High
E02 on Chaffoteaux Minima HE System 24

Your boiler has temporarily stopped working because the water pressure inside the system has dropped too low.

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

The pressure of the primary circuit is 0.8 bar or lower, the boiler will lockout after 40 seconds

From this model's manual
Verified against the Chaffoteaux/Chaffoteaux Minima He System 24 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

All 37 fault codes on the Minima HE System 24

Seeing a different code? Every code this model can display, in one place.

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