What does the Ideal LA/HA fault code mean?

Your boiler has become too hot and has shut itself down as a safety precaution to prevent internal damage.

How much does it cost to fix Ideal error code LA/HA?

Typical repair cost for the Ideal LA/HA fault is £120-350 including labour.

Check that all radiator valves are fully open to allow water to circulate.

Overheat (With V9 Primary Control PCB, will display 3 horizontal lines upon reset and not refire until temperature drops below 50oC)

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

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.

Safety-critical — turn off, read this.