Safety first: No wiring work is needed for parameter changes.

Steps to troubleshoot:

1. Adjust hysteresis:
- In the installer menu, increase the hysteresis (temperature difference between ON and OFF) within the recommended range.
2. Change regulation mode:
- Switch from simple on/off to PWM or adaptive mode if supported by your Heatit model.
3. Improve sensor placement:
- Ensure the sensor is not directly above a heating cable or panel.
4. Check load size:
- Very small loads may cause rapid cycling; consider grouping loads or using an external relay.

Thermostat frequently cycles on and off, causing relay clicking and uneven temperature

Possible Causes