Bunn CWT-TS Service TIMEREarly Models, Disconnect the black and white wires to the sole- noid

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SERVICE (cont.)

TIMER(Early Models)

P1127.40

FIG. 16 TIMER

Location:

The timer is located inside the front of the trunk on the top of component bracket.

Test Procedure.

1.Disconnect the brewer from the power source.

2.Disconnect the polarized, three pin connector from the brewer wiring harness and rotate the brew timer dial fully counterclockwise.

3.With a voltmeter, check the voltage across sockets P2 & P3 (white and black wires) of the female connector when the "ON/OFF" is in the "ON" (upper) position. Connect the brewer to the power source. The indication must be:

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

b)200 to 240 volts ac on two wire 200 volt or 240 volt models.

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

4.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #5.

If voltage is not present as described, refer to the Wiring Diagrams and check the brewer wiring har- ness.

5.With a voltmeter, check the voltage across the sockets P1 & P2 (blue and white wires) of the female connector when the "ON/OFF" switch is in the "ON" (upper) position and the "START" switch is pressed. Connect the brewer to the power source. The indication must be:

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

b)200 to 240 volts ac for two wire 200 volt or 240 volt models.

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

6.Disconnect the brewer from the power source.

7.Reconnect the three pin connector from main wiring harness to the timer.

If voltage is present as described, proceed to #7

If voltage is not present as described, refer to Wiring Diagrams and check the brewer wiring harness.

7.Disconnect the black and white wires to the sole- noid.

9.With a voltmeter, check the voltage across the black and white wires when the "ON/OFF" switch is in the "ON" (upper) position and the "START" switch is pressed to the "START" (lower) position and released. Connect the brewer to the power source. The indication must be:

a)120 volts ac for approximately 20 seconds for two wire 120 volt models and three wire 120/240 volt models.

b)200 to 240 volts ac for approximately 20 sec- onds for two wire 200 volt or 240 volt models.

c)100 volts ac for approximately 20 seconds for two wire 100 volt models.

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Contents CWT-TSR Introduction WarrantyUser Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Models CW-APS & CWT-TSEarly MO Dels W/OUT Fauc ET Plumbing RequirementsThird Type Models W/FAUCET Models CWTF-APS, CWTF-TS CWTF-TSR4A.Models CW-APS & CW-TS Initial SET-UP6A.Models CW-APS & CW-TS 8A.Models CWA-PS & CW-TSON/OFF Switch Adjusting Brew VolumesStart Switch Operating ControlsCoffee Brewing Cleaning5A.Models CW-APS & CW-TS Problem Probable Cause Remedy TroubleshootingBrew cycle will not start CWT No water Must be openProblem Probable Cause Remedy TroubleshootingCWTF-TS, CWT-TSR &CWTF TSRCWTF-TSR ProblemBeverage overflows dispenser Spitting or excessive steaming Dripping from sprayheadControl Thermostat Syphon System Lime Build-up DispenserCWTF-TS, CWT-TSR, CWTF-TSR CWT-APS, CWTF-APS, CWT-TSCWT-TS, CWTF-TS, CWT-TSR CWTF-TSR Remove and clean lime off the tank heater. SeeBrewer is making unusal noises Tank Heater Component Access ServiceContents Control Thermostat ServiceLimit Thermostat Service Control ThermostatON/OFF Switch Solenoid Valve Test Procedures Disconnect the brewer from the power sourceLocation Start Switch Terminals Start SwitchTank Heater Tank HeaterService Tank Heater Tank Heater Switch Tank Heater SwitchTank Heater Switch Terminals Service Tank Heater SwitchDisconnect the black and white wires to the sole- noid Service TIMEREarly ModelsOLD Style Service TimerIf voltage is as described, proceed to #7 Digital Brew Timer Late ModelsTimer Setting Service Digital Brew Timer Late Modelscont10690 10690 10690 10690 10690