We have a newer 211 2 Stop that's been getting a (2711) "Stall Down" fault every couple of days at the 2nd Floor. Verified that the rupture valve is not setting. Valve seems to be good, never any heat issues. Once reset the car runs fine again for a couple of days. Other associated faults are: 2005, 2102, 2644. Anyone have any ideas as what could be causing this shut down.

Thanks