Unknown
29, 30 on Atmos Intersystem HE40 C

Atmos Intersystem HE40 C fault code 29, 30

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

What the manual says

Manufacturer manual

Gas valve relay fault

From this model's manual
Verified against the Atmos/Atmos Intersystem He26 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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Boiler cover options

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All 11 fault codes on the Intersystem HE40 C

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

0124567810, 11, 12, 13, 1420, 21, 22, 23, 24

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