IE017 on a Tigo Energy Tigo EI Inverter: EPS(Off-grid) Overload Fault (EPS(Off-Grid) Over Load Fault). Tigo suggestion: Switch off high-power devices on EPS panel and press ESC to restart
Short answer
On a Tigo Energy inverter, IE017 means: EPS(Off-grid) Overload Fault (EPS(Off-Grid) Over Load Fault). Tigo suggestion: Switch off high-power devices on EPS panel and press ESC to restart. The inverter stops until the fault clears or is reset. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: EPS(Off-grid) Overload Fault (EPS(Off-Grid) Over Load Fault). Tigo suggestion: Switch off high-power devices on EPS panel and press ESC to restart.
Likely causes:
- EPS(Off-Grid) Over Load Fault.
Is it safe?
| Does the inverter stop? | Yes |
|---|---|
| Severity | Fault — needs a manual reset once the cause is fixed |
| Engineer needed? | Yes |
The inverter stops until the fault clears or is reset.
Resetting itself: unknown.
Manual reset: ESC key restart where stated.
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).
- Switch off high-power appliances.
What the engineer will check
- Switch off high-power devices on EPS panel and press ESC to restart.
- 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