User Manual

[page 14] | gpelectric.com
®
Topic Issue Possible Cause How to Tell Remedy
Problems with
the Current
Current reading
shows 0A at
daytime, with
clear sunny
skies
Current is being limited
below 1A as per normal
operation or poor
connection between solar
array and controller.
1. The State of Charge (SOC) screen is
close to 100% and the Sun and Battery
icon are present with an arrow between.
2. With the solar array in sunlight, check
voltage at the controller solar array
terminals with a voltmeter.
3. If there is no reading at the controller
solar array terminals, the problem is
somewhere in the wiring from the solar
array to the controller.
Hold down the MAX BOOST Button
for approximately 3 seconds to
activate Maximum Power Boost.
This will allow the controller to charge
batteries to 14.4 +/- 0.1V (ooded
and AGM) or 14.1 +/- 0.1V (Sealed/
Gel) with all current the solar array is
producing.
Check all connections from the
controller to the array including
checking for correct wire polarity.
Check that all connections are clean,
tight and secure. Continue with the
solutions below for additional help on
low current readings.
Current reading
is less than
expected at
daytime, with
clear sunny
skies
1. Current is being limited
below 1A as per normal
operation.
2. Incorrect series/parallel
conguration and/or wiring
connections and/or wire
gauge.
3. Dirty or shaded module
or lack of sun.
4. Blown diode in solar
module when two or more
modules are connected in
parallel.
1. Battery State of Charge screen is close
to 100% and the Sun and Battery icon are
present with an arrow in between.
2. Check that the modules and batteries
are congured correctly. Check all wiring
connections.
3. Modules look dirty, overhead object is
shading modules or it is an overcast day
in which a shadow cannot be cast.
4. Disconnect array wires from the
controller. Take a voltage reading between
the positive and negative array wire. A
12-volt array should have an open circuit
voltage between 17 and 22 volts.
Reconnect in correct conguration.
Tighten all connections. Check wire
gauge and length of wire run.
If dirty or obstructed, clean modules,
clear obstruction or wait for
conditions to clear.
If the open circuit voltage of a
non-connected 12-volt array is lower
than the manufacturer’s
specications, the module may be
faulty. Contact the Go Power!
Technical Support team as listed in
section 10.1 for assistance.
TROUBLESHOOTING