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Error code reference

KitchenAid Dishwasher Error Code 1 Blink

Control problem detected.

KitchenAid codesKitchenAid dishwasher codes
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What the 1 Blink error code actually means

Your KitchenAid dishwasher is flashing one blink to tell you that something has gone wrong with its main control board, the electronic brain that runs the machine. This could be a temporary glitch caused by a power surge or interruption, or it could indicate that the control board itself has failed. If unplugging the dishwasher for a minute and restarting it does not clear the issue, you should call a technician.

Diagnostic procedure

The full 1 Blink procedure

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Most common causes of 1 Blink

Ranked by how often they cause this code
  1. 1Temporary control board glitch
  2. 2Failed or damaged control board
  3. 3Loose or corroded wiring connections at the control board
  4. 4Power supply voltage irregularities

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Questions people ask about 1 Blink

What does 1 Blink mean on a KitchenAid dishwasher?
One blink on a KitchenAid dishwasher indicates that the main control board has detected a problem with its own operation. This is a self-diagnostic fault code generated by the control electronics rather than by an external component. It can result from a temporary power glitch or a more serious control board failure. If the error persists after a reset, professional service is recommended.
Will resetting the dishwasher clear the 1 Blink error code?
A hard reset by cutting power for 60 seconds will sometimes clear the 1 Blink code if it was caused by a temporary power interruption or software fault. However, if the control board has sustained actual damage or there is an underlying wiring issue, the code will return after the reset. A reset that does not hold is a strong indicator that professional service is needed.
How much does it cost to repair a KitchenAid dishwasher showing the 1 Blink error?
Repair costs depend on the root cause. If a technician visit and inspection resolves the issue without parts, you can expect to pay a service call fee, typically in the range of $75 to $150. If the main control board requires replacement, parts and labor combined generally range from $200 to $400 or more depending on the specific model and local labor rates.
Can I fix the 1 Blink error on my KitchenAid dishwasher myself?
The first step you can take yourself is a hard reset: disconnect power to the dishwasher for at least one minute and then restore it. You can also check that the power supply connection is secure and inspect any visible wiring at the control board for obvious corrosion or loose connectors. If the code returns after these steps, the control board likely requires evaluation or replacement by a qualified technician.
Is it safe to use my KitchenAid dishwasher when the 1 Blink error is showing?
Running the dishwasher with an active 1 Blink control fault is not advisable. The main control board governs safety-critical functions including overfill protection and heating element operation, and a compromised control system may not manage these functions correctly. It is best to stop using the appliance until the fault has been diagnosed and resolved.

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