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19
Location:
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 J13 (J3 on ITB) on control board (black
probe to black wire, red probe to white wire refer
to FIG 19-2). Connect the brewer to the power
source. The indication should be 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.
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 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.
Removal and Replacement:
CONTINUED
FIG. 19-1 TEMPERATURE PROBE
TEMPERATURE PROBE
FIG. 19-3 TESTING TEMPERATURE PROBE
42461 0911809
FIG. 19-2 TEMPERATURE PROBE