f6 e4
Moderate
Whirlpool · Dishwashers
Float switch open / overfill detected
Quick Answer
Error code F6 E4 on your Whirlpool Dishwashers means: Float switch open / overfill detected. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Step 1: Disconnect power and turn off water supply.
2
Step 2: Check the overfill float switch for obstructions.
3
Step 3: Confirm no water enters the dishwasher when it is turned off.
4
Step 4: Test the water inlet valve to ensure it shuts off completely.
5
Step 5: Replace the overfill switch or water inlet valve as necessary.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Overfill float switch
Water inlet valve
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