Bunn SRU Manual de Serviço descarregar pdf (Página 31)

Page 31

TIMER (Early Models)

FIG. 27 TIMER

P2114.40

Location:

The timer is located behind the front access panel

on the right side of the component bracket.

Test Procedures:

1. Disconnect the brewer from the power source.

2. Disconnect the polarized, three pin connector from

the brewer main harness and rotate the brew timer

dial fully counterclockwise.

3. With a voltmeter check the voltage across sockets

P2 and P3 (white and black wire or red wire) of the

female connector on the main wiring harness when

the "ON/OFF" switch is in the "ON" (upper) position.

See chart below for P2 and P3 wires:

SERVICE (cont.)

10067 080200

Connect the brewer to the power source. The indi-

cation must be:

a) 120 volts ac for 3-wire 120/208 volt and 120/240

volt models.

b) 208 volts ac for 2-wire 208 volt models.

c) 240 volts ac for 2-wire 240 volt models.

d) 230 volts ac for 2- wire 230 volt CE models.

MODEL P2 P3

SRU-CE BLK RED

SRUA RED BLK

SRU WHI BLK

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 harness.

5. With a voltmeter check the voltage across the sockets

P1 (BLU) and P2 (see chart in #3) of the female

connector on the main harness when the "ON/OFF"

switch is in the "ON" (upper) position and the start

switch pressed. Connect the brewer to the power

source. The indication must be:

a) 120 volts ac for 3-wire 120/208 volt and 120/240

volt models.

b) 208 volts ac for 2-wire 208 volt models.

c) 240 volts ac for 2-wire 240 volt models.

d) 230 volts ac for 2-wire 230 volt CE models.

6. Disconnect the brewer from the power source.

7. Reconnect the three pin connector from the main

wiring harness to the connector on the timer.

If voltage is present as described, proceed to #8.

If voltage is not present as described, refer to the wiring

diagrams and check the brewer wiring harness.

8. Disconnect the black and white wires to the

pump.

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 pressed to

the start position and released. Connect the brewer

to the power source. The indication must be:

a) 120 volts ac for 3-wire 120/208 volt and 120/240

volt models.

b) 208 volts ac for 2-wire 208 volt models.

c) 240 volts ac for 2-wire 240 volt models.

d) 230 volts ac for 2-wire 230 volt CE models.

If is present as described, the brew timer is operating

properly. Reset the timer dial as required, to obtain the

desired brew volume.

If voltage is not present as described, replace the

timer.

EARLY MODELS

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 37 38

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