What does the Johnson Starley F37 fault code mean?

Your boiler has detected that the water pressure in the system is too low to operate safely and has shut down to protect itself.

How much does it cost to fix Johnson Starley error code F37?

Typical repair cost for the Johnson Starley F37 fault is £0-120 including labour.

Locate the metal braided filling loop underneath or near the boiler

Low water pressure

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.