Low
S.96 on Vaillant ecoTEC Plus 826

Your boiler is currently performing a brief automatic safety test on its internal sensors and will resume normal operation once this check is complete.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Returnsensortestrunning,heatingdemandsareblocked.

Engineer required

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

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Related fault codes

S.97View →S.98View →

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