What does the Sime AL 01 fault code mean?

Your boiler has detected an issue with its ventilation or exhaust system, causing it to automatically shut down to prevent unsafe operation.

How much does it cost to fix Sime error code AL 01?

Typical repair cost for the Sime AL 01 fault is £150-300 including labour.

Manufacturer manual

The smoke stat has intervened; Fan failure; The air pressure switch has intervened; The condensate level sensor has inte

Shared across the Ecomfort Plus range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

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

Boiler cover options

A cover plan would handle faults like AL 01: no call-out fees, no surprise bills.

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Seeing a different code? Every code this model can display, in one place.