Thermostat short cycles the heating system: boiler turns on and off frequently in short intervals

Safety first: No need to open the thermostat for settings changes.

Steps to troubleshoot:

• Enter advanced settings and increase the temperature differential/hysteresis (e.g., from 0.2°C to 0.5–1.0°C) to reduce cycling.
• Adjust cycle rate or minimum on/off time parameters if available, matching the boiler manufacturer’s recommendations.
• Relocate the thermostat away from doors, windows, or vents that cause rapid temperature swings.
• For floor heating, ensure the floor sensor is not directly above a heating cable loop; if it is, consider relocating the sensor if conduit is available.