Why is my pump running hot and powering off?

  • This maybe caused by insufficient power due to an undersized wire or a poor connection.  Check your owner’s manual for proper wiring.
  • Your local power company might be experiencing a power drop especially during a heat wave.  Restart your pump when the weather cools to confirm that the problem is really in the motor.
  • Your pump has a thermal overload, which will shut the motor off when it gets too hot—it will restart once it has cooled down.  Check the air intake vents of your motor to ensure they are free of debris.  If debris is blocking these vents, it will cause the motor to run hot and possibly shut down.
  • Make sure your pump is located in an area with adequate drainage.  Flooding from rain and other sources could cause a pump to run hot and cut off.

Why is my pump noisy?

  • The motor has an internal cooling fan that can be heard. When installing your pump, it is advised to carefully consider the location; under a bedroom window may not be an ideal location.
  • Vibration from the pump’s feet and the base (where the pump rests) can cause the pump to be noisy.  A piece of old carpet or rubber between the pump’s base and equipment pad might reduce the noise.
  • Ensure the pump is level and the suction lines are not higher then the pump.
  • The bearing(s) might be noisy due to age or high concentrations of chemicals and heat. A leaky pump seal could damage the front motor bearing.  It is very important to quickly repair any leaks around the pump to prevent extensive damage.  It is recommended that you replace the bearings or the entire motor.  Contact us for a repair.
  • Many times a noisy pump can come from cavitation. Cavitation has two possible causes, which are both hydraulically (water flow) related.  The first is that the suction piping is undersized.  If this pipe is undersized, the amount of water the pump requires to operate properly is reduced.  Increasing the pipe size (increase water flow) or dropping the size of the impeller (decrease water flow) can quiet the pump. The second is that there is little or no backpressure on the pressure side of system (water feature pumps are a good example).  Adding a valve or something to increase backpressure is advised.
  • For all of the above, it may be necessary to contact us for assistance.