What to do if my Uponor Thermostat shows error E1?
- BBrianna BaileyAug 1, 2025
If your Uponor Thermostat displays the E1 error, it indicates that the remote floor probe is either not connected, incorrectly wired, or faulty. Ensure the probe is properly connected and correctly wired. If the issue persists, the probe may be faulty.