Homeowners who experience problems with their water pump should call a qualified water system contractor or a plumber. Water pump companies, such as Kocher's, provide their customers with a list of technicians they can call when something goes wrong with the appliance.
In many cases, a water pump comes with a warranty of at least 5 years. This means that the company that manufactured the water pump has to send over one of their technicians to solve the problem, or, alternatively, pay for the technician hired by the homeowner. If the water pump is still covered by warranty, homeowners should first call the number provided by the manufacturer for emergencies.