Unknown
E22 on Main Eco Compact Combi

Main Eco Compact Combi fault code E22

What the manual says

Manufacturer manual

Hot water sensor failure

From this model's manual
Verified against the Main/Main Eco Compact 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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All 71 fault codes on the Eco Compact Combi

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