What does the Ariston S 02 fault code mean?

Your boiler is struggling to light its flame after two tries, which means it cannot heat your home or water.

How much does it cost to fix Ariston error code S 02?

Typical repair cost for the Ariston S 02 fault is £100-350 including labour.

Check if other gas appliances like a hob are working to ensure your gas supply is active

Manufacturer manual

Flame not detected on second attempt

Shared across the 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 S 02: no call-out fees, no surprise bills.

Approved partner

Domestic Appliance Guard

Unlimited call-outs, 24/7 helpline, no price-hike promise

Affiliate links. We may earn a commission at no extra cost to you.

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

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.