Dishwasher trips the circuit breaker

Symptoms

• Breaker flips off shortly after starting a cycle
• Breaker trips at a specific point in the cycle (like drain or heat)
• Burning smell near the outlet or unit
• Other appliances on the same circuit are also affected

Likely causes

• CommonDishwasher sharing a circuit with too many other appliancesIf the circuit isn't dedicated, combined load from other devices can overload it.
• PossibleFailing motor drawing excess currentA wash or drain motor with worn bearings can draw more current than normal and trip the breaker.
• PossibleShort circuit in the heating elementA heating element that's shorted internally can spike current draw.
• PossibleFaulty wiring or connection at the dishwasher's junction boxLoose or damaged wiring can cause intermittent shorts.
• Less commonBad breaker itselfBreakers can wear out and trip prematurely even without a real fault.

What to do

1. Note exactly when in the cycle the breaker trips, since that points to which component is involved.
2. Check if other appliances are on the same circuit and try running the dishwasher alone to rule out overload.
3. Do not repeatedly reset the breaker if you smell burning; leave the dishwasher off and unplugged.
4. Reset the breaker once and run a cycle while watching closely; if it trips again quickly, stop testing.
5. Have an electrician check whether the dishwasher is on its own dedicated circuit as most codes require.
6. If the circuit is dedicated and correctly sized, have an appliance technician test the motor and heating element for a short.

Tools and parts

• None

When to call a pro

If a burning smell is present or the breaker trips repeatedly, stop use and call a licensed electrician or appliance technician right away.

Safety