How to Enter Diagnostic Mode on a Whirlpool Dishwasher

Whirlpool dishwashers use F#E# code pairs. Display models show them directly; non-display models blink them on the Clean light. Service mode is entered with a button-press pattern.

Step-by-Step: Whirlpool Dishwasher Diagnostics

1
Display models: the code shows as an F#E# pair, or count the Clean-light blinks on non-display models — the light flashes the F value, pauses, then the E value, repeating.
2
Enter service diagnostics: press any three different buttons (avoiding Start/Cancel) in the pattern 1-2-3, 1-2-3, 1-2-3 within about 8 seconds. All lights illuminate and the controller runs through a full test cycle.
3
During the service cycle, each interval actuates a single component (fill valve, wash motor, heater, drain pump) — note where it fails.
4
Stored fault history shows at the start of service mode on display models.
5
The tech sheet in a plastic pouch behind the kick plate maps every F/E combination.

💡 Good to know: The 1-2-3 pattern works across most Whirlpool, KitchenAid, Maytag, Kenmore (665-prefix), and Amana dishwashers — they share the same control platform.

Found a Code? Look It Up

Once diagnostics shows you a stored code, find its meaning and fix guide in the full Whirlpool dishwasher code list. These are the highest-priority codes on this platform:

F9E1

Drain pump failure — dishwasher not draining

⚠ High Severity

F6E4

Wash heater or heating element failure

⚠ High Severity

F6E1

Water heating failure — not reaching target temperature

⚠ High Severity

F7E1

Circulation pump motor error

⚠ High Severity

F8E4

Water level fault — float switch tripped or level reading invalid

⚠ High Severity

Frequently Asked Questions

How do I put a Whirlpool dishwasher in diagnostic mode? +

Press any three buttons (not Start/Cancel) in the order 1-2-3, 1-2-3, 1-2-3 within ~8 seconds. The lights illuminate and a service test cycle begins, actuating one component at a time.

How do I read error codes on a Whirlpool dishwasher without a display? +

Watch the Clean light: it blinks the F number, pauses, blinks the E number, then repeats. For example 6 blinks–pause–4 blinks = F6E4 (float switch).

How to Reset a Whirlpool Dishwasher → ← All Whirlpool Dishwasher Error Codes