Bunn C Manuale Utente

Page 27

Location:

The    warmer  element(s)  is  located  under  the

warmer plate.

Test Procedures:
1. Disconnect the brewer from the power source.
2. Use the white or red wire to the terminal block and

the  white/red,  brown/black  or  violet  wire  to  the
"ON/OFF" switch.

3. Check voltage across the white or red and white/

red, brown/black or violet with a voltmeter with the
"ON/OFF" switch in the "ON" position. The indica-
tion must be:
a) 120 volts ac for two wire 120 volt models and
three wire 120/240 volt models.
b) 200 to 230 volts ac for two wire 200 or 230 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
white or red and white/red, and brown/black or  violet
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 the illustration below when reconnecting

the wires.

WHI to Terminal Block (120V
or 120/240V Brewers)
RED to Terminal Block (200V or 
230V Brewers)

WHI/RED to ON/OFF Switch (One Lower Warmer)
BRN/BLK to ON/OFF Switch (Top Front Warmer 
or Side Warmer)
VIO to ON/OFF Switch (Top Rear Warmer or
Rear Side Warmer)  

P1159

P1158

10841 071000