Solar · Error codes · SolaX Power
Red LED flashingSolaX Power · SolaX Pocket WiFi dongle (V3/V4) and SolaX Cloud
Red LED flashing on a SolaX Power SolaX Pocket WiFi dongle and SolaX Cloud: Inverter connection abnormal (dongle cannot talk to inverter)
Short answer
On a SolaX Power inverter, Red LED flashing means: Inverter connection abnormal (dongle cannot talk to inverter). The inverter keeps running.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Inverter connection abnormal (dongle cannot talk to inverter).
Part involved: Wi-Fi/LAN dongle and cloud.
Likely causes:
- Dongle not seated.
- Router/Wi-Fi credentials changed or weak signal.
- Internet/cloud outage.
Is it safe?
| Does the inverter stop? | No |
|---|---|
| Severity | Information only |
| Engineer needed? | No |
The inverter keeps running.
Resetting itself: yes when the connection is restored.
Manual reset: dongle restart / re-pair.
What you can check
- Check the router is on and the Wi-Fi name/password has not changed.
- Restart or re-pair the dongle as the manufacturer guide describes.
- Generation is not affected by a monitoring outage.
What the engineer will check
- Re-configure dongle.
- Check signal strength / use LAN.
- Update dongle firmware.
Who to ask for: Homeowner or installer.
Certification: None for Wi-Fi reconfiguration; installer if inverter comms port faulty.
What you might notice
Sources
- Pocket WiFi V4.0 Installation Manual Version 1.0 ↗ · 1.0 · page PDF p.7 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026