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Error code reference

Amana Dishwasher Error Code 1-2

Control software issue

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What the 1-2 error code actually means

Your dishwasher's main control board has detected a problem with its own internal software or memory, similar to a computer experiencing a corrupted file. This is not caused by a broken part you can see or touch, and it cannot be fixed by resetting the cycle or cleaning any components. The control board itself needs to be replaced to resolve this error.

Diagnostic procedure

The full 1-2 procedure

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1
First diagnostic step
Unplug dishwasher or disconnect power. Replace control board.
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Most common causes of 1-2

Ranked by how often they cause this code
  1. 1Corrupted control board memory
  2. 2Incompatible software components within the microcontroller
  3. 3Power surge damage to the control board
  4. 4Failed or incomplete control board update

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Questions people ask about 1-2

What does error code 1-2 mean on an Amana dishwasher?
Error code 1-2 on an Amana dishwasher means the main control board has detected a software fault. Either the onboard memory is damaged or corrupted, or the software components inside the microcontroller are incompatible with each other. This is an internal board issue and cannot be fixed by resetting the dishwasher or checking connections.
Can I still use my Amana dishwasher with error code 1-2 active?
You should not continue running the dishwasher with error code 1-2 active. A corrupted or damaged control board cannot reliably manage the cycle, valves, or pump. Running the appliance in this condition risks incomplete cycles, water not draining properly, or unpredictable behavior that could cause water damage.
Will resetting my Amana dishwasher clear error code 1-2?
A power reset may temporarily clear the display, but error code 1-2 will return once the control board attempts to run its software again. The underlying cause is physical damage or corruption inside the board's memory or microcontroller, which a reset cannot repair. Replacing the control board is the only lasting fix.
How do I fix error code 1-2 on an Amana dishwasher?
Start by unplugging the dishwasher or shutting off its circuit breaker to cut power completely. The fix for error code 1-2 is replacement of the main control board. Because the fault is inside the microcontroller's memory or software, no amount of resetting or cleaning will correct it. Order a compatible replacement control board for your specific Amana model and swap the board out.
How much does it cost to fix error code 1-2 on an Amana dishwasher?
A replacement Amana dishwasher control board typically costs between $80 and $200 depending on the model. If you hire a technician, expect to add $100 to $200 in labor, bringing the total repair to roughly $180 to $400. The repair itself is moderately DIY-friendly since it involves disconnecting a wiring harness and swapping the board, but if you are not comfortable working with appliance electronics, a professional repair is a reasonable option.

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