I'm having trouble with blower resistors burning out and the blower only working on high speed. When I bought the car over 2 years ago the resistor was bad. Replaced with a new one and alls good for 2 years and it goes out again. That was last September, replaced it again, it works fine until yesterday and I only have high speed blower.
It's only a weekend driver so not a lot of use. Are these problematic or should I be looking deeper for a cause?