How to Replace a GFCI Outlet Near a Sink

Water and electricity are a dangerous combination, which is why the Ground Fault Circuit Interrupter (GFCI) is a non-negotiable component of any kitchen or bathroom near a sink. Over time, the internal sensors in these outlets wear out or trip so frequently they fail to reset, leaving your kitchen without power and your home without a critical safety net. Replacing one is a straightforward task, provided you respect the current and follow the standard safety protocols for electrical work. Done well, a GFCI replacement is indistinguishable from a factory-new install, sitting flush against the wall plate with all terminals tightened to manufacturer specifications. Focus on identifying your 'Line' and 'Load' wires before you disconnect anything; this is where most people get tripped up. If you take your time to ensure the ground is secure and the connections are snug, you will have a safe, reliable outlet for years to come.

  1. Kill Power First. Head to your breaker panel and flip the switch corresponding to the kitchen outlets. Confirm the power is dead by plugging a lamp or a voltage tester into the outlet to ensure it does not turn on.
  2. Expose the Wiring. Unscrew the cover plate and the two mounting screws holding the outlet to the electrical box. Pull the device out gently until you see the wires, but do not disconnect them yet.
  3. Map Line and Load. Identify the 'Line' wires, which bring power from the panel, and the 'Load' wires, which carry power to downstream outlets. Mark the Line wires with electrical tape before removing them from the old device.
  4. Free the Wires. Loosen the terminal screws on the old outlet and move the wires aside. Ensure the copper ends are straight and free of nicks; if they are frayed, snip them and re-strip the insulation back about half an inch.
  5. Wire to Terminals. Attach the ground wire to the green screw, then connect the Line wires to the brass and silver screws marked 'Line'. Attach the Load wires to the terminals marked 'Load', keeping colors consistent (black to brass, white to silver).
  6. Verify Safety Function. Gently fold the wires back into the box and secure the GFCI with the mounting screws. Snap the cover plate on, restore power at the breaker, and press the 'Reset' button on the outlet.