
Control Thermostat
Location Control thermostat is located in the hood
Adjust the control thermostat as required
Disconnect the control thermostat wires
Limit Thermostat
Remove all wires from limit thermostat termi- nals
Disconnect the brewer from the power supply
Tank Heater
1680W-120V 1680W-100V 1680W-230V 29.0 33.7
Lighted ON/OFF Switch TB3/TB3Q
Refer to -2 when reconnecting the wires
Orange light
Through four when the switch is in the oposite Position
Switch is located on the front control panel
Switch
If continuity is present as described, replace the wires
37080.0001to T. Stat
Start Switches
Inlet Valves
BREW/DILUTION Timer TB3 & TB6
Triacs TH-1/MV-1 Brew solenoid TH-2/MV-2 Dilution solenoid
BREW/DILUTION Timer Triacs
Digital Brew Timer TB3Q & TB6Q
Terminals ½ batch connector
White Red Neutral L2
Triacs MV-2 Brew solenoid output MV-1 Line
Digital Timer Triacs
Volts AC Wire Single Phase
Schematic Wiring Diagram TB3Q
Schematic 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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