Room too hot; thermostat setpoint is low but radiators or floor remain very warm.

Safety first: Radiators and pipes may be hot; avoid prolonged contact.

• Verify setpoint and schedule: Ensure no temporary override or party mode is active raising the temperature.
• Lower heating curve: Reduce the heating curve slope or parallel shift slightly and observe the effect over a day.
• Check thermostat location: Move heat sources (lamps, electronics) away from the thermostat and avoid direct sunlight.
• Inspect valves: Ensure thermostatic radiator valves and zone valves can close properly and are not stuck open.