High
1-E2 on Worcester Bosch Greenstar 8000 Life Combi

Your boiler's internal computer is reporting an issue with its software version, which may lead to communication problems between the controls and the boiler.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Programmer unit version: Software version of the programmer.

Shared across the Greenstar 8000 Life range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This fault occurs when there is a software mismatch or a data corruption issue between the boiler's internal computer and the display unit. It typically happens because the two components are unable to 'talk' to each other correctly due to a failing circuit board or a loose communication cable. Effectively, the boiler recognizes that the software version installed isn't compatible with the hardware it is trying to control.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Avoid the next call-out bill

A cover plan would handle faults like 1-E2: no call-out fees, no surprise bills.

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Related fault codes

All 151 fault codes on the Greenstar 8000 Life Combi

Seeing a different code? Every code this model can display, in one place.

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