High
324 on ECA FELiS FL 50 HM

Your boiler's electronic control system is confused because it is receiving conflicting or identical signals from two different sensors, causing it to shut down for safety.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

BX input, same sensor

Shared across the FELiS FL 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.

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

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All 151 fault codes on the FELiS FL 50 HM

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

1020262830323840464750525457606568707172737882838485919899100102103105109110111117118119121122125126127128129130132133146151152153160162164166169170171172173174176177178179183195196209214215216217218241242243260270317320321322323325326327328329330331332333335336337339340341342343344345346347348349350351352353371372373374375376377378382384385386387388391392393419422423424425426427429430431432433550551809810811812813814

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