Found 3 sitting in the plantroom of a r744 store I commissioned about a year ago, all 3 seemed to have seized, or at least were binding really bad, don't know what the symptoms were though, just saw them lying there after being replaced - they were out of MT cases. Were used in one speed only (2000rpm), I guess that's not a ringing endorsement for them but you usually don't change evap fan motors that quick. Give them a few years and they'll drop like flies over here, the two big chains are really hot and cold with their case cleaning schedules and I can see the little USB ports filling with water easy (even though its a waterproof plug).