Specifications

5. Note the position and color of wires
and cable connected to the
power/logic board assembly, paying
particular attention to the position of
the black wires connecting each of
the four stirring motors to the boards.
6. Disconnect wires attached to the
power/logic board assembly. If you
have a stirrer skip to step 9.
7. On stirring hot plate models note the
position of the wires running from the
thermocouple for the top plate.
Remove these wires from the logic
board.
8. Gently pull both power board/logic
board assembly 3-4” to gain access to
the lower thermocouple wire for the
external probe. Detach this thermo-
couple wire.
9. At this point you can remove either
the logic board or the power board
from the assembly by removing the
screws which secure both boards to
the metal bracket running between
the two boards, and to the support
posts.
10. Replace either the power board or the
logic board and reassemble the board
to the support posts, and to the metal
bracket running between both boards.
11. If you have a stirring hot plate model,
slide the assembly in place and
secure the four screws which mount
the bracket for the board assembly to
the metal plate.
23
MAINTENANCE AND SERVICING