Indicator Lamp(S) - Bunn OT Operating & Service Manual

SERVICE (cont.)

Indicator Lamp(s)

FIG. 20 INDICATOR LAMP - MODEL OT
FIG. 21 INDICATOR LAMP - MODEL RT
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.
IN G
R N
W A ER
WA RM Y
! H HE AT R DR
CA NTE AY
HIG IL DE AW
T BO TIB LES RIS KS
DO NO MB US MP LY UID
EP CO CO T LIQ
KE RE TO /HO RD
ILU ILU RE E HA ZA
FA S FA D FIR
GL AS S AN
RN
BU
P1688
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.
P1687
FIG. 22 INDICATOR LAMP WIRING
MODEL
OT Upper BLK
WHI or RED
OT Lower BLK
WHI or RED
RT BLK
WHI or RED
Page 22
WHI or RED
(see below)
BLK (see below)
P1694
to Warmer Switch
to Warmer
to Harness P2
to Start Switch
to On/Off Brew Station Warmer
Switch
to Timer P2
to Brew Station Warmer
to Start Switch
to On/Off Brew Station Warmer
Switch
to Right Rear Warmer Switch
to Left Front Warmer
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