What does the Halstead 42 fault code mean?

Your boiler has detected that there is not enough water flowing through the system or there is a lack of pressure to operate safely.

How much does it cost to fix Halstead error code 42?

Typical repair cost for the Halstead 42 fault is £100-£280 including labour.

Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.

Water flow failure/ Flame for a short period only - Low water pressure / No flow / Dry run protection

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.

Each noise points to a different fault.

7 signs repair isn't worth it anymore.