How much does it cost to fix Atag error code E19?

Typical repair cost for the Atag E19 fault is £150-300 including labour.

E19 High

Atag E19 Fault Code

Q: What does the Atag E19 fault code mean?

Your boiler has detected that the water returning from your radiators is dangerously hot, causing the system to shut down to prevent damage.

The Atag E19 fault code means: your boiler has detected that the water returning from your radiators is dangerously hot, causing the system to shut down to prevent damage.. It appears on 1 Atag model in our database.

Technical description: High return temperature (T2 > 95°C)

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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Atag models that show the E19 fault code

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

Premier Repair: £150-300

Source

Atag E19 fault code information on this page is sourced and cross-checked against the official Atag service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026