Kenmore 66515791791 undercounter dishwasher Parts

If your Kenmore dishwasher model 66515791791 will not start or stops mid-cycle, a bad door switch is likely when the door is fully closed and latched but the unit still acts like the door is open. Confirm by checking the latch first, then testing the switch for continuity per the 66515791791 owner's manual.

Quick signs the door switch is failing

• Dishwasher does not run unless you push or lift on the door
• Cycle starts, then stops when the door is bumped
• No response when you press Start (with power available)
• Door feels latched, but the machine behaves like it is not
• Intermittent operation that comes and goes

How we test a dishwasher door switch (basic continuity check)

1. Disconnect power at the breaker (dishwashers are a shock hazard).
2. Open the inner door panel enough to access the latch and switch area.
3. Remove the switch wires (take a photo first).
4. Set a multimeter to ohms/continuity.
5. With the switch actuated (pressed as it would be when the door latches), the meter should show continuity (typically near 0 ohms or a beep).
6. With the switch released, the meter should show no continuity.

If the readings do not change when you actuate the switch, the switch is bad.

Rule out common look-alikes first

Before replacing parts, we check these items because they cause the same “won’t start” symptom:

What to check	What you are looking for	Why it matters
Door closure	Door fully closed and securely latched	The dishwasher will not run if it thinks the door is open
Power supply	Tripped breaker or blown fuse	The control cannot run without proper power
Overfill protector (float)	Float moves up and down freely	A stuck float can prevent filling and stop operation

Why it matters

The door switch is a safety interlock. If it is not closing electrically, the dishwasher can stop to prevent operation with the door unlatched.

Last updated: January 2026

Most Kenmore dishwashers, including model 66515791791, typically last 10 to 13 years with normal home use and basic maintenance. How long yours lasts depends most on water quality, loading habits, and keeping the wash system and seals clean per the 66515791791 owner's manual.

Typical lifespan and what affects it

A dishwasher’s service life is mainly driven by heat, detergent, and moving water wearing parts over time.

• Hard water and heavy detergent use can shorten component life
• Frequent heavy cycles increase wear on the motor, pump, and spray arms
• Leaks or moisture intrusion can damage wiring and controls
• Poor draining strains the pump and can leave standing water
• Regular cleaning helps prevent odor, clogs, and poor wash performance

Quick “is it near end of life?” checklist

If you see multiple issues at once, repair costs can add up quickly.

• Repeated leaking around the door (often tied to the door gasket)
• Poor filling or slow fill (water inlet problems)
• Dishes stay dirty even after cleaning filters and spray arms
• Burning smell, not drying, or weak heating performance
• Loud grinding or rattling during wash or drain

Common wear items vs. major repairs

What you’re dealing with	Typical cause	Example part for 66515791791
Water on floor at door	Worn or deformed door seal	Dishwasher door seal WPW10509257
Won’t fill or fills slowly	Failing inlet valve or debris in valve screen	Inlet valve W10844024
Standing water after cycle	Drain restriction or drain hose issue	Dishwasher drain hose WP3374077

Why it matters

Knowing the typical 10 to 13 year life expectancy helps you decide whether to invest in a repair (like a seal or inlet valve) or plan for replacement if multiple major symptoms show up together.

Last updated: January 2026

On Kenmore dishwasher model 66515791791, the model number is printed on the serial plate beneath the top handle. Open the dishwasher door and look along the inner door area near the top to find the model and serial number label (often on the right side).

Where to look (quick checklist)

• Open the dishwasher door fully.
• Look under the top handle area for the serial plate.
• Check the right side of the inner door for the model and serial number label.
• Wipe the label clean; soap film can make numbers hard to read.
• Write down the full model number and serial number exactly as shown.

What to record (and why)

When we help you match parts or diagrams, having the complete information prevents ordering the wrong item.

Label item	Example for your unit	Used for
Model number	66515791791	Correct part fit and diagrams
Serial number	(varies)	Version-specific changes
Part description	e.g., door latch, inlet valve	Confirming the right component

Why it matters

Kenmore dishwashers can look similar across model series (for example, 15791 vs. 16791). Using the exact model number from the label ensures parts like the dishwasher door latch WP3380854 or inlet valve W10844024 match your specific build.

For a diagram of where key components are located, use the 66515791791 owner's manual.

Last updated: March 2026