Warning commissioning
Won't export / nuisance trips after commissioning
Symptom: New install powers up but won't export, or trips intermittently — no obvious hardware fault.
If a fresh install behaves oddly with no clear hardware fault, check the settings first.
1. Grid standard & region
- Safety standard must be AS/NZS 4777.2 with the region that matches the DNSP. The wrong region applies the wrong voltage/frequency limits and causes “won’t export” or F13 trips.
2. Export limit
- If the connection approval specifies an export limit (or zero-export), confirm it’s set correctly — and that the CT/meter it relies on is actually reading (see smart meter wiring).
3. Working mode
- Confirm the working mode (self-consumption / time-of-use / zero-export) and the time periods match what the customer expects. A misconfigured schedule looks like a fault.
4. Then check the grid itself
- Only after the settings are confirmed, measure grid voltage/frequency — long rural runs and weak streets cause genuine over-voltage trips that no setting will fix.
Re-running commission a Deye system in 5 minutes in order catches most of these. Document grid readings before escalating to the DNSP.
