Ad Space — Top Banner

Error 119

SolarEdge Solar Inverter

Severity:

Source: OnlyErrorCodes.com — Every error code. One place.

SolarEdge Error 119 — Voltage Sensor Fault

What Does This Error Mean?

Error 119 on a SolarEdge inverter means an internal voltage sensor has failed self-test. This is a hardware fault. The inverter blocks production for safety. Contact your installer for warranty service — typical resolution is a replacement inverter under SolarEdge's 12-year warranty.

Affected Models

  • SolarEdge SE3000H
  • SolarEdge SE7600H
  • SolarEdge SE10000H
  • SolarEdge SE11400H-US
  • SolarEdge HD-Wave

Common Causes

  • Failed voltage measurement IC on the main board
  • Power surge damage from lightning or grid event
  • Aged inverter component (more common after 8+ years)
  • Internal moisture ingress (rare on indoor installations)
  • Manufacturing defect (rare)

How to Fix It

  1. Power-cycle the inverter once.

    Switch AC and DC isolators OFF for 5 minutes. Switch back ON. Some Error 119 events from a transient sensor read clear after a cold restart. If Error 119 returns immediately, do not repeat.

  2. Note recent power events.

    Error 119 the morning after a thunderstorm is often surge damage. Mention this to the installer — surge claims may be covered by home insurance even if not by SolarEdge warranty.

  3. Find your installation date and serial number.

    Your installer will need the inverter serial number (on a sticker, also visible in SetApp) and installation date for warranty validation. SolarEdge inverters carry 12 years standard.

  4. Contact installer for SolarEdge case.

    The installer logs a service case with SolarEdge. SolarEdge typically ships a replacement inverter to the installer; the installer schedules a swap visit. End-to-end timeline: 1–4 weeks.

  5. Plan for production loss.

    Inverter downtime loses 100–500 kWh per month depending on system size. Some installers offer loan inverters for long delays — ask if this is available.

When to Call a Professional

Error 119 is not user-resolvable. The inverter is sealed and is replaced rather than repaired. Contact your installer or SolarEdge support.

Frequently Asked Questions

Is Error 119 covered under warranty?

Yes — internal hardware faults are covered under SolarEdge's standard 12-year warranty. The inverter is replaced at no parts cost. Installer labour typically costs USD 150–350 for the swap. Some installers waive labour for warranty work; some charge.

How can I prevent Error 119 from happening again?

After warranty replacement, ask your installer to add a Type 2 surge protector at the AC and DC inputs. Cost USD 100–200 added during the install visit. This protects against grid spikes and indirect lightning, which are the leading causes of Error 119.