BoilerFaultCodesWhat the manual says
Manufacturer manualTemporary shutdown fault - resets automatically as soon as the value comes back within the boiler’s normal working range
From this model's manual
Verified against the Ferroli/Ferroli Optimax installation & service manual.
DIY fix possible
Check the pressure gauge on the front of the boiler; it should be between 1 and 1.5 bar.If the pressure is below 1 bar, locate the filling loop (usually a silver flexible hose) under the boiler.Slowly open the valves on the filling loop to add water until the gauge reaches 1.2 bar, then close the valves tightly.
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Related fault codes
All 48 fault codes on the Optimax
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