Does a dishwasher receptacle need GFCI protection?

Yes, in a dwelling unit. NEC 2023 210.8(A)(5) requires GFCI protection for dishwashers in dwelling units, and this is a change many techs still have not internalized because older code cycles did not call it out by name. There is no exception written into the current text for nuisance tripping, so a dishwasher that trips the GFCI is treated as a problem with the appliance, the wiring, or the device, not a reason to skip protection.

Why dishwashers trip GFCIs

Real ground faults happen with dishwashers more than most kitchen appliances because the motor and heating element sit in a wet, sometimes leaking environment, and insulation on internal wiring degrades with heat cycling over years of use. A trip on a new install is usually one of three things: a genuine internal fault in an aging or defective unit, neutral and ground conductors touching somewhere in the circuit, or a GFCI device that is marginal and reacting to normal leakage current that is still under the trip threshold but close to it.

Troubleshooting the trip

Isolate the dishwasher from the circuit and test the GFCI alone to rule out the device itself. If the device holds clean, check for shared neutral issues or damaged conductor insulation in the whip connecting to the dishwasher junction box. If the dishwasher itself is the fault when tested in isolation, it needs service or replacement, GFCI protection is not something to work around by feeding it from an unprotected circuit.

Field takeaway

Dishwashers get GFCI protection under 210.8(A)(5) with no built in exception for tripping. Treat a trip as a diagnostic clue pointing at the appliance, the wiring, or the device, not a reason to remove protection.