What does the Sime AL 16 fault code mean?

Your boiler has failed to ignite because it cannot detect the water heating up as expected, causing it to shut down for safety.

How much does it cost to fix Sime error code AL 16?

Typical repair cost for the Sime AL 16 fault is £120-250 including labour.

Manufacturer manual

HEATING PROBE POSITIONING ERROR SM1/SM2 If the heating probe sensor does not detect a temperature rise within 10 seconds after a burner ignition

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 high 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 16: no call-out fees, no surprise bills.

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