SERVICE (cont.)
TEMPERATURE PROBE
FIG. 16 TEMPERATURE PROBE | P1960.60 |
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Location: |
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The temperature probe is located on the tank lid, to the rear and left of the sprayhead tube.
Test Procedures:
1.Disconnect the brewer from the power source.
2.Remove the temperature probe from the grom- met.
3.Submerge the probe in a water bath of approxi- mately 70°F (21°C).
4.Connect an ohmmeter to pins 2 and 3 of the
a)15.3k ± 2k OHMS at 60°F (15°C)
b)11.8k ± 2k OHMS at 70°F (21°C)
c)9.3k ± 2k OHMS at 80°F (27°C)
If resistance is present as described, the temperature probe is operating properly.
If resistance is not present as described, replace the temperature probe.
Removal and Replacement:
1.Disconnect the brewer from the power source.
2.Pull the existing probe from the tank lid.
3.Cut the white and black wires close to the probe and discard the probe. Do not disconnect these wires from the electronic control assembly.
4.On the new probe, cut the white and black wires near the terminals. Discard the terminals. Insert the new probe into the tank assembly.
5.Insert the white wire from the new probe and the white wire from the electronic control assembly into one of the UR connectors provided with the replacement kit, and carefully crimp the connec- tor.
6.Insert the black wire from the new probe and the black wire from the electronic control assembly into the remaining UR connector provided with the replacement kit, and carefully crimp the con- nector.
7.Refer to Fig. 17 when reconnecting the wires.
To Control Board |
Pins 2 & 3 |
P2225
FIG. 17 TEMPERATURE PROBE TERMINALS
Page 23 | 29466 | 082200 |
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