1999 Buick Regal. Had to replace blower twice in 3 years due to water gathering on 1999 Buick Regal

Floods out blower. Plus module shorts out.

Asked by for the 1999 Buick Regal
A/C drain stopped up??
Had it "fixed" three times. Replaced blower and resister three times. Just ordered a new heater module. I get gallons of water on passanger floor.