What you will see
- Red light with an internal code
- Codes such as SpiCommFault, HwADFault, BusOVP, SwOCPInstant
- "unrecover" in the code name
Why it happens
These are the inverter's self-checks on its own circuits. A single grid spike can trigger one; repeated or permanent codes point to a hardware problem.
These codes apply to SOFAR KTLM, KTLX, HYD and ESI inverters. The ME 3000SP battery converter uses its own numbering, so check its manual list.
Diagram
What to do with internal codes
Recoverable
Switch off, wait five minutes, switch on. Often clears.
Permanent ("unrecover")
ID129–141. Do not keep restarting. Needs service.
What you can check yourself
- Write down the exact code and name
- Restart once using our safe restart guide
- Note if it returns at the same time or after the same event
What not to do
- Do not restart again and again
- Do not open the inverter
When to call us
- Read the full Event List
- Check wiring around the inverter
- Raise a SOFAR warranty case for permanent faults
Warranty cases
If a SOFAR fault keeps returning, we gather logs and the serial number and help you raise a warranty case from Faisalabad or Lahore.
Send us
the code, Event List photos and the inverter serial number