S.30 — Room thermostat blocking heating mode

What does S.30 mean?

The room thermostat is preventing the boiler from entering heating mode. This could be due to the thermostat being set too low or scheduled off.

• Room thermostat set below the current room temperature.
• Room thermostat is in an 'Off' or 'Standby' mode.
• Heating schedule on the thermostat is not active.

Click steps to track your progress.

1. 1

   Check the current setting on your room thermostat and ensure it is set higher than the room temperature.

2. 2

   Verify that your heating schedule is active and not overridden.

3. 3

   If you have an eBUS controller, check its settings for any heat requirement blocks.