How much does it cost to fix Myson error code 10.1?

Typical repair cost for the Myson 10.1 fault is £120-250 including labour.

10.1 High

Myson 10.1 Fault Code

Q: What does the Myson 10.1 fault code mean?

Your boiler is unable to start the small flame needed to fire up the main heating system, which means you have no heating or hot water.

Also written as 101 — same fault.

The Myson 10.1 fault code means: your boiler is unable to start the small flame needed to fire up the main heating system, which means you have no heating or hot water.. It appears on 2 Myson models in our database.

Technical description: Pilot will not light

Typical repair cost £120-250 (including labour)

Engineer required

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

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Myson models that show the 10.1 fault code

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

Economist WM Repair: £120-250
Economist WM Series Repair: £120-250

Source

Myson 10.1 fault code information on this page is sourced and cross-checked against the official Myson service / installation manuals for each affected model.

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