F7 displayed and thermostat cannot connect to Wi-Fi network

Safety first: No electrical isolation is normally required, but do not open the thermostat casing unless instructed by Ideal.

Steps:

• 1. Check Wi-Fi network: Ensure your router is powered and broadcasting a 2.4 GHz network (many smart thermostats do not support 5 GHz only).
• 2. Verify credentials: On the thermostat or Ideal app, re-enter the Wi-Fi password carefully. Avoid special characters if the thermostat manual warns about them.
• 3. Improve signal strength: Move the router closer or install a Wi-Fi extender. Avoid placing the thermostat on a metal back box that can shield the signal.
• 4. Router settings: Ensure MAC filtering is disabled or the thermostat MAC address is allowed. Use WPA2-PSK security if possible.
• 5. Reboot devices: Restart the router and then the thermostat. Attempt to reconnect via the Ideal app.
• 6. Factory reset network settings: In the thermostat menu, reset network settings and perform the setup again.

If F7 persists and other devices connect fine, the thermostat's Wi-Fi module may be faulty and require replacement.