What does the Ferroli F37 fault code mean?

Your boiler has detected that the water pressure inside the system is too low for it to operate safely.

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

Typical repair cost for the Ferroli F37 fault is £60-160 including labour.

Check the pressure gauge on the front of the boiler or under the casing.

Manufacturer manual

Error with system water pressure, possible pressure too low or water pressure switch is damaged

Shared across the range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

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

Boiler cover options

A cover plan would handle faults like F37: no call-out fees, no surprise bills.

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Six most common causes of dropping pressure.

Step-by-step using the filling loop.

7 signs repair isn't worth it anymore.