83
F16 GFCI_Failure
Ground fault. Check PV+ or PV- wiring (which must be
ungrounded). Exposed PV conductors + rain can also cause. Check
that the neutral line and Ground are not double-bonded (common
with portable generators).
F18 Tz_Ac_OverCurr_Fault
Overloaded the Load Output (reduce loads) or overloaded a
generator (see the inverter separate manual for details). Wiring
Short on the AC Side can also cause this error. Overloads can
result in F15, F18, F20, or F26.
F20 Tz_Dc_OverCurr_Fault
It is typically caused by DC current from the battery that is too
large (ex: 4 Ton AC Unit) or too much PV current (3 or more
strings in parallel). Overloads can result in F15, F18, F20, or F26.
F22 Tz_EmergStop_Fault Initiated Emergency Stop; see sensor pinout table.
F23 Tz_GFCI_OC_Fault
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.
F24 DC_Insulation_Fault
An exposed PV conductor combined with moisture is faulting (can
cause F16, F24, F26).
F25 AC_Active_Batt_Fault
No battery connection to the Inverter and Activate Battery is
enabled. Disable Activate Battery in settings while no battery is
connected.
F26 BusUnbalance_Fault
Too much load on 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.
F29 Parallel_CANBus_Fault
Usually, a communication error for parallel systems, check cables,
and MODBUS addresses.
F30
AC_MainContactor_Faul
Contact Sol-Ark.com
F31 Soft_Start_Failed The soft start of a large motor failed.
F34 AC Overload Fault AC Overload or load shorted. Reduce heavy loads.
F35 AC_NoUtility_Fault Grid connection lost
F37 DCLLC_Soft_Over_Cur Software DC overcurrent
F39 DCLLC_Over_Current Hardware DC overcurrent
F40 Batt_Over_Current Batteries exceeded their current discharge limit.
F41 Parallel_System_Stop
If one system faults in parallel, this normal fault will register on the
other units as they disconnect from grid.
F45 AC_UV_OverVolt_Fault
Grid under-voltage causes a disconnect. This will self-reset when the
grid stabilizes.
F46 Parallel_Aux_Fault
Cannot communicate with other parallel systems. Check Master = 1,
and Slaves are 2-9, ethernet cables are
connected.
F47 AC_OverFreq_Fault
Grid over Frequency (common in power outages) causes a
disconnect. Will self-reset when grid stabilizes.
F48 AC_UnderFreq_Fault
Grid under Frequency (common in power outages) causes a
disconnect. Will self-reset when grid stabilizes.
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