Many basements have a sump pump installed, to pump out excess water. What do you when you notice problems with your pump? These problems can include electrical issues, excessive noise coming from the unit, or that the unit ceases to function completely. If your sump pump makes a load noise the entire time its running, there is something wrong. Turn your unit over and remove the screen with a screwdriver. If the impeller is bent, you have to replace your pump. If your pump doesn’t turn on at all, make sure the unit is plugged in and receiving power. Make sure the breaker didn’t trip in the main panel box. If you have power to the unit, manually operate the float to see if the unit turns on. If the float checks out, your motor is most likely burnt out, and needs replacement. If your unit gets power, but refuses to function, it may mean it has a broken wire inside, or a loose connection. Electrical problems are extremely dangerous, especially around water. Mar-flex recommends replacing the unit instead of doing electrical work on it, because its a serious safety issue.