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Kenmore · Dishwasher

Kenmore Dishwasher F11 Error Code

Touchpad cannot talk to main control

What this error means

F11 means the touchpad user interface lost communication with the main control board inside the door. The display may freeze or alternate between F11 and blank segments.

How F11 is detected

When F11 appears on a Kenmore dishwasher, the control board has confirmed that water did not leave the machine within the programmed drain window. On Kenmore 665.13223K901, Kenmore 665.17789K801, and similar variants, the drain pump runs for a fixed interval—often three to seven minutes on washers and dishwashers—while a pressure switch or turbidity sensor verifies the tub or sump is empty. If water remains, the cycle stops to prevent spin with a full tub or overflow on the next fill.

Most F11 calls are resolved without parts: flip the breaker off and remove inner door screws to access the harness. Restricted drain paths mimic pump failure because the impeller spins against a blocked hose or filter. Document whether the pump hums audibly during the drain step; a humming pump with no water movement points to a clogged filter or kinked hose, while silence may indicate a failed pump motor or loose wiring at the harness.

After clearing blockages, run a short cycle and listen at the drain hose for steady water flow. If F11 returns on the next load with a clean filter and straight hose, measure resistance at the pump motor connector per the service manual for your model before ordering a replacement pump assembly.

Common causes

  • Loose ribbon cable between UI and main control at P1C
  • Corroded connector pins from steam through the door vent
  • Failed user interface board
  • Main control UI port no longer providing 5 VDC

Step-by-step fixes

  1. 1Flip the breaker off and remove inner door screws to access the harness
  2. 2Unplug and reseat the UI ribbon at the main control P1C connector
  3. 3Clean green corrosion on pins with electrical contact cleaner
  4. 4Restore power after one minute off—immediate F11 means plan board replacement

When to call a technician

A technician can measure 5 VDC at P1C before you buy a UI or main board for F11.

Affected models

  • Kenmore 665.13223K901
  • Kenmore 665.17789K801
  • Kenmore 665.14703N510

Prevention & maintenance

  • Clean drain filters and hose terminations monthly on high-use dishwashers to prevent F11 from lint and food debris buildup.
  • Record when F11 appears in the cycle and whether it clears after a 60-second power reset on your Kenmore dishwasher—that detail speeds diagnosis if you call service.
  • Keep the model and serial number from the rating plate when ordering parts for F11; Kenmore uses multiple revisions with different harness lengths and board firmware.
  • Photograph wiring connector orientation before disconnecting any component while troubleshooting F11; reversed plugs on pumps and valves cause immediate repeat faults.
Hard1 hour

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