10-16-2012, 01:36 PM
Contact points have a very thin but very hard surface coating. Eventually they will burn through to the backing metal which will melt and corrode quickly. If the points burn through, the corrosion and carbon build-up can be filed down to expose clean, but softer metal which will fail again fairly quickly. At least the contact points will need to be changed but may only be available with the whole switch assembly. Usually less than $20.
Points burn out much more quickly when the pump "cycles" on and off too often.
Points burn out much more quickly when the pump "cycles" on and off too often.