Kohler 20RESB User Manual

TP-6805 8/15 87Section 5 Troubleshooting
5.14 Controller Troubleshooting
Refer to the controller troubleshooting table in
Figure 5-17 when troubleshooting procedures in
Section 5.13 indicate a possible controller problem.
Also check the controller display for fault messages and
refer to Section 5.11, Fault Messages.
Always check the controller settings before replacing
the controller. RDC2 controller settings can be checked
and adjusted through the controller’s user interface or
using a personal computer and Kohlerr SiteTecht
software. The generator set operation manual contains
the instructions for checking and changing the controller
settings. The DC2 controller settings can only be
changed using SiteTecht. See TP-6701, SiteTech
Software Operation Manual. Kohlerr SiteTecht
software is available to authorized distributors and
dealers.
Problem Possible Cause Corrective Action Reference
Controller LCD
displayisoff.
Low or no battery voltage Check controller connections.
Check DC power to the RDC2
controller.
Check generator set battery
connections and condition.
Check utility power connection
to the generator set terminal
block (power for battery
charging).
W/D, Section 8
Controller display
backlight is off.
Backlight turns off after about 1
minutewithnoactivity
Backlight will turn on when a
buttonispressedorthe
generator set starts.
—
Loss of
communication to
accessory modules.
Bad connections Check wiring and connections.
Verify that cable size and length
of run comply with the
instructions in the Installation
manual.
Generator set Installation
Manual or accessory module
documentation.
Low or no battery voltage Check generator set battery
connections and condition.
See “Low or no battery voltage”
above.
—
Load management
relays do not
operate
(if equipped).
Bad connections Check wiring and connections.
Verify that cable size and length
of run comply with
specifications.
Documentation for the load
management device or power
relay modules.
Low or no battery voltage Check generator set battery
connections and condition.
See “Low or no battery voltage”
above.
—
Date is flashing. Controller power was
disconnected and then
reconnected
Check battery connections.
Check controller connections.
Check utility power connection
to the generator set terminal
block.
Reset the time, date, and
exercise schedule.
W/D, Section 8
Generator set O/M
Figure 5-17 RDC2 Controller Troubleshooting

Kohler 20RESB Specifications

General

Brand	Kohler
Model	20RESB
Category	Portable Generator
Language	English