Solar · Error codes · Tigo Energy
IE008Tigo Energy · Tigo EI Inverter (EU)
IE008 on a Tigo Energy Tigo EI Inverter: AC10M Volt Fault (Grid Voltage Fault). Tigo suggestion: Returns to normal when grid normal
Short answer
On a Tigo Energy inverter, IE008 means: AC10M Volt Fault (Grid Voltage Fault). Tigo suggestion: Returns to normal when grid normal. The inverter stops until the fault clears or is reset.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: AC10M Volt Fault (Grid Voltage Fault). Tigo suggestion: Returns to normal when grid normal.
Likely causes:
- Grid Voltage Fault.
Is it safe?
| Does the inverter stop? | Yes |
|---|---|
| Severity | Fault — clears by itself when the condition goes |
The inverter stops until the fault clears or is reset.
Resetting itself: yes.
Manual reset: unknown.
What you can check
- Read the code on the inverter display / EI app.
- Consult your installer (Tigo: only qualified people should perform the listed actions).
- Check the AC isolator and consumer-unit breaker are on and whether there is a local power cut.
What the engineer will check
- Returns to normal when grid normal.
- Escalate to Tigo Support if persists.
Who to ask for: PV / hybrid inverter.
Certification: MCS PV installer; Tigo-trained installer; electrical work to BS 7671.
What you might notice
Sources
- EI Inverter (EU) - Fault, Warning and Error Codes ↗ · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026