Low
1-E2 on Worcester Bosch Greenstar 8000 Life

Your boiler is displaying a status check of its internal control software, which is usually a temporary communication glitch rather than a mechanical failure.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Programmer unit version Software version of the programmer.

DIY fix possible

Switch off the power supply to the boiler at the electrical spur or fuse boxWait for 60 seconds to allow the internal electronics to fully resetSwitch the power back on and check if the display returns to normal

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful