Bunn cdbcf 15 사용자 가이드

Page 23

 

The  temperature probe is inserted through the 

tank lid assembly.

Test Procedures:
1.  Disconnect the brewer from the power source.
2.  With a DC voltmeter, check voltage across the 

two wires at J9 on control board (Black probe to 
black wire, red probe to white wire. Refer to FIG 
18-2). Connect the brewer to the power source. 
The indication should be approximately between 
4vdc cool to 1vdc at ready temperature.

3.  Disconnect the brewer from the power source.

If voltage is present as described, circuit is working 
correctly, check limit thermostat (and TCO on 230V 
models).
If voltage is not present as described, proceed to 
#4.

4.  Disconnect temperature probe from J9 on control 

board. Check the resistance across the two ter-
minals of the temperature probe. The indication 
should be approximately between 10.5K  cool to 
870  at ready temperature.

If resistance is to specifi cation, replace the control 
board.
If resistance is not to specifi cation, replace the tem-
perature probe.

1.  Disconnect the brewer from the power source.
2.  Disconnect the two pin connector from J9 on 

control board.

3.  Pull temperature probe out of it's grommet.
4.  Install in reverse order.

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