Kohler M340+ - Page 53

4-26 Controller Troubleshooting
TP-5672 11/95
No
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Refer to Section 4—
Power To The System
Troubleshooting.
Is the Volt/Freq jumper
installed in JP1 on the
logic board?
Is the controller sensing
the normal source only?
Is there normal source
voltage available at the
power conversion unit?
No power is available.
Is Index 1 displaying a
voltage reading for the
normal source?
Are the pickup and dropout
set points correct in Index
6?
Reset set points.
Replace logic board.
Is emergency source
voltage available at the
power conversion unit?
No power source
is available.
Refer to Power To The
System Troubleshooting.
Is Index 2 displaying a
voltage reading for the
emergency source?
Are the pickup and
dropout set points correct
in Index 7?
Reset set points.
Replace logic board.
No
Install the Volt/Freq jumper
on JP1 and power down the
controller for 1 minute
mininum.
In Index 11 is Norm &
Emer sensing enabled?
Troubleshoot shunt-jumper
controlled options. See
Figure 4-18.
Figure 4-24. Troubleshooting—Voltage and frequency sensing does not work