High
E2 on Remeha Avanta 28c

Your boiler has detected that it is not heating the water effectively, often caused by trapped air in the system or a temporary lockout that requires a reset.

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.

What the manual says

Manufacturer manual

Error code (Specific technical description found in Chapter 4 error table - requires 3 minute venting cycle after reset)

From this model's manual
Verified against the Remeha Avanta 18v 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 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

E1View →E4View →

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