71769_SC315Solar_GenIII_UserManual_RevC
© 2014, Carmanah Technologies Corporation
SC315 SOLAR LED RRFB USER MANUAL
TROUBLESHOOTING
29
Troubleshooting
Symptom
Possible Cause - What to Check
The EMS does not activate, does not display
any information, or the system does not
activate.
This is typically caused by low or no voltage from the batteries.
Check both of the fuses. See the maintenance section of this manual for fuse information.
Using a volt meter, measure the battery voltage. It should have a reading of 12.0 V or greater.
If the voltage is very low, charge or replace the batteries and monitor the system for proper
operation. Ensure that the solar panel is clean, clear of debris, and is not shaded by buildings
or vegetation. If the solar panel is covered or shaded, this will prevent proper battery charging.
Once the batteries have proper voltage, check the EMS for error codes and run the 'bISt'
function. See the EMS Programming and Testing section of this manual.
LEDs won't flash when button on same post
is pressed
This can be caused by either button failure, a wiring issue, low battery voltage, or the unlikely
event of an EMS failure.
Check to insure that the button is functioning and it is providing the typical feedback. If the
button has an LED or audio feedback, ensure that these are working.
Check the wiring to the button for continuity and make sure the wires are not pinched anywhere
along their length.
Check the wiring to the LED Light Bars for continuity and make sure the wires are not pinched
anywhere along their length.
Check that the wiring pattern (polarity) is correct on the LED Light Bars.
Check the battery voltage, either through the OBUI or with a voltmeter (see item above)
Check the OBUI for errors. See the EMS Programming and Testing section of this manual.
Test the system using the OBUI 'tESt' function. See the EMS programming and testing section
of this manual. If the LEDs flash using the OBUI functions, then the problem is in the button or
wiring to the button.
LEDs on same post flash, but other systems
in the crosswalk set won't flash
The SC315 communicate via a radio. If one system is activated, but the other systems in the
crosswalk set are not coming on, this points to a radio issue.
Ensure that all of the units in a crosswalk set are set to the same radio channel using the OBUI.
See the EMS Programming and Testing section of this manual.
Ensure that the units in a crosswalk set are not too far apart. The maximum distance for
proper radio communication is 500 unobstructed feet. There can be no barriers or obstructions
between systems, such as buildings or billboards.
One Light Bar flashes, but the other Light
Bar on the same post does not flash
This is likely caused by improper wiring of the light bars.
Ensure that the wire colors match the instructions on the Rectangular Flashers and in this
manual. If they do not match then one light bar may not activate.
One Rectangular Flasher flashes, but the
other Rectangular Flasher on the same light
bar does not flash
This is likely caused by incorrect wiring on the LED Light Bars.
Check each of the connections at the Rectangular Flashers to ensure correct wiring pattern
(polarity).
For a Dual Light Bar system with Single Pedestrian Confirmation Lights, ensure that both
confirmation lights are pointing in opposite directions and that the wiring pattern is followed.
