FixByModel
F8E4

Whirlpool F8E4: Overflow/leak — water in the base tray float switch

The float switch in the drip tray at the base of the dishwasher sensed water, so the unit shuts down and runs the drain pump to protect against flooding. Controls stay locked until the tray dries out.

DIY fix

By the FixByModel editorial team · Verified 2026-09 · Researched against manufacturer support & repair references (below)

Most likely causes

  1. Loose inlet or drain hose connection or clamp
  2. Excess suds from dish soap or too much detergent/rinse aid
  3. Seeping water inlet valve
  4. Worn door gasket or bottom wiper seal
  5. Mis-seated sump or filter assembly
  6. Faulty or disconnected base float switch
Where water collects
1Door gasket
2Hoses & sump
3Base tray
4Float switch

Schematic illustration of a typical dishwasher — not your exact model.

Before you start — unplug the appliance and turn off the water supply. You'll be working near water and electrical parts, and drained water can be hot. If a step involves the pump, wiring, or opening the cabinet and you're unsure, stop and call a qualified technician.

Step-by-step fix

1Silence and clearPress Cancel to stop the alarm and drain, then press again to clear the code.
2Check connectionsInspect all water supply and drain connections; make sure rubber washers are seated and fittings are snug.
3Dry the base trayWater in the drip tray must dry out (or be manually removed) before the float resets and the unit will run.
4Reduce sudsUse only automatic dishwasher detergent in the correct amount to avoid foam pushing water into the tray.
5Check seals and sumpInspect the door gasket, filter, and sump seating for leaks; reseat the float switch connector if loose.
6Escalate if it repeatsIf the code returns with no visible leak, have the float switch and seals inspected.

Still showing F8E4?

If you’ve worked through every step and F8E4 keeps returning, an internal part likely needs testing and replacement. That’s a job for a qualified appliance technician, who can measure the suspect part against the service-manual spec before replacing it.

Which models this applies to

Whirlpool dishwashers. Whirlpool, KitchenAid, and Maytag dishwashers with a base leak-detection float; shown as a digital fault code.

FAQ

What does Whirlpool F8E4 mean?

Overflow/leak — water in the base tray float switch. The float switch in the drip tray at the base of the dishwasher sensed water, so the unit shuts down and runs the drain pump to protect against flooding. Controls stay locked until the tray dries out.

What causes Whirlpool F8E4?

The most likely cause is loose inlet or drain hose connection or clamp. Other causes include Excess suds from dish soap or too much detergent/rinse aid; Seeping water inlet valve; Worn door gasket or bottom wiper seal; Mis-seated sump or filter assembly; Faulty or disconnected base float switch.

Can I fix Whirlpool F8E4 myself?

Usually yes. Start by working through the steps above, beginning with: press cancel to stop the alarm and drain, then press again to clear the code.