Thermostat shows E17 and indicates sensor configuration error; system may not respect floor limits or room control mode.

Safety first: Configuration changes are low risk, but disconnect power before altering any sensor wiring.

Steps to diagnose and fix:

• 1. Review sensor settings: In the thermostat menu, check the selected sensor type and control mode (room only, floor only, or room with floor limit). Ensure this matches your installation.
• 2. Match sensor type: Confirm the installed Danfoss sensor type (e.g., 10k NTC). Adjust the thermostat setting to match the actual sensor.
• 3. Disable unused sensors: If no floor sensor is installed, disable floor sensor monitoring in the configuration to prevent E17.
• 4. Check wiring: Ensure that any connected external or floor sensors are wired to the correct terminals and not shorted or open.
• 5. Factory reset if needed: If settings appear corrupted, perform a factory reset and reconfigure the thermostat according to the Danfoss installation guide.

When to call a professional: If you are unsure which sensors are installed or how the system was designed, consult the original installer.