How much does it cost to fix Ariston error code A06?

Typical repair cost for the Ariston A06 fault is £200-450 including labour.

A06 High

Ariston A06 Fault Code

Q: What does the Ariston A06 fault code mean?

Your boiler is failing to move the water around the system correctly, which means your heating and hot water will not work until the issue is cleared.

The Ariston A06 fault code means: your boiler is failing to move the water around the system correctly, which means your heating and hot water will not work until the issue is cleared.. It appears on 6 Ariston models in our database.

Technical description: Circulation Pump

Typical repair cost £200-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ariston models that show the A06 fault code

Click a model for the full fault code list and model-specific repair notes.

Challenger 80E Repair: £200-450
E-Combi One Repair: £200-450
E-Combi One 30 Repair: £200-450
Euro Combi 30 MFFI Repair: £220-£450
Euro Prisma 24 Repair: £220-£380
Microsystem 15 Repair: £200-450

Source

Ariston A06 fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026