im following the guide to build the model of the system, but i find when i click the Submodel mode, some components turn blue or other colours. Why dose it happen? thank you all
that's a well known side effect in Amesim.
Go to Modeling/Category Path list... menu
Then reorder your libraries and make sure that libthh (thermal hydraulic) is above libhr (hydraulic resistance)and libhyd (hydraulic).
This way when you build an hydraulic model it will pick up the right categories of icons by default.
In order to correct/reset your model, go in Sketch mode, select all (CTRL+A), right click an item of the selection and select "Remove submodel".
Next time you go in Submodel mode, all should be fine.