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Error code · Dishwasher

Whirlpool Dishwasher Code F6E3: Excessive Suds in the Tub

Foam in the bottom of a Whirlpool built-in dishwasher, such as the WDF520PADM, is what F6E3 reports. The suds sensing system detects foam and may stop the dishwasher from filling or running properly. It is often…

Low risk · DIY check OK
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Code
F6E3
Appliance
Dishwasher
Brand
Whirlpool
Warranty
30-day workmanship

What F6E3 means

Foam in the bottom of a Whirlpool built-in dishwasher, such as the WDF520PADM, is what F6E3 reports. The suds sensing system detects foam and may stop the dishwasher from filling or running properly. It is often caused by the wrong soap, such as laundry detergent, hand soap, or dish detergent made for washing by hand, or by too much detergent. Owners see the code, and the cycle halts or refuses to start.

Common causes of F6E3

  • Wrong type of soap used in the dishwasher
  • Too much detergent or leftover rinse aid
  • Foam still sitting in the tub from the last cycle
  • Suds-detection reading if the tub is clean and F6E3 persists
✓ One safe check you can try

1. Look at the bottom of the tub for foam or suds. 2. Remove the suds by hand with a cloth or cup, then wipe the area. 3. Use only detergent made for automatic dishwashers, and measure it. 4. Run a clean wash cycle with no dishes and no detergent, then run a normal load. 5. If F6E3 comes back on a clean tub, call us.

! Why to stop there
  • If the tub is clean and the code returns, the suds sensing itself needs a look
  • We cannot tell from the display whether the foam was real or the reading was wrong
  • We check the sensing and the water level behavior, with a written price before any repair
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Dishwasher codes

SaniLightWhirlpool Dishwasher Sanitize Light Blinking Because the Water Was Not Hot Enough Sanitize Light FlashingOlder Whirlpool Built-in Dishwasher, Sanitize Light Flashing: Temperature Missed Start/ResumeWhirlpool Portable Dishwasher Start/Resume Light Flashing: Cycle Interrupted F6E4Whirlpool Built-In Dishwasher F6E4: Float Switch and Leveling F7E2Whirlpool Dishwasher Code F7E2: Wash Motor Not Responding F8E1Whirlpool Dishwasher F8E1 or H20: Not Detecting Water F8E2Whirlpool Built-In Dishwasher F8E2 and the Fill Valve Circuit F8E4Whirlpool Dishwasher F8E4 Error on a New Install: Fill and Float Checks
F6E3F6E3 questions
Can I use dish soap if I run out of dishwasher detergent?

No. Hand-wash soap and laundry detergent foam heavily, which is exactly what raises F6E3. Use detergent made for automatic dishwashers, and measure it rather than adding extra.

How do I clear the suds?

Remove the foam by hand with a cloth, wipe the tub, and run an empty cycle with nothing added. Repeat if foam appears again. Do not pour more soap in to rinse it away.

When does F6E3 need a technician?

If the tub is clean, the right detergent is in use, and F6E3 still shows, the suds sensing or the control reading may be off. We test that and quote in writing first.

Book a visit

Still unsure about F6E3?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107