Bottom red light High

Ferroli Bottom red light Fault Code

Also written as BOTTOMREDLIGHT — same fault.

The Ferroli Bottom red light fault code means: your boiler has stopped working because the water pressure inside the heating system has dropped too low.. It appears on 1 Ferroli model in our database.

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.

Technical description: Low water pressure indicated on the left hand side of the facia
Typical repair cost £80-120 (including labour)

DIY fix possible

Locate the filling loop, which is usually a flexible silver hose or two valves sitting underneath the boiler.Open the valves slowly to allow water into the system until the pressure gauge needle reaches the 1 to 1.5 bar mark.Close both valves tightly to stop the flow of water and check if the red light resets.

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Ferroli models that show the Bottom red light fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ferroli Bottom red light fault code information on this page is sourced and cross-checked against the official Ferroli service / installation manuals for each affected model.

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