Low
d.76 on Vaillant ecoTEC plus aquaPLUS

Your boiler is displaying a status code that indicates the current gas configuration settings, which usually means the system is waiting for or confirming the correct fuel type setup.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Gas type set H36 (nat gas) P36 (LPG) E36 (E+gas). Factory setting H36

From this model's manual
Verified against the Vaillant Ecotec Plus Aquaplus installation & service manual, page 40.
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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d.75View →d.77View →

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