Kohler KSS User Manual

TP-6461 1/08 39Section 3 Transfer Switch Troubleshooting
Problem
See
Section
CheckPossible Cause
Exerciser does not run regularly
or at all
Exerciser not set Use View Exercise Setup screen to
check exerciser settings.
ATS O/I/M
Maintenance DIP switch SW1B
closed
Check for Maintenance Mode message
on controller display.
—
Check the DIP switch setting. 4.8
Exercise interval different than
expected
Use View Exercise Setup screen to
check exerciser settings.
ATS O/I/M
Failure to transfer
Alternate source is not available Check source connections.
Check source voltage and frequency.
Check source settings.
1.2.2
3.3.2
2.4
Unloaded exercise selected Use View Exercise Setup screen to
check exerciser settings.
ATS O/I/M
Unloaded test sequence selected Press the End Test button, wait for the
test sequence to stop, and then select
a Loaded or Auto Loaded test
sequence.
ATS O/I/M
Pre-transfer time delays operating
Check controller display for time delay
indication. See Section 4.4 for
information on time delays during
normal operation.
4.4
Check the time delay settings. 2.5
Maintenance DIP switch enabled Check DIP switch setting. 4.8
Connected source available Check the Source Available LEDs. 4.1
Preferred source selection set to
emergency and emergency
source is available
Check the preferred source selection
and the Source Available LEDs.
—
Supervised transfer control switch
(optional) in manual position
Check the position of the supervised
transfer control switch, if equipped.
Move the switch to the TRANSFER or
AUTO position, as appropriate for the
application.
ATS O/I/M
Failure to transfer:
Jammed or damaged solenoid Inspect and test solenoid coil. 3.6
Transfer switch mechanical
Faulty or worn core spring Inspect and replace damaged parts. TOC
binding
Bent main contact shaft Inspect and replace damaged parts. TOC
Jammed main contacts Check for foreign object.
Contact lever or pushbutton
jammed against solenoid
counterweight
Test control contacts. See the Table of
Contents for test procedures for your
model transfer switch.
TOC
Loose hardware. Check for and tighten loose hardware. 1.2.2
Accumulation of dirt or other
foreign material
Clean. Lubricate if necessary. 1.2.2
O/I/M= Operation and Installation Manual; O/M = Operation Manual; TOC = Table of Contents, this manual;
W/D = Wiring Diagrams

Kohler KSS Specifications

General

Brand	Kohler
Model	KSS
Category	Switch
Language	English