![]() ![]() The float switch is defective. Remove the pump, disconnect power, connect to rated voltage and actuate control switch.The float rod is bent or obstructed by debris. Examine and observe.If it’s attached directly to the pump line, consider installing a separate float tree as it makes pump removal and float operation simpler. The float operation is obstructed or restrained. Add water to the sump and observe it turn on.Usually you can adjust the float or otherwise fix it to float normally, but you may need to replace the float entirely for more serious problems. If the pump uses a float to detect sewage levels, that float can become stuck or damaged, in which case the pump will not run. Contact an authorized service center for repair or replacement.Ī pump attached to a line versus a float tree. An internal motor defect. Remove the pump, disconnect power, connect to rated voltage and actuate the control switch.The water level is not sufficiently high to actuate the control switch. Add water to the sump and observe it turn on.Contact an authorized service center to replace pump bearing. Free and lubricate lower bearing of column pump. The bearings are frozen. Disconnect power, remove the pump from the sump, and observe for freedom of impeller and shaft rotation.Clean the volute and impeller, and remove any blockage. The impeller is blocked or bound. Disconnect power, remove the pump from the sump, and observe for freedom of impeller and shaft rotation.At this point, check that the pump is not being obstructed and can operate as designed otherwise, the pump will need to be repaired or replaced entirely. Sometimes the motor to the lift pump may not be working, which means that electricity is still flowing to the pump but it cannot work. Check that the conduit has not been damaged and therefore the wiring along with it (i.e., if it was hit by a lawn mower). Bad splice connections or a damaged conduit. Check all electrical splice connections for corrosion and other obvious signs that power is not getting to the pump.Your previous check of the voltage at the control panel may have already led you to the conclusion that this may be where your problem lies. Look for loose connections and burnt or melted components. Give the control panel a visual exam for obvious signs of defects and wear. Control panel connections and watertightness.Have an electrician repair the circuit and possibly contact the energy provider. Low voltage at the pump will also cause thermal overload and shutdown. If you find that the power is too high or low at the power panel, you may need to contact the power company. Check that sufficient power is getting through the system by reading the voltage at the pressure switch, control box and at any other components that power is running through. The voltage provided is too low. Voltage needs to be at plus or minus 10% of motor ratings.Have the pump connected to a separate branch circuit. Have an electrician or the power company check the branch circuit voltage. Have the line voltage checked and compare it with the manufacturer's specifications. If the overload trips again, take corrective action. The pump motor overload tripped. Allow the pump to cool for five to 10 minutes, and then reconnect it.Call an electrician to repair the circuit. If the circuit breaker feeds power to other outlets or appliances, have an outlet installed so that the pump has its own breaker. The pump should be plugged into its own circuit breaker (or fuse). The branch circuit is wiring too small to carry the pump load. Have the line voltage checked and compare it with manufacturer's specifications. ![]() Replace the plug, clean the plug prongs with abrasive paper, or have the electrical receptacle replaced. The pump power cord is not properly wired and is making poor contact. If the system uses a piggyback plug-in, check the pump cord cap prongs for tightness and corrosion.Call an electrician to repair the circuit if needed. Note the size recommended by the pump manufacturer and pump nameplate rating. A fuse is blown or circuit breaker is tripped.First check your circuit breaker, and then try to use a multimeter or similar device to check wires in the septic system for damage to see what needs to be replaced. If the pump does not appear to be working at all, does not respond to any tests and is not pumping effluent, there may be a wiring problem. If you are not 100% confident you can perform any of these tests safely, call a professional. When a septic pump will not start, there are three main areas to check for problems: the electrical system, the pump itself and the controls.Įlectricity can be very dangerous, so always use caution when working with electricity and turn off power supply breakers when testing components within the electrical system. Get Pumps articles, news and videos right in your inbox! Sign up now. ![]()
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