Low
2.0 on Worcester Bosch Greenstar R29 40 HE

Your boiler is operating normally and there is no fault present.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Normal mode / Operating mode setting

Shared across the Greenstar R 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.

DIY fix possible

No action is required as your boiler is functioning as intended.

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All 22 fault codes on the Greenstar R29 40 HE

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

2.42.52.63.35.05.29.3b1C1d3E2E9EAF0F7FAFdP1P1, P2, P3, P1...P2P3

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