On the covered Whirlpool dishwasher, F8 E4 means water was detected in the drip tray or the tub is overfilled; on the older tables, a drain pump motor failure First, check the water supply connection, the float switch and the drip tray.
Differential
Likely causes of “Whirlpool dishwasher code F8 E4”, and how to tell them apart
- 1
A water supply connection that is not tight (new installation)
What separates it Water shows at a connection point and the code appears soon after installation
How to confirm Whirlpool says to check every connection point and that the rubber washer is seated in the fitting
- 2
A float switch that is not connected
What separates it The float switch connector has come loose from its housing
How to confirm Ensure the float switch is properly connected and the power wire does not touch the motor or tub
- 3
Water in the drip tray
What separates it The drip tray under the front holds standing water
How to confirm Empty the drip tray, as Whirlpool says, and dry it
- 4
Excessive suds
What separates it Foam or bubbles are present when you open the dishwasher
How to confirm Whirlpool says the wrong or too much detergent causes over-sudsing that can push water out
- 5
A failed drain pump motor (older tables)
What separates it The pump does not run and the tub stays full
How to confirm The older table calls F8 E4 a drain pump motor failure
Before you touch a setting
Record this first — changing settings destroys the evidence
- The exact display code shown, which is F8 E4
- Whether the dishwasher was newly installed
- Whether the drip tray holds water
Try in this order
0 of 6 completedWhat to do first
ReversibleCheck the water supply connection, the float switch and the drip tray.
Correct only the documented fault domain
ReversibleCorrect an installation or suds cause; arrange service for a genuine leak. Whirlpool documents these checks for this code: was the dishwasher newly installed; do you see water; and are there excessive suds. Work them in that order and correct only what you actually find.
Check a new installation
ReversibleWhirlpool asks whether the dishwasher was newly installed. Check the supply connection points; slide the 3/4 inch (19 mm) fitting of the 90 degree elbow up to the valve and hand-tighten it to avoid cross-threading, then check the tightness with pliers, since an extra quarter to half turn may be needed to seal the rubber gasket. Route the fill hose out the rear left side of the unit.
Check the float switch
ReversibleEnsure the float switch is properly connected: align the connector with its housing and push in until the locking tab is visible over the back of the connector.
Empty the drip tray
ReversibleTo remove the drip pan assembly, press the snap at each side of the plastic tray toward the center and pull toward you, taking care not to pull too far because the float switch wire is still connected.
Clear the code and check for suds
ReversiblePress Cancel once to silence the alarm tone, then again to clear the code. If suds are present, turn the dishwasher off and let them dissipate; use only detergent made for automatic dishwashers.
Model-specific
What is true of this model and not of its siblings
- Displayed as
- F8 E4 (8-4 on the older MicroClean HE table).
- Parts named by the service tables
- Drain pump.
Stop boundary
When this stops being a self-service repair
- !Turn off the water supply and press Cancel once if the dishwasher was professionally installed and is leaking, as Whirlpool says; do not turn off the power and keep the door closed
- !Unplug the dishwasher before you check any wiring or pump
Evidence ledger
Sources behind this answer
Where the manufacturer's article stops. The 3/4 inch fitting, the quarter to half turn and the drip pan removal are Whirlpool's own wording.
Exact questions
Common questions
What does F8 E4 mean on a Whirlpool dishwasher?+
water was detected in the drip tray or the tub is overfilled; on the older tables, a drain pump motor failure
What if the dishwasher was professionally installed?+
Whirlpool says the drain sequence will begin and operation will be prevented; turn off the water supply, press Cancel once, do not turn off the power and keep the door closed.
What is the older table's fix?+
Check the drain pump wire harness, clear debris that may stop the impeller, and replace the pump if it is clear.