Have a 03 town and country van, heater fan quit working a year ago only work on high speed, replaced the resistor behind glove box worked fine after that until a couple months ago, same problem, thought its funny that resistor broke so soon but got another one, worked well again till the next day then same problem. Now it works on all speeds sometimes and sometimes doesn'r work at all. Frustrating. Don't think it's the resistor again, hate to buy a motor or a switch if I am not sure that's what's wrong. Any suggestions.