My ac went out so i had an hvac guy come fix it. He said it was the capacitor and he didnt have the right one so he put the next size down on it temporarily. Tested everything all pressures were good freon good ect.. He left about 2 hrs after he left the compressor took a crap.. He sent another guy out the next day after me telling in i think the compressor went out to put the right capacitor on it. (Too late now) would that wrong capacitor cause the compresser to take a crap? Also note the unit is 18 years old but ran great before this