10 High

Malvern 10 Fault Code

The Malvern 10 fault code means: your boiler is struggling to accurately read its own operating temperature due to a sensor measurement error.. It appears on 1 Malvern model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: 33118 Ohms
Typical repair cost £120-200 (including labour)

Engineer required

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

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Malvern models that show the 10 fault code

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

Source

Malvern 10 fault code information on this page is sourced and cross-checked against the official Malvern service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026