Low
312 on Baxi Assure

Your boiler is currently running a self-cleaning cycle to remove trapped air from the system and will return to normal operation shortly.

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

De-aeration function active

Shared across the Assure range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait 10 to 15 minutes for the automated cycle to completeEnsure your system pressure is set correctly between 1 and 1.5 barDo not turn the boiler off while the cycle is running

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Related fault codes

E312View →

All 35 fault codes on the Assure

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

0000915202840100103104107110118125128133134135160304321384BatE0E4E15E20E28E110E118E125E128E130E133E160

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