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Sungrow SG250HX 88

Code: 88
Shown as: Electric Arc Fault
Page: 94
ID: fc:sungrow-sg250hx-88
IRI: https://solarlattice.org/kb/fc/sungrow-sg250hx-88
Status: active
Also known as: 88, Sungrow 88, Electric Arc Fault
Category: Inverters

Class fault drafted · lead

Production stops drafted · lead

Clears after a manual reset drafted · lead

Decoded

May indicate arc fault; look at DC cable, DC connector; confirm with visual inspection; do: DC wiring check, cable replacement.

Defined in

SG250HX-US-UEN-Ver17-202203 — Sungrow · 17 · page 94 drafted · lead
- tbl=42.r3 h=133cd990681b

The manufacturer's own cause and corrective text is not reproduced here.

Same code in other families

Sungrow SG-CX-US 088

Claims

`defined_in`

c1 drafted · lead SG250HX-US-UEN-Ver17-202203

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b

`indicates`

c2 drafted · lead Arc fault

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

`affects`

c3 drafted · lead DC cable

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

c4 drafted · lead DC connector

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

review note: support check: partial - Terminals and fuses are mentioned, loose terminals/weak contact, but 'DC connector' is not explicitly named.

`detected_by`

c5 drafted · lead Visual inspection

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

review note: support check: partial - Checking for damaged cables, loose terminals and burnt parts implies visual inspection but it is not stated.

`mitigated_by`

c6 drafted · lead DC wiring check

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

c7 drafted · lead Cable replacement

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b

`has_event_class`

c8 drafted · lead Fault (device stops or needs intervention)

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
SG250HX-US-UEN-Ver17-202203 sec=9.1 h=7e543aeb5157

review note: support check: partial - Arc fault must be cleared and intervention is needed, implying a fault, but the classification isn't explicitly stated.

`has_production_effect`

c9 drafted · lead Trip (production stops)

Inverter returns to normal only after the arc fault is cleared.

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

review note: support check: partial - Inverter returns to normal after clearing the arc fault implies it stopped, but stopping production is not explicitly stated.

`has_recovery`

c10 drafted · lead Manual reset (operator restarts or acknowledges)

Fault cleared via App or LCD after repair; service if it persists.

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b
Sungrow 36 60CX-US IOM tbl=53.r3 h=da4d057331c3

`applies_to`

c11 drafted · lead Sungrow SG250HX-US

SG250HX-US-UEN-Ver17-202203 tbl=42.r3 h=133cd990681b

Data