I've never seen any error, fault, warning or status code data for my clone PIP4048HS reported in Solar Assistant, so I'd be surprised if any was going to available to be passed through to Home Assistant (and I have no such entities available there either).
But it's an interesting thought as having fault codes in HA would enable some automations/actions, or at least a remote warning to be triggered.
I vaguely recall WatchPower having a fault code recording mode, which suggests it's possible, just not available in SA.