What the manual says
Manufacturer manualEnd of measuring procedure
From this model's manual
Verified against the Atag S 25cr installation & service manual, page 53.
DIY fix possible
Check the boiler display to see if the status has returned to standard operationIf the code persists, try turning the boiler off at the fused spur for 30 seconds and turning it back onMonitor the unit to ensure it resumes heating or hot water production as expected
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