Nest thermostat and heating system has been working fine until now. Thermostat is set to a schedule and readings match the input. However, despite what the display says the heating remains on! This has only just started as everything was fine until a few days ago. Heating on permanently which is a huge cost in UK at the moment! Have rebooted the thermostat and all connected to Wi-Fi but still heating won’t turn off despite display set to 9•
