Sungrow Error Codes
11 diagnostic articles for Sungrow inverters — verified against manufacturer documentation.
Sungrow Inverter Code 202 — PV Hardware Overcurrent Fault
Sungrow code 202 means "PV hardware overcurrent fault": the current coming in from your…
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Sungrow Inverter Code 036 — Why Your Radiator Is Overheating
Code 036 means the inverter's power module — the IGBT assembly bolted to the…
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Sungrow Inverter Code 070 — Is a Defective Fan Stopping Output?
Code 070 means one or more of the inverter's cooling fans are defective —…
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Sungrow Inverter Code 003 — Why Transient Overvoltage Stops Feed-In
Code 003 means your Sungrow inverter detected a brief spike in grid voltage above…
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Sungrow Inverter Code 088 — What the Arc Fault Warning Means
Code 088 is Sungrow's “Arcing warning” — the inverter's arc-fault (AFCI) protection has detected…
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Sungrow Inverter Error Code 038 — Is Your Grid-Side Relay Faulty?
Code 038 means your Sungrow inverter's self-check found a problem with the relay on…
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Sungrow Inverter Code 100 — What the Hardware Overcurrent Fault Means
Code 100 is an inverter overcurrent hardware fault — the current inside your Sungrow…
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Sungrow Inverter Codes 004 and 005 — Grid Undervoltage Explained
Codes 004 and 005 both mean grid undervoltage — the AC voltage from the…
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Sungrow Inverter Code 010 — Islanding Explained for Homeowners
Sungrow fault code 010 means “Islanding” — the inverter has detected that grid power…
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Sungrow Inverter Code 002 — What Does It Mean? A Plain-English Guide
Sungrow fault code 002 means grid overvoltage — the voltage from your electricity network…
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