Vaillant · Turbomax Plus Boilers
This status indicates that the EcoTEC 65kW boiler is currently set to 'Summer Mode' and therefore will not provide central heating. It will only operate for hot water demands.
Click steps to track your progress.
If central heating is desired, check your boiler's operating mode and switch it to 'Winter' or 'Heating' mode.
Ensure your room thermostat is set to a temperature higher than the current room temperature.
Check your programmer/timer settings for heating schedules.
If you've switched modes and heating still isn't working, restart the boiler.