Solis S5-EH1P

Single-phase hybrid inverter family whose alarm list is published through the Solis service documentation.

Known fault codes

1010 (OV-G-V)Moderate

Solis

AC grid overvoltage detected

September 2026View

1011 (UN-G-V)Moderate

Solis

AC grid undervoltage detected

September 2026View

1014 (Backfeed)Moderate

Solis

Grid backfeed condition detected

September 2026View

1015 (NO-GRID)Moderate

Solis

Grid not detected

September 2026View

1018 (OV-G-I)High

Solis

AC grid overcurrent detected

September 2026View

1021 (OV-BUS)High

Solis

Internal DC bus overvoltage

September 2026View

1023 (UNB-BUS)Moderate

Solis

DC bus voltage unbalanced

September 2026View

1027 (DC-INTF)Moderate

Solis

DC interference detected

September 2026View

1030 (GRID-INTF)Moderate

Solis

Grid interference detected

September 2026View

1032 (OV-TEM)High

Solis

Inverter overtemperature shutdown

September 2026View

1033 (PV ISO PRO)High

Solis

PV array isolation fault

September 2026View

1034 (I-Leak-Pro)High

Solis

Leakage current protection triggered

September 2026View

1035 (RelayChk-Fail)High

Solis

Internal relay self-check failed

September 2026View

1037 (DC-Inject Fault)High

Solis

Excessive DC injection into grid

September 2026View

1040 (AFCI Protection)Critical

Solis

Arc-fault protection triggered

September 2026View

2010 FailsafeModerate

Solis