Bunn System III manual SERVICE cont LIMIT THERMOSTAT

Models: System III

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SERVICE (cont.)

SERVICE (cont.)

LIMIT THERMOSTAT

 

 

 

 

1

 

 

 

L2

LT

 

L4

L3

T

 

5

T

 

 

TL

T

 

 

 

Removal and Replacement

1.Remove all wires from the limit thermostat termi- nals.

2.Carefully remove the two #8-32 nuts securing the limit thermostat to tank lid and remove limit ther- mostat.

3.Carefully secure new limit thermostat to tank lid.

4.Refer to Fig. 18 when reconnecting the wires.

BLK to Terminal Block

 

 

 

BLK to Tank Heater

(Black Insert)

 

 

 

 

 

 

 

 

 

 

 

 

 

FIG. 17 LIMIT THERMOSTAT

P2231.35

 

 

 

 

Location:

The limit thermostat is located inside the hood on the tank lid to the left of the tank heater.

Test Procedure:

1.Disconnect the brewer from the power supply.

2.Disconnect both black wires from the limit ther- mostat.

3.With an ohmmeter, check for continuity across the limit thermostat terminals.

If continuity is present as described, reconnect the black wires to the limit thermostat , the limit thermo- stat is operating properly.

If continuity is not present as described, press the reset button on the limit thermostat and repeat step #3.

After repeating step #3 and no continuity is shown, replace the limit thermostat.

FIG. 18 LIMIT THERMOSTAT TERMINALS

P833

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27362

092900

 

 

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Bunn System III manual SERVICE cont LIMIT THERMOSTAT