What the manual says
Manufacturer manualHeating circuit 2 temperature limiter
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.
DIY fix possible
Check that all radiator valves in the second heating zone are fully openEnsure there are no blockages or trapped air by bleeding the radiators in that zoneCheck your system pressure gauge is between 1.0 and 1.5 barReset the boiler using the power button or reset dial
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Related fault codes
All 151 fault codes on the FELiS FL 50 HM
Seeing a different code? Every code this model can display, in one place.
1020262830323840464750525457606568707172737882838485919899100102103105109110111117118119121122125126127128129130132133146151152153160162164166169170171172173174176177178183195196209214215216217218241242243260270317320321322323324325326327328329330331332333335336337339340341342343344345346347348349350351352353371372373374375376377378382384385386387388391392393419422423424425426427429430431432433550551809810811812813814