Medium
E 29 on Chaffoteaux Minima HE System 24

Your boiler is struggling to connect with its wall-mounted temperature control unit, causing it to lose track of how warm your home is.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Room sensor open circuit

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

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Related fault codes

E 30View →

All 37 fault codes on the Minima HE System 24

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

A 01A 03A 36A 37A 39A 40A 41A03E 02E 04E 05E 06E 07E 08E 11E 12E 13E 14E 15E 16E 18E 20E 22E 23E 25E 26E 27E 30E 33E 34E 35E 36E 37E 38E02E04

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