How to Install Dishwasher Timer WP8535372 in a Kenmore Dishwasher

Quick answer: Cut power at the breaker, open the door and remove the inner door panel screws to free the front console, unplug the harness connectors from the old timer, unscrew it, mount WP8535372 in the same bracket, plug everything back in, refit the knob and console, and run a short cycle.

Timer WP8535372 is the electromechanical brain of an older Kenmore dishwasher. A small synchronous motor turns a cam stack inside the timer, and the cams open and close contacts that switch the fill valve, wash motor, drain, heater, and dry fan in sequence. When the motor stalls or a contact burns, the machine gets stuck in one part of the cycle, will not advance, or never starts at all. Kenmore lists this timer for 43 models built on the Whirlpool platform, such as 66517432002 and DU840SWPQ0, and it replaces earlier part numbers 8275308 and 8275309.

This is a door-panel job. Everything you need is behind the front console at the top of the door, so you never touch the tub, pump, or plumbing. The work is straightforward, but there are several harness plugs and some models have a couple of individual wires, so taking a photo before you unplug anything is the single best thing you can do.

See part details and every compatible model: WP8535372

⚠️ Safety First
  • Switch off the dishwasher breaker or unplug the cord under the sink before opening the door console. The timer sits on line voltage.
  • Work with the door open and supported so it does not slam on your fingers when the inner panel comes loose.
  • Wear gloves; the stamped edges of the inner door panel are sharp.
  • Do not let any wire slip through the door and into the tub area where it can be pinched by the hinge.

Tools and Parts You Need

  • Phillips screwdriver
  • Quarter-inch nut driver for door panel screws
  • Flat-blade screwdriver for prying the knob and console clips
  • Phone camera to photograph the wiring
  • Painter's tape and marker for any single wires
  • Multimeter to confirm the old timer motor is dead

Step-by-Step Installation

  1. Disconnect power Flip the breaker off and press the start button to confirm nothing lights up. If the machine is corded, unplug it under the sink.
  2. Free the inner door panel Open the door fully and remove the screws around the edge of the inner door panel. Pull the panel and the console apart just enough to expose the timer, or lay the outer panel down on a towel.
  3. Pull the timer knob On the outside of the console, pull the knob straight off the timer shaft. Some knobs have a small clip or a dial skirt that comes with them.
  4. Photograph and unplug Take a clear photo of the wiring. Press the release tabs and pull the multi-pin harness plugs off the old timer, then tag and remove any single spade wires.
  5. Remove the old timer Take out the two or three screws holding the timer to the console bracket and lift it out. Keep the screws; the new part usually ships without them.
  6. Mount WP8535372 Set the new timer in the bracket with the shaft through the console hole, orient it exactly like the old one, and tighten the screws snug. A crooked timer binds the knob.
  7. Reconnect the harness Push each harness plug onto its matching header until it clicks. Reattach any single wires by your photo and labels. Every plug should feel firm.
  8. Reassemble the door Bring the inner panel and console back together, making sure no wires are trapped, and drive all the screws. Push the knob back onto the shaft.
  9. Test a cycle Restore power, select a short cycle, and listen for the fill, wash, drain, and dry stages. The knob should advance on its own through the cycle.

Fit Checks Before You Call the Job Done

  • The timer shaft is centered in the console hole and the knob turns without rubbing.
  • Every harness plug is seated on the correct header and cannot be wiggled off.
  • No wire is pinched between the inner and outer door panels.
  • The door closes and latches normally with no new gap at the top.
  • The machine fills, washes, drains, and advances by itself during the test cycle.

Common Mistakes to Avoid

Unplugging without a photo The plugs are keyed, but single wires are not. A wire on the wrong terminal can run the heater constantly or skip the drain.

Forcing the knob before the shaft is aligned The plastic shaft on the timer can crack if you hammer the knob on while the timer is crooked in the bracket.

Replacing the timer for a symptom it did not cause A dishwasher that will not fill may have a bad float switch or water valve. A quick test on the old timer motor tells you whether it was really the timer.

Overtightening the mounting screws They thread into plastic. Snug is enough; stripped holes leave the timer loose and the knob floppy.

Troubleshooting After Installation

Timer does not advance during the cycle Check that the harness plug feeding the timer motor is fully seated and that the door switch closes when the door latches.

Nothing happens when the cycle starts Confirm the breaker is on and the door latch is engaging the switch. Then verify no plug was left off during reassembly.

Knob is stiff or will not turn Loosen the mounting screws slightly, center the timer in the bracket, and retighten.

Cycle skips a stage such as drying Compare the wiring against your photo; a single wire on the wrong spade is the usual cause.

Care Tips After the Repair

  • Do not spin the knob backward; always advance it forward to the next cycle position.
  • Wipe the console dry after each use so moisture does not track behind the knob.
  • Run a cycle at least weekly so the timer motor and contacts do not sit idle and corrode.

Compatible Models (Sample)

This part is listed for 43 Kenmore models in our fitment data. Always confirm your exact model number on the appliance's rating plate.

Replaces or is replaced by: 8275308, 8275309

Repair Difficulty and Time

Difficulty: Moderate. Typical time: 30 to 60 minutes.

Frequently Asked Questions

Can I tell if the old timer is bad before ordering?

Yes. With power off, check the timer motor for continuity with a multimeter. An open motor winding, or contacts that look burned inside, points to the timer.

Does WP8535372 fit Whirlpool and Estate models too?

It is listed for 43 models across the shared platform, including Whirlpool 66517432002 and Estate TUD4700SU0. Confirm your model on the door label.

Do I need to reprogram anything?

No. This is a mechanical timer; there is nothing electronic to program.

Why does the new timer not come with screws?

The bracket screws are reused from the old timer, so keep them when you remove the original.

Final Checklist

  • Breaker off and control panel confirmed dead
  • Wiring photographed before any plug was removed
  • Old timer motor tested
  • WP8535372 mounted square in the bracket
  • All harness plugs and single wires reconnected
  • Door panels reassembled without pinched wires
  • Knob refitted and a full short cycle observed

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