What does the Ferroli F37 fault code mean?

Your boiler has detected that the water pressure inside the system is too low, so it has temporarily turned itself off to prevent any damage.

How much does it cost to fix Ferroli error code F37?

Typical repair cost for the Ferroli F37 fault is £80-120 including labour.

Locate the filling loop (a silver flexi-hose with one or two valves) underneath your boiler.

Temporary shutdown that is automatically reset as soon as the value causing the fault comes back within the boiler’s normal working range

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Six most common causes of dropping pressure.

Step-by-step using the filling loop.

7 signs repair isn't worth it anymore.