Bunn CWTF-TS-MV - Manual (Page 29)

Page 29
SERVICE (cont.)
WARMER ELEMENT(S)(CWTF MODELS ONLY)
Location:
The warmer elements are located under the warmer
plates.
Test Procedures:
1. Disconnect the brewer from the power source.
2. With a voltmeter, check voltage across the white
wire from the terminal block and the wire from the
"ON/OFF" switch to the warmer element with the
"ON/OFF" switch in the "ON" (upper) position. The
indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 120 volts ac for three wire 120/208 volt and 120/
240 volt models.
4. Disconnect the brewer from the power source.
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to
Wiring
Diagrams and check brewer wiring harness.
5. Check the continuity across the two terminals on
the warmer element.
If continuity is present as described, reconnect the
wires on the warmer element.
If continuity is not present as described, replace the
warmer element.
Removal and Replacement:
1. Remove the three #4-40 screws securing the
warmer assembly to the brewer.
2. Lift the warmer assembly from the brewer.
3. Disconnect the two wires from the warmer ele-
ment terminals.
4. Remove the two #8-32 nuts securing the warmer
element to the warmer plate.
5. Securely install new warmer element.
6. Reconnect the two wires to warmer element termi-
nals.
7. Securely install warmer assembly on the brewer.
8. Refer to Fig. 24 when reconnecting the wires.
FIG. 23 WARMER ELEMENTS