What the manual says
Manufacturer manualAfter any error; the 3 minute venting cycle will run first before starting the boiler
From this model's manual
Verified against the Remeha/Remeha Avanta installation & service manual.
DIY fix possible
Wait for the three-minute venting cycle to finish automaticallyCheck that your radiators do not need bleeding if air is frequently getting into the systemEnsure your system pressure is sitting at the correct level, usually between 1 and 1.5 bar
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All 22 fault codes on the Selecta
Seeing a different code? Every code this model can display, in one place.