High
S.54 on Vaillant Combi Compact 282EB

Your boiler has temporarily paused operation because it has detected a lack of water circulation or a rapid rise in temperature that could lead to overheating.

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

Boiler is in waiting period of operation, blocking function as a result

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.22View →F.24View →S.53View →

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