My thermostat is fitted properly but is restricting the room temperature – what's wrong?

Check the temperature setpoint for the floor sensor is not set too low and adjust if necessary. Make sure the thermostat isn’t sited where external heat may cause the system to cut out prematurely (such as above a radiator/heater or in direct sunlight). Check the floor sensor is not touching any part of the heat mats. Make sure there are no items placed directly above the area where the floor probe is fitted – this will cause thermal blocking resulting in the symptoms described above.