High
F.13 on Vaillant ecoTEC Plus 610

Your boiler is struggling to read the water temperature in your hot water tank due to a loose wire or a faulty sensor, so it has shut down the heating to prevent issues.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Shortcircuit: Domestichotwatercylinder temperaturesensor. NTCsensordefective,shortcircuitinthecableharness,cable/casing

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

F.12View →

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