What does the Atag Error 04 fault code mean?

Your boiler has experienced a power supply interruption or an electrical signal issue, causing it to shut down for safety.

How much does it cost to fix Atag error code Error 04?

Typical repair cost for the Atag Error 04 fault is £0-250 including labour.

Check if there has been a recent power cut or if a fuse has tripped in your home electrical consumer unit.

adjustment or error for voltage interruption

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

Work through these before the call-out.

7 signs repair isn't worth it anymore.

Break-even maths on monthly cover.