As this post is some time ago, I hope you have it working by now. I would be interested in what defines/defined “not working properly”.
In any case, if you go to menu on the remote you will find a menu option to view all errors, assuming this issue is triggering error messages.
Just finished my own diy install of 16kW Samsung heat pump, very happy with it, no issues in the first 6 days, will see if I missed anything fundamental. With our old house (we are used to keeping the room temperatures lower even on the old oil boiler) I am averaging cop between 4 and 5.2 (though not when heating the hot water cylinder)