Boiler Fault Code 3 2.

Also written as 32 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code 3 2. appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected a technical fault with the sensor that monitors water returning to the unit, causing the system to shut down as a safety precaution. (As reported on Remeha Quinta Ace 25)