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• If the AC Output Voltage is ~120V per leg (this is Wye configuration) and you have more than one
Inverter in parallel, contact engineering support for further assistance.
4.4.2 Troubleshooting Phasing Issues.
If the Sol-Ark screen shows Grid Phase Wrong, there is a phasing issue with your wiring, and it may cause
overload faults (F18, F26, F34) and WILL CAUSE DAMAGE if left unchecked.
Single Sol-Ark: To locate the improperly wired phases, measure L1 to L1 (Top Screws) between the Grid
and Load terminals; you should see 0V AC. Repeat for L2 to L2 and L3 to L3 between the Grid and Load
terminals. Attempt to correct the wiring until you only read 0V AC between L1 to L1 | L2 to L2 | L3 to L3
Parallel inverters: measure L1 of the Grid Terminal to L1 of another unit's Grid terminal L1; you should see
0V AC. If in 208V parallel, measure the lines of the same wire color between sol-arks to see if you read 0V
AC.
Make sure to correct both the Grid and Load wiring; they both need to be correct.
If the error persists, you will need to check your AC wiring beyond the Inverter and may also need to verify
that the phases are properly labeled coming from your meter.
4.4.3 Sol-Ark Inverter Error Codes
F1 DC Inversed Failure
If you have parallel systems and turn one system off, you with get this
notification.
a fault.
F8 GFDI_Relay_Failure
Current Leakage from inverter AC output to Ground, check Ground
and neutral are connected at the main panel.
F13 Grid_Mode_change
It can happen when not using batteries or if Grid Input settings
are changed. This is a notification,
a fault. If you switch from
No Batt to Battery mode, power the system down completely to
restart.
F15 AC_OverCurr_Failure
It is usually caused by Loads too large for the Inverter. If
off-grid, the battery discharge amps are
programmed too
low. Overloads can result in F15, F18, F20, or F26.
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