Low
E11 on Warmflow Agentis Internal

Your boiler has detected that a temperature sensor inside the internal water tank has moved out of its correct position or is failing to provide a reading.

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.

What the manual says

Manufacturer manual

Tank Limit — displaced tank NTC temperature sensor probe (logged only, not shown on LCD); consult Service Engineer

From this model's manual
Verified against the Warmflow Agentis Internal installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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Related fault codes

E10View →E12View →

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