Bunn EASY CLEAR H5E User Manual

Location:
The thermistor is located on the end of the overfl ow 
tube above the overfl ow cup.
To test the thermistor, access will also be needed to 
the electronic control board.

P1993

FIG. 17b LOCATION

P1993

FIG. 17a LOCATION

Test Procedure:
1.  Disconnect the dispenser from the power source.
2.  Disconnect the thermistor from J5 on control 

board.

3.  Check the resistance across thermistor with a 

ohmmeter. The resistance range is approximately 
9K  @ room temperature to approximately 2K  @ 
200°F.

4.  Disconnect the dispenser from the power source.

If resistance was present as described, the thermistor 
is working. 
If resistance was not present as described, replace the 
control board.

Removal and Replacement:
1.  Disconnect the dispenser from the power source.
2.  Disconnect the thermistor from J5 on control 

board.

3.  Loosen the set screw and the two screws securing 

the two half blocks together. Remove thermistor 
assembly from overfl ow tube.

4.  Install new thermistor on tube and slide down until 

it contacts the fl ared end. NOTE: It’s critical that 
the thermistor be centered directly under the tube 
opening.

5.  Snug the set screw so the block assembly does not 

move aroung easily.

6.  Connect the thermistor to J5 on control board.

Thermistor centered 

under tube opening

FIG. 17d THERMISTOR POSITION

42311 080510

Set screw

Mounting screws

DO NOT BEND 

THERMISTOR 

UP/DOWN

FIG. 17c STEAM SENSOR EXPLODED

17