Step 1 · Disconnect Power and Prepare the Area

The first and most critical step is to ensure your safety by completely disconnecting the sump pump from its power source. Unplug the pump's power cord from the wall outlet, which should be a GFCI outlet. If the pump is hardwired, locate the correct circuit breaker in your home's main electrical panel and switch it to the 'OFF' position. To be absolutely certain the power is off, use a non-contact voltage tester to check the cord or wiring. Once power is confirmed off, remove the lid from the sump pit to gain access.