Pumptol Switch

[kpmac]

The pumptol relay switch stays engaged and the pump continues to run for a long long time. If I tap it it kicks out and stops the pump. I've used a shop vac and canned air to get dust/dirt etc. out of there in the past but it doesn't seem to work this time.

Do I need to get a new switch? Please advise.

[Peter Griffin]

The tube or pipe that it is attached to is probably plugged.