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error Honeywell
Error Code E01
During Wi-Fi setup, the router lost power. The thermostat cannot complete the Wi-Fi connection process.
? What Causes This
Router lost power during setup or Wi-Fi connection attempt.
✓ How to Fix It
- Ensure your router has power.
- If connecting to a hidden or manually added network, confirm the router has power and is working.
- Restart the setup process.
Source: page 61 of the official manual
From the manual
This error code appears in:
Honeywell RTH6580WF Wi-Fi Smart Thermostat