Bunn EASY CLEAR H5E User Manual

12

Limit Thermostat
Location:
The limit thermostat is located on the tank lid.
To test the limit thermostat, access will also be needed 
to the terminal block located at the rear of the dispenser.

If voltage was present as described, reconnect the black 
wire and proceed to #5.
If voltage was not present as described, refer to the Wir-
ing Diagrams and check the dispenser wiring harness.

5.  Check for continuity across the terminals of the 

limit thermostat.

If continuity is not present as described, the circuit is 
broken. Press the reset button of the limit thermostat 
and recheck for continuity.
If continuity is not present as described, replace the 
limit thermostat.

Removal and Replacement:
1.  Remove both wires from the limit thermostat ter-

minals.

2.  Remove the two #10-32 nuts attaching the limit 

thermostat to the top of the tank.

3.  Install the new limit thermostat and secure into 

place with two #10-32 nuts.

4.  Refer to FIG. 4 when reconnecting the wires.

Test Procedure:
1.  Disconnect the dispenser from the power source.
2.  There are two black wires on the limit thermostat 

terminals. One comes from the terminal block. The 
other goes directly to the tank heater terminal.  Re-
move the black wire at the limit thermostat coming 
from the terminal block.

3.  Check the voltage across the black wire removed 

from the limit thermostat and the white wire or red 
wire of the terminal block with a voltmeter. Connect 
the dispenser to the power source. The indication 
must be:

 

a.) 100 to 120 volts ac for 100 to 120 volt models 
or

 

b.) 200 to 240 volts ac for 200 to 240 volt models

 or
 

c.) 230 volts ac for 230 volt models.

4.  Disconnect the dispenser from the power source.

FIG. 12a LIMIT THERMOSTAT

FIG. 12c LIMIT THERMOSTAT WIRING

BLK to Terminal Block

BLK to Tank Heater

P4093

P1776

Reset

P1993

FIG. 12b LIMIT THERMOSTAT

42311 071310