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TP-6905 6/14 63Section 5 Troubleshooting
5.6 Controller Troubleshooting
Figure 5-2 contains basic troubleshooting information for the RDC2 controller.
Problem Possible Cause Corrective Action
Controller LCD
displayisoff.
Low or no battery voltage. Check connections.
Check generator set battery. See Figure 5-1.
Controller display
backlight is off.
Backlight turns off after about 1 minute with no
activity.
Backlight will turn on when a button is pressed or
the 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.
Low or no battery voltage. Check battery connections.
Check generator set battery. See Figure 5-1.
LCM relays do not
operate.
Bad connections. Check wiring and connections. Verify that cable size
and length of run comply with the instructions in the
Installation manual.
Low or no battery voltage. Check battery connections.
Check generator set battery. See Figure 5-1.
Date is flashing. Controller power was disconnected and then
reconnected.
Check battery connections. See Figure 5-1.
Check utility power connection for the built-in battery
charger.
Reset the time, date, and exercise schedule. See
Section 2.5.7, Setting the Exerciser at Power-Up.
Figure 5-2 RDC2 Troubleshooting Chart