why when i replace de air conditioner resistor work fine for few days then bad? on 2002 Dodge Grand Caravan

i replace three time the a/c resistor because my a/c only work on high but keep doing the same thing please help me!!

Asked by for the 2002 Dodge Grand Caravan
Often times the resistor fails because the connection overheats. If this is the case, replacing the resistor is only half the problem. Carefully inspect the resistor connection for any signs of overheating and if found, you will need to replace the connector as well. Many Chrysler dealerships stock this connector due to its failure frequency.