16 High

Malvern 16 Fault Code

The Malvern 16 fault code means: your boiler has detected an issue with the heat output control system and has shut down to prevent the unit from operating outside of its safe temperature limits.. 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: kW (54592 Btu/h)
Typical repair cost £150-300 (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 16 fault code

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

Source

Malvern 16 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