Air Traffic Control Time Certified In Pos 1 (yrs) 8
Situational Awareness; Communication Breakdown
ATC Issue All Types; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Human Factors
Aircraft X was a VFR looking for an IFR clearance into MRY. I attempted to clear him unfortunately the pilot had issues with the read back so I cleared him with a slower pace. That gaffe clued me into the possibility they might not be as proficient as they would like. When I noticed they were below the MVA I canceled their approach clearance and proceeded to climb them.I should have issued a low altitude alert first before canceling the clearance and climbing the aircraft.
NorCal TRACON Controller reported a communication problem with a pilot; and then realized the aircraft was below the MVA.