April 21, 2021 38
• Batteries were connected backwards
o Battery breaker will trip. Can cause damage!
• Why is LCD screen still on when power button is off?
o If PV or Grid power, LCD stays on but inverter and loads are off.
• The Batt % meter is not reaching 100%
o System needs to go through a small discharge/charge cycle to first calibrate battery
• Generator setup is reading 0Hz
o Select “General Standard” instead of UL1741. Then widen the voltage range to 53Hz-65Hz.
• Color Touchscreen is Frozen
o Press and hold the escape button [] for 7-10 seconds
Sol-Ark 5K Error Codes
If you have parallel systems and turn one system off, you with get this notification. Not a fault.
Current Leakage from inverter AC output to ground, check ground and neutral are connected at the main
panel
Can happen when not using batteries or if Grid Input settings are changed. This is a notification, NOT a
fault. If you change from No Batt to Battery mode, power system down completely to restart.
Usually caused by Loads being too large for the inverter. If off-grid, the battery discharge amps
programmed too low. Overloads can result in F15, F18, F20, or F26.
Ground fault. Check PV+ or PV- wiring (which must be ungrounded). Exposed PV conductors + rain can also
cause. Check that neutral line and Ground is not double bonded (which is common with portable
generators).
Overloaded the Load Output, reduce loads. Wiring Short on the AC Side can also cause this error. Overloads
can result in F15, F18, F20, or F26.
Usually caused by DC current from battery that are too large (ex: 4 Ton AC Unit). Overloads can result in
F15, F18, F20, or F26.
Emergency Stop was initiated, see sensor pin out table.
PV Ground fault. Check PV+ or PV- wiring (which must be ungrounded or damage can occur). Typically
caused by pinched PV wire grounding the PV+ or PV-. Grounded PV wire can cause F20, F23 or F26.
Exposed PV conductor combined with moisture is faulting (can cause F16, F24, F26).
No battery connected to the Inverter and Activate Battery is enabled. Disable Activate Battery in settings
while no battery is connected.
Too much load one leg (L1 or L2) Vs the other leg or DC loads on the AC output when off-grid. Grounded PV
wire can cause F20, F23 or F26.
Usually a communication error for parallel systems, check cables and MODBUS addresses
Soft Start of large motor failed
AC Overload or load shorted. Please reduce heavy loads.
Current discharge limit for batteries was exceeded
If one system faults in parallel, this normal fault will register on the other units as they disconnect from Grid
Grid under voltage causes disconnect. This will self-reset when grid stabilizes.