Eco Online™ Solar Panel -- Installation and User Manual
© Copyright 2014 Optex Solar Pty Ltd. All rights strictly reserved.
Page 9
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Trouble Shooting Guide
Note: solar panels have no moving part and are extremely reliable. The only components that can fail are the diodes
which can short out a panel and produce a 0V across the junction box terminals. The following is a step by step
trouble shooting guide:
Less than 18V open circuit in full sun
Unsolder and remove the diodes in the junction
box and again measure the open circuit voltage
20V-22V open circuit voltage
Next, connect solar panel to your charging system
Measure charging current using multimeter
Measure the open circuit voltage using a multimeter with the panel in full sun.
Do you get 20V-22V?
(Note: in diffuse sun or hot conditions the voltage can be slight lower ~19V)
20-22V open circuit
Please contact
EcoOnline for new
diodes
Still less than 18V
Please return the
panel to EcoOnline
for a Warranty Claim
Little Current
Note, charging current
can depend on the
state of the battery
Current okay
Under ideal cool and
sunny conditions
charging current should
be close to the I
max
rating on the back of
the panel
Charging system and battery
is okay but panel is still not
charging
Please return the panel to
EcoOnline for a Warranty Claim
Check your charging system and
the health of your battery
Please check the trouble shooting
guide for your regulator and/or
battery
