INV_NO_UTILITY on a GivEnergy Cloud portal / GivEnergy app and Wi-Fi dongle: No utility (grid) detected - ensure the AC supply is switched on and the AC connections are tight and sound
Short answer
On a GivEnergy inverter, INV_NO_UTILITY means: No utility (grid) detected - ensure the AC supply is switched on and the AC connections are tight and sound. The inverter stops until the fault clears or is reset.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: No utility (grid) detected - ensure the AC supply is switched on and the AC connections are tight and sound.
Part involved: Loss-of-mains / anti-islanding.
Likely causes:
- No utility (grid) detected.
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 - restarts after the reconnection time once mains returns.
Manual reset: no.
What you can check
- Read and note the exact code and time from the inverter display or app (screenshot).
- Check whether there is a power cut (other lights/sockets, DNO 105 service).
- Check the solar/battery AC isolator and the consumer-unit breaker/RCD are ON (do not reset a breaker that trips again immediately).
- GivEnergy's customer guide allows a restart: turn off the DC (solar) and AC isolators, then restart the battery with its side button; or use the app/portal. Contact the installer if the alarm returns.
What the engineer will check
- Check AC isolator, breaker and terminations at the inverter.
- Measure L-N voltage at inverter terminals.
- Check neutral connection.
Who to ask for: PV installer / electrician.
Certification: Electrician competent in grid-connected PV (BS 7671 Section 712; IET Code of Practice for Grid-connected Solar PV), ideally the original MCS-certified PV installer; brand-approved/trained installer to keep manufacturer warranty.
What you might notice
Sources
- List of potential errors: Commissioning portal fault codes and recommendations (UK end-user management) ↗ · page p.1-3 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026