Kohler Decision-Maker 1 Manual page 53

Controller Instrumentation
Controller instrumentation not functioning properly.
Loose input or component lead
connection at AC fuse terminal
block (TB3) or at component?
Blown 1.5-amp fuse at
AC fuse terminal block
(TB3)? See Figure 3-20.
Troubleshoot the gauges, meters, senders,
current transformers, etc. See Section 6.
Indicator Panel Circuit Board
Lamp circuit board not functioning or not functioning
properly (fault lamps and alarm horn only).
Press lamp test button.
Do all lamps light?
Is DC voltage present at lamp
circuit board? Check for input
voltage at soldered connections
on lamp circuit board. See
Figure 3-21 for P4 terminals.
Is DC voltage present at
main circuit board P3/P4
ribbon connector?
Replace main
circuit board.
TP-6356 4/12
No
No
Yes
No No
No
Yes
No
Yes Secure the connection.
Yes Replace the fuse.
If all lamps stay
illuminated, check wiring
to TB1 terminal strip.
Disconnect all wiring to
controller main circuit
board TB1 terminal strip.
Does lamp circuit board
function correctly?
Replace lamp
Yes
circuit board.
Replace ribbon
connector.
Section 3 Decision-Makerr 3+ Troubleshooting
Correct wiring and
connections to TB1
Yes
terminal strip.
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