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error Finder
Error Code Er3
Data Received Corrupted — data received from the cloud is corrupted or incomplete.
? What Causes This
Connection failure during communication with the cloud or very disturbed communication line.
✓ How to Fix It
- Perform a force sync by long pressing Finder button.
- Move device closer to router for better signal.
- Check for interference.
- Verify network stability and quality.
Source: page 18 of the official manual
From the manual
This error code appears in:
Finder IB1C91 Bliss Wifi Chrono Thermostat