Kenmore Dishwasher Tripping the Breaker? Causes

Why does my Kenmore dishwasher trip the circuit breaker?#

A Kenmore dishwasher that trips the breaker is telling you an electrical component is either leaking current to ground or drawing too much of it — most often the heating element on Whirlpool-built (665) models. This is the one dishwasher symptom worth treating as a safety issue: knowing the likely fault helps you describe it to a technician, but the repair itself is electrical work.

Kenmore dishwasher breaker trips: ranked causes#

Breakers trip two ways — an overcurrent, when a seized motor or shorted heater pulls more than the circuit's 15A or 20A rating, or a ground fault, when current leaks to the grounded tub and a GFCI breaker catches even a tiny 5mA leak. When the trip happens tells you a lot.

Safety first — this matters: do not repeatedly reset the breaker, because each trip arcs the contacts and weakens it; never swap in a higher-rated breaker to force it to hold, which is a fire hazard on the existing wire; and treat a breaker-tripping appliance as a job for a pro.

How to narrow down a Kenmore dishwasher breaker trip#

You can safely gather clues before the technician arrives.

1. Note exactly when it trips. Holding through fill and drain but tripping once the heater comes on points squarely at the heating element.
2. To confirm the element, cut power, drop the kick panel, disconnect both element wires, and meter between each terminal and the tub frame. A good element reads infinite resistance to ground — any continuity means a ground fault and a new element.
3. Tripping the instant the wash motor starts points at the circulation motor; a winding-to-frame short trips immediately.
4. An immediate trip the moment you reset the breaker, before any cycle, means an always-energized short — usually the control board. Disconnect the board's main power harness; if the breaker then holds, the board is the fault.
5. A trip with no cycle pattern, especially when the door is shut hard, points at chafed door-harness wiring grounding against the frame.

Element and harness work is moderate DIY for the electrically confident; motor and board faults are technician territory.

Is it worth repairing a Kenmore dishwasher that trips the breaker?#

Usually yes — a heating element or a wiring repair is a modest fix and restores safe operation. A circulation motor or control board is the pricier end, so on an older machine weigh it against replacement. Either way, don't keep resetting it in the meantime. For a same-day diagnosis, book a repair.

Kenmore dishwasher tripping the breaker: frequently asked questions#

Is it safe to keep resetting the breaker?#

No. Every trip arcs the breaker's contacts and wears it out, and a weakened breaker may not trip on a more serious fault later. Leave it off and get the fault found.

Why does it only trip once the dishwasher heats up?#

That's the classic heating-element ground fault. As the element's insulation breaks down it leaks current to the grounded tub, and a GFCI breaker trips the moment the heater energizes, 10 to 15 minutes in.

Could it be the house wiring instead of the dishwasher?#

It can be. If the breaker still trips with the dishwasher's control board unplugged, the short is upstream in the house wiring or junction box, not the appliance — that's an electrician's call.