A319
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Aircraft Equipment Problem Less Severe; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance
Flight Crew Overcame Equipment Problem; Flight Crew Regained Aircraft Control
Aircraft; Human Factors
I'm not sure what caused the aircraft to start climbing; but wanted to submit a report for tracking purposes in case there is an aircraft specific issue or something related to how the flight management system flies this particular arrival and transition.
A319 Captain reported an uncommanded climb during approach to CLE airport.