Boiler frequently cycles on and off with short run times, causing temperature swings

Safety first: Adjust only user-accessible settings unless you are qualified to change installer parameters.

Steps to check:

• Open radiators: Ensure enough radiators are open to absorb the boiler's output. Do not run the boiler with only one small radiator open.
• Adjust temperature: Lower the flow temperature setpoint slightly to reduce overshoot and cycling.
• Check thermostat location: The room thermostat should not be near heat sources or in direct sunlight. Relocate if necessary.
• Review control mode: If using advanced Kospel controls, enable weather compensation or modulation features if available to smooth operation.

When to call a technician: Persistent short cycling may require system redesign or boiler parameter optimization by a professional.