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Safety
Functions
(1) Check the stop function of the emergency stop button.
(2) Simulate a shutdown and check shutdown signal communication.
(3) Check the body warning signs and other equipment markings and
replace them if they are found to be blurred or damaged.
Officially run for six
months, then every year
thereafter.
4.5 Inverter System Troubleshooting
4.4.1 Inverter System Troubleshooting Guide
LCD is not powering on.
• Check all connections- at least one of the following power sources is required: PV/Grid/Battery.
• Try pressing the power button, touchscreen, or navigation buttons
Panels are connected, but DC Light is not on
• PV voltage must be 170V-500V | It’s night
Panels are not producing.
• Check for proper wiring on all solar panel connections
• Turn PV disconnect "ON"
• Check that the PV input voltage is not greater than 500V
• If the system says PV = 0V, check the PV polarity
Panels are not producing much power.
• PV Wire Strip Length: 5/8". Your batteries are charged; you can test Grid Sell to verify.
The system does not keep batteries charged.
• Check the charge setting in the Charge Menu
Auto Gen-Start is not working.
• Check to make sure your generator is compatible with Auto Start
• Make sure that the Auto Gen Start wire is adequately connected to the Sol-Ark and the generator
• Ensure the generator connected is a three-phase gen and that its phasing is correct
Normal LED isn't on
• Sol-Ark is in pass-through-only mode, with only a Grid connection
• Sol-Ark is not working correctly (Call us)
The alarm light is on
• 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)
• Limiter Sensors are backward, or L1/L2/L3 sensors are swapped or incorrectly wired. Try Auto Learn
AC Overload Fault or Bus Unbalance Fault
• Check Transfer Switch/Subpanel wiring
• Check for large loads that consume more than the inverter rating
The system connects to the grid and quickly disconnects.
• With a digital multimeter, verify your Neutral wire connection (should be 0 Vac referenced to GND)
• Check your Freq is set to 60Hz, and that the 30K-3P measures 120V on L1 / L2 / L3 vs. N
• If overloading: verify 120/208V grid input and load output wires are not swapped
• The L1, L2, and L3 are phase specific. So, you may have to swap Grid L1 / L2 / L3 for 208V applications.
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