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FIG. 22 INDICATOR LAMP WIRING
FIG. 20 INDICATOR LAMP - MODEL OT
FIG. 21 INDICATOR LAMP - MODEL RT
SERVICE (cont.)
Indicator Lamp(s)
c) 100 volts ac for two wire 100 volt models.
4. Disconnect the brewer from the power source.
If voltage is present, the indicator lamp is operating
properly.
If voltage is not present, replace the indicator lamp.
Removal and Replacement:
1. Compress the clips inside the housing and gen-
tly push the indicator lamp through the opening.
2. Remove the wires from the indicator lamp termi-
nals.
3. Refer to FIG. 22 when reconnecting the wires.
4. Push the new indicator lamp firmly into the
opening.
Location:
The indicator lamps are located beneath their associ-
ated warmers, FIG.s 20 and 21.
Test Procedure:
1. Check continuity of the black wire from the switch
to the indicator lamp.
2. Check continuity of the white or red wire from
the indicator lamp to the terminal block.
If continuity is present, proceed to #3.
If continuity is not present, refer to Wiring Diagrams
and check brewer wiring harness.
3. Check for voltage across the indicator lamp ter-
minals. Connect the brewer to the power source.
The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 200 or 240 volts ac for two wire 200 volt or
240 volt models and three wire 120/240 volt
models.
MODEL
OT Upper BLK to Warmer Switch
WHI or RED to Warmer
to Harness P2
OT Lower BLK to Start Switch
to On/Off Brew Station Warmer
Switch
WHI or RED to Timer P2
to Brew Station Warmer
RT BLK to Start Switch
to On/Off Brew Station Warmer
Switch
WHI or RED to Right Rear Warmer Switch
to Left Front Warmer
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IN
J
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PN: 658
1985 BUNN-O-MATIC CORPORATION
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!