Solar · Error codes · GoodWe Technologies Co., Ltd.
no-displayGoodWe Technologies Co., Ltd. · GoodWe DNS (2.9-6 kW)
no-display on a GoodWe Technologies Co., Ltd. GoodWe DNS: No display
Short answer
On a GoodWe Technologies Co., Ltd. inverter, no-display means: No display. 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: No display.
Part involved: No display.
Likely causes:
- Turn off DC switch and unplug DC connector, measure PV array voltage; reconnect; if PV voltage <250 V check module configuration; if >250 V contact service.
Is it safe?
| Does the inverter stop? | Yes |
|---|---|
| Engineer needed? | Yes |
The inverter stops until the fault clears or is reset.
Resetting itself: unknown.
Manual reset: See checks.
What you can check
- Read the message on the inverter LCD or in the SEMS Portal app and note it for your installer.
- Check if it is night or very dull (the inverter powers from the panels).
- Otherwise contact your installer.
What the engineer will check
- Measure PV array voltage; check configuration; service.
Who to ask for: GoodWe-trained PV installer.
Certification: Qualified electrician (BS 7671; MCS-certified PV installer for work on the PV array/DC side).
What you might notice
Sources
- User Manual Grid-Tied PV Inverter DNS Series 2.9-6kW ↗ · V1.3-2026-09-10 · page 39 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026