Thermostat shows frequent short heating cycles (boiler starts and stops every few minutes)

Safety: No mains work required for thermostat settings; boiler adjustments should be done by a professional.

• Adjust control parameters: In the installer menu, increase the cycle time and/or hysteresis to reduce the number of starts per hour.
• Relocate thermostat: Move the thermostat to a larger, representative room if currently in a small hallway or near a radiator.
• Lower flow temperature: Reduce boiler flow temperature to lengthen run times and reduce cycling.

Persistent short cycling may require a heating engineer to balance the system or adjust boiler parameters.