October 21
st
, 2021 45
Troubleshooting Guide
LCD is not powering on
o Check all connections- at least one of the following power sources is required: PV/Grid/Battery
o Try pressing the power button, touchscreen, or navigation buttons
Panels are connected, but DC Light is not on
o PV voltage must be 150V-425V | It’s night
Panels are not producing
o Check for proper wiring on all solar panel connections
o Turn PV disconnect "ON"
o Check that the PV input voltage is not greater than 425V
o If the system says PV = 0V, check PV polarity
Panels are not producing much power
o PV Wire Strip Length: 5/8". Your batteries are charged; you can test Grid Sell to verify.
The system does not keep batteries charged
o Check the charge setting in the Charge Menu
Auto Gen-Start not working
o Check to make sure your generator is compatible with Auto Start
o Make sure that the Auto Gen Start wire is adequately connected to the Sol-Ark 12K and the generator
Normal LED isn't on
o Sol-Ark 12K is in pass-through-only mode, only a Grid connection.
o Sol-Ark 12K is not working correctly (Call us)
The alarm light is on
o Check the system alarms menu to identify the alarm
Grid HM value is negative when it should be positive (only applies in limited home mode)
o Limiter Sensors are backward, L1/L2 sensors are swapped, or incorrectly wired L1/L2 sensors. Try Auto Learn.
AC Overload Fault or Bus Unbalance Fault
o Check Transfer Switch/Subpanel wiring
o Check for large loads that consume more than the inverter rating (EX: AC units over 3 tons)
The system connects to grid and quickly disconnects
o With a DMM, verify your Neutral wire connection (should be 0 Vac referenced to GND)
o Check your Freq is set to 60Hz, and the 12K measures 120V on L1 / L2 vs. N.
o If overloading: verify 120/240V grid input and load output wires are not swapped.
o If 120/208V, the L1 and L2 are phase-specific. So, you may have to swap Grid L1 / L2 for 208V applications.
DC Overload Fault
o Check PV voltage
o Make sure you have not wired more than two (2) solar strings in parallel
System is beeping
o Check the system alarms menu to see which alarm has been triggered. Most alarms will self-reset.
o There is no battery connected. If not using a battery, select no battery and disable activate batt in Batt menu.
▪ Turn off the center button, remove AC Grid and PV Power for the 30s (screen is dead), and then power up
to fully reset the system.
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