info Worcester

Status ]

Summer mode indicator — heating is switched off, DHW supply and power for heating controls remain active.

? What Causes This

Summer mode has been activated by the user.

What This Means

  1. To exit summer mode:
  2. Press the ( key.
  3. Press the down arrow key until the ] symbol disappears.
  4. Press OK to save.

Source: page 11 of the official manual

From the manual

Manual page 11 — Worcester error ]

This error code appears in:

Worcester Greenstar 1000 GR1000W 30C NG Boiler