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Error code reference

KitchenAid Dishwasher Error Code F1E1

Relay or triac failure on main control board (ACU).

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What the F1E1 error code actually means

Your KitchenAid dishwasher has detected a failure in a key electronic switching component inside its main control board. This means the board can no longer properly turn certain parts of the dishwasher on or off. The control board will need to be replaced to get the dishwasher working again.

Diagnostic procedure

The full F1E1 procedure

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1
First diagnostic step
Unplug dishwasher or disconnect power and replace control.
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Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of F1E1

Ranked by how often they cause this code
  1. 1Failed triac or relay on the ACU
  2. 2Voltage spike or power surge damage
  3. 3Shorted load component causing overcurrent
  4. 4Corroded or damaged wiring harness connections at the ACU

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Questions people ask about F1E1

What does F1E1 mean on a KitchenAid dishwasher?
F1E1 indicates that the main control board, called the ACU, has detected a failure in one of its internal relay or triac switching components. These components control power delivery to parts like the wash motor, drain pump, and heating element. When this fault is detected, the dishwasher stops operating to prevent unsafe conditions. The ACU must be replaced to resolve this code.
Will resetting my KitchenAid dishwasher clear the F1E1 error?
A power reset is unlikely to clear F1E1 permanently because the fault reflects a physical hardware failure inside the control board. The code may temporarily disappear after cycling power, but it will return once the dishwasher attempts to operate and the faulty switching component is engaged again. Replacement of the ACU is the only lasting fix.
How much does it cost to fix a KitchenAid dishwasher F1E1 error?
If you replace the main control board yourself, parts typically range from $100 to $250 depending on the specific model. If you hire a technician, total repair costs including labor generally range from $200 to $400. It is worth comparing repair cost to the age and overall condition of the dishwasher before proceeding.
Can I fix F1E1 myself, or do I need a technician?
The repair requires disconnecting power and replacing the main control board. A knowledgeable DIYer comfortable working with appliance electronics can complete this repair by sourcing the correct ACU for their model and swapping the board. However, if you are not comfortable identifying the correct part or working inside the dishwasher's control area, a qualified technician is recommended.
Is it safe to use my dishwasher when F1E1 is displayed?
You should not continue using the dishwasher with an active F1E1 code. A failed triac can remain in a shorted state, meaning it may continuously pass power to a component even when the control board commands it off. This condition can create a risk of overheating or component damage. Disconnect power to the dishwasher until the ACU is replaced.

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