BoilerFaultCodes i7 Low
Boiler Fault Code i7
Also written as I7 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code i7 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 displaying its current target heating temperature rather than an error message, which is normal operation while the system is waiting for a signal to provide heat. (As reported on Worcester Bosch Greenstar Heatslave II)
Pick your boiler brand for the i7 fix
Source
Information for the i7 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 27 April 2026