5 red Low

Ferroli 5 red Fault Code

Also written as 5RED — same fault.

The Ferroli 5 red fault code means: your boiler is currently taking a brief, scheduled pause to protect its internal parts before restarting your heating or hot water.. It appears on 1 Ferroli model in our database.

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.

Technical description: Central Heating waiting time, a max. 3 minutes delay following shut off Boilerstat (63), Clock (62), Roomstat (72) or use of Hot Water

DIY fix possible

Wait for 3 to 5 minutes to see if the boiler restarts automaticallyEnsure your room thermostat or programmer is calling for heatCheck that your boiler pressure is between 1 and 1.5 bar

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Ferroli models that show the 5 red fault code

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

Source

Ferroli 5 red 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