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P1099
P1094.35
Location
The triac/heat sink is located on the lower rear of
the brewer.
Removal and Replacement
NOTE - each triac installation requires the use of an
approved silicone heat sink compound. Bunn-O-
Matic recommends the use of Dow Corning 340 com-
pound or equivalent. It can be purchased direct from
Bunn-O-Matic (part number M2522.1000).
1. Place the tank heater switch on the DBC board
assembly in the “OFF” position.
2. Disconnect triac wires, white/violet from terminal
block, blue from tank heater, blue and tan from the
DBC board assembly.
3. Remove the two #6-32 screws securing the triac/
heat sink assembly to the lower rear of the brewer.
4. Remove heat sink, triac and triac leads as an
assembly.
5. Remove the one #6-32 screw securing triac to the
heat sink and discard triac with leads.
SERVICE (cont.)
TRIAC/HEAT SINK ASSEMBLY (DBC ONLY)
6. Apply heat sink compound and secure new triac
assembly on rear of the heat sink with one #6-32
screw.
7. Route the triac wires through the tank support
channel.
8. Secure triac/heat sink assembly to the lower rear
of the brewer with two #6-32 screws.
9. Reconnect the wires of the new triac assembly.
Refer to Fig. 14 when reconnecting wires.
WHI/VIO to Terminal Block (Red Insert)
BLU to Tank Heater
BLU to DBC Board J1-17
TAN to DBC Board J1-16
FIG. 14 TRIAC/HEAT SINK TERMINALS
FIG. 13 TRIAC/HEAT SINK
27362 092996