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20
More Troubleshooting
Behavior Protection
Troubleshoot Steps
Red
Fault
LED ON
High
Temperature
Short Circuit
1.Double check that your wiring is correct with a multi-meter and
that the battery levels are suitable within the operating voltage
range
2. Observe the ambient temperature. Avoid installations in direct
sun. Ambient temperatures above 122°F/50°C will cause the
unit to stop functioning until conditions get cooler.
Move the unit to a cooler location or introduce ventilation into the
install location. The protection is automatic, and the dc-dc will
resume normal function upon cooling down.
1.The DC-DC is experiencing an internal short circuit due to an
imbalance between its input and output circuits. Restart the
DC-DC by disconnecting the input/output and then reconnecting
it again.
The error will clear automatically upon a successful restart. If
issues continue with a permanent red led, then contact support
to address the previous troubleshooting steps.
Behavior Cause
Fix
Green
Power
LED OFF,
batteries
correctly
connect-
Incorrect D+
Connection
Wrong
battery at
input/
output
Battery
voltage too
low or high
1.Check to make sure there is a cable connected between the
D+ Terminal (DC Output Side) and the ignition circuit. The D+
needs a 12V signal to start/stop the DC-DC. Splicing required.
Refer to your vehicles fuse box layout to identify the ignition line
or similar location that is live when the alternator is running.
1.Verify correct battery placement with tight and secure
corrections, eliminate any breaks.
2.DC Input terminals should be the starting battery and should
also have a charging source (alternator in this case).
3.DC output terminals should be the auxiliary or house battery
you’re charging.
1.The DC-DC requires 12V batteries more than 10V (Lead Acid)
and can not exceed 15.5V so no 24V batteries.
Use a multi-meter to measure the battery terminals and verify
that the dc-dc terminals match the respective values (or similar).
Continued problems with batteries may need to be taken to a
nearby battery tester at your nearby automotive shop.
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