Saunier Duval
Open-Window Detection Not Working
Thermostat does not detect open windows or does not activate energy-saving features when windows are opened
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Possible Causes
Feature disabled in settings, Temperature drop threshold not reached, Thermostat installed far from window, Firmware not supporting open-window detection on this model
How to Fix / Troubleshooting
Safety: No electrical work required.
- Enable feature: In the thermostat or app settings, ensure open-window detection is turned on.
- Check sensitivity: Some models allow adjustment of detection sensitivity; increase it if available.
- Location: Ensure the thermostat is in the same room and reasonably close to the window for rapid temperature change detection.
If the model does not support this feature, consider using compatible Saunier Duval window sensors if available.
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Repair Difficulty
Very Easy
1/5
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