Hello I will help you with your question,
If the pumps will not run (makes no noise when switch is pushed) the pump may have failed or the fuse may have blown. If this is the case replace the pump and the fuse.
If the pump runs but the fluid dribbles out of the nozzle the nozzle is clogged and may be cleaned with a fine wire or the nozle can be replaced for less than $10
Let m eknow which problem you have and I will do my best to guide you to a solution