SolarEdge · A major brand in the UK. 75 codes across 2 product families, each taken from the manufacturer’s manuals. SolarEdge technical support ↗
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Type the code on your display or a word from its meaning. Each code opens its own page with what it means, whether it is safe and what you can check.
75 codes
| Code | Meaning | Stops? | Homeowner check? |
|---|---|---|---|
| 2x1A | Faulty AC Relay: Faulty AC relay / relay feedback - contact SolarEdge support (RMA). | Yes | Yes |
| 2x1D | Phase Balance Error: Line to Neutral voltage is above threshold. | Yes | Yes |
| 2x1E | Phase Balance Error: Line to Neutral voltage is below threshold. | Yes | Yes |
| 2x1F | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 2x2 | Night mode: Night Mode is an inverter status indicating that the input voltage is below 6 V DC. | Yes | Yes |
| 2x2C | No Country Selected: No country selected - select the country. | Yes | Yes |
| 2x9 | AC Current Surge / Ground current surge: Ground current surge. | Yes | Yes |
| 2x10 | Hardware Error: Vref1V or Vref2V > +/-3% - contact support (RMA). | Yes | Yes |
| 2x11 | Temperature Too High: Over temperature. | Partly | Yes |
| 2x18 | Faulty Temp. Sensor: Broken or unconnected temperature sensor. | Yes | Yes |
| 2x19 | Isolation Fault: PV solar array is not properly isolated from ground earth. | Yes | Yes |
| 2x20 | AC Voltage Too Low: Grid voltage is below the country limit. | Yes | Yes |
| 2x21 | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 2x22 | AC Freq Too High: AC frequency too high. | Yes | Yes |
| 2x23 | AC Freq Too Low: AC frequency too low. | Yes | Yes |
| 2x24 | DC Injection: DC injection - contact SolarEdge support. | Yes | Yes |
| 2x25 | Ground Current - RCD: Ground faults may occur due to insufficient insulation to the ground. | Yes | Yes |
| 2x26 | Ground Current - RCD: Ground faults may occur due to insufficient insulation to the ground. | Yes | Yes |
| 2x28 | Islanding: Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time. | Yes | Yes |
| 2x29 | AC Voltage Too Low: Grid voltage is below the country limit. | Yes | Yes |
| 2x90 | Islanding - Passive: Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time. | Yes | Yes |
| 2x95 | Power train error: Power train error - contact support (RMA). | Yes | Yes |
| 2x96 | Arc Fault Detected: Arc detection / arc fault detected (Arc-DSP). | Yes | Yes |
| 2x97 | Arc Fault Detected: Arc detection / arc fault detected (Arc-DSP). | Yes | Yes |
| 2x98 | Arc detector self-test failed: Tx test (previously known as arc test error) - arc detector self-test failed. | Yes | Yes |
| 2xA | Ground Current - RCD: Ground faults may occur due to insufficient insulation to the ground. | Yes | Yes |
| 2xB5 | Relay feedback: Faulty AC relay / relay feedback - contact SolarEdge support (RMA). | Yes | Yes |
| 2xB6 | Temperature Too High: Over temperature. | Partly | Yes |
| 2xC5 | RSD Error: Rapid Shutdown hardware error / rapid shutdown test failed - check safe DC voltage drops below 30 V. | Yes | Yes |
| 2xD | AC Current Surge / Ground current surge: Ground current surge. | Yes | Yes |
| 2xE | AC Voltage Too High: AC voltage surge. | Yes | Yes |
| 2xF | DC Voltage Too High (surge): The SolarEdge system normally eliminates DC overvoltage errors; if the fault persists check strings. | Yes | Yes |
| 3x6A | The device is locked, due to either human intervention, or automatically due to one or more safety features. | Yes | Yes |
| 3x6D | Internal RGM Error: Internal RGM (revenue-grade meter) error - check the Energy Meter CTs wiring. | Partly | Yes |
| 3x6E | Energy Meter Comm. Error: Energy Meter communication error - refer to Energy Meter troubleshooting. | Partly | Yes |
| 3x9A | The device is locked, due to either human intervention, or automatically due to one or more safety features. | Yes | Yes |
| 3x11 | Arc Fault Detected: Arc detection / arc fault detected (Arc-DSP). | Yes | Yes |
| 3xA7 | Country mismatch: Country mismatch - select the country. | Yes | Yes |
| 3xB | No Country Selected: No country selected - select the country. | Yes | Yes |
| 8x1C | AC Voltage Too Low (Line 1): AC voltage too low. | Yes | Yes |
| 8x1F | AC Voltage Too High (Line 1): Grid voltage is above the country limit. | Yes | Yes |
| 8x2B | Ground Current - RCD: Ground faults may occur due to insufficient insulation to the ground. | Yes | Yes |
| 8x2E | AC Freq Too High: AC frequency too high (Line 1). | Yes | Yes |
| 8x10 | Communication Error: Communication error - contact SolarEdge support. | Yes | Yes |
| 8x47 | Temperature Too High: Over temperature. | Partly | Yes |
| 8x58 | Isolation Fault: PV solar array is not properly isolated from ground earth. | Yes | Yes |
| 18x1A | AC Voltage Too High: AC voltage surge. | Yes | Yes |
| 18x1B | AC Voltage Too High: AC voltage surge. | Yes | Yes |
| 18x1C | AC Voltage Too Low: Line voltage is low. | Yes | Yes |
| 18x1F | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 18x3 | Night mode: Night Mode is an inverter status indicating that the input voltage is below 6 V DC. | Yes | Yes |
| 18x3B | I-ACDC: AC overcurrent (I-ACDC L1/L2/L3); if flagged on all three phases at once, most likely a DC-related issue on site. | Yes | Yes |
| 18x3C | I-ACDC: AC overcurrent (I-ACDC L1/L2/L3); if flagged on all three phases at once, most likely a DC-related issue on site. | Yes | Yes |
| 18x7F | IRCDMax: RCD current surge - ground faults may occur due to insufficient insulation to the ground. | Yes | Yes |
| 18x8E | Arc Fault Detected: Arc detection / arc fault detected (Arc-DSP). | Yes | Yes |
| 18x19 | AC Voltage Too High: AC voltage surge. | Yes | Yes |
| 18x20 | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 18x21 | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 18x39 | I-ACDC: AC overcurrent (I-ACDC L1/L2/L3); if flagged on all three phases at once, most likely a DC-related issue on site. | Yes | Yes |
| 18x40 | AC Freq Too High: The frequency measured on L1 is higher than the thresholds. | Yes | Yes |
| 18x43 | AC Freq Too Low: The frequency measured on L1 is lower than the thresholds. | Yes | Yes |
| 18x60 | Islanding Trip1: Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time. | Yes | Yes |
| 18x62 | Islanding Trip2: Grid is down. When AC grid voltage returns the inverter will restart after the reconnection time. | Yes | Yes |
| 18x75 | Temperature Too High: Over temperature. | Partly | Yes |
| 18x76 | Temperature Too Low: Make sure the inverter is installed where ambient temperature is within the datasheet range. | Yes | Yes |
| 18x85 | Faulty Temp. Sensor: Broken or unconnected temperature sensor. | Yes | Yes |
| 18x86 | Isolation Fault: PV solar array is not properly isolated from ground earth. | Yes | Yes |
| 18xA9 | RCD Error: RCD sensor error - contact SolarEdge support. | Yes | Yes |
| 18xAB | Over voltage Vin: Over voltage in DC input of the inverter. Check the strings' voltage. | Yes | Yes |
| 18xB5 | DC/AC in-stage overvoltage: DC/AC in-stage overvoltage - contact support, RMA related. | Yes | Yes |
| 18xB7 | DC/AC in-stage overvoltage: DC/AC in-stage overvoltage - contact support, RMA related. | Yes | Yes |
| 18xC7 | RSD Error: Rapid Shutdown hardware error / rapid shutdown test failed - check safe DC voltage drops below 30 V. | Yes | Yes |
| 18xD8 | AC Voltage Too High: Grid voltage is above the country limit. | Yes | Yes |
| 18xDB | AC Voltage Too Low: Grid voltage is below the country limit. | Yes | Yes |
| WARNING 1 | Fan Failure - contact support. | No | Yes |