2.7 Low

Boiler Fault Code 2.7

Also written as 27 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 2.7 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler is taking a short rest to prevent itself from turning on and off too quickly, which helps protect the internal parts from unnecessary wear and tear. (As reported on British Gas RD 430i)

Pick your boiler brand for the 2.7 fix

Source

Information for the 2.7 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026