High
Automatic Shutdown on Ideal Mexico HE

Your boiler has switched off because water produced during the heating process cannot drain away properly, likely due to a blockage in the pipe leading outside.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Blockage of the condensate drain, caused by debris or freezing.

Engineer required

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

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →

Frozen condensate pipe

Winter cause of ignition lockouts.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →