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Error code reference

Amana Dishwasher Error Code 7-2

Heater stuck on

Amana codesAmana dishwasher codes
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What the 7-2 error code actually means

Your dishwasher's control board has detected that the heating element is not turning off when it should. This is a sign that something inside the control board itself has failed, specifically the component responsible for cutting power to the heater. Because the dishwasher cannot safely control its own heating system, it has stopped operating and will need a control board repair or replacement to fix the problem.

Diagnostic procedure

The full 7-2 procedure

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1
First diagnostic step
1. Unplug dishwasher or disconnect power and replace control. 2. Inspect heater and connections for overheating/shorting. If evidence of overheating or shorts exists, replace.
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Most common causes of 7-2

Ranked by how often they cause this code
  1. 1Failed heater drive relay on control board
  2. 2Shorted heating element
  3. 3Damaged or shorted wiring harness to heater
  4. 4Corroded or loose heater connector pins

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Questions people ask about 7-2

What does error code 7-2 mean on an Amana dishwasher?
Error code 7-2 means the control board has detected that the heater drive circuit is stuck in the on position. The board cannot confirm that the heating element has been properly shut off. This points to a fault in the heater drive circuit on the control board itself, though a shorted heating element or damaged wiring can also cause or contribute to this condition.
How do I fix error code 7-2 on an Amana dishwasher?
Start by unplugging the dishwasher or shutting off its circuit breaker. The primary fix is replacing the control board, since the fault is in the heater drive circuit on that board. Before installing a new control, inspect the heating element and all wiring connections for signs of overheating, melting, or shorts. If the heater or wiring shows damage, replace those components as well, or the new control board may fail from the same cause.
Can a bad heating element cause a 7-2 code on an Amana dishwasher?
Yes. A shorted heating element can damage the heater drive circuit on the control board, causing it to register a 7-2 fault. If you replace only the control board without inspecting the heater, the new board can fail for the same reason. Always check the heating element and its wiring connections for visible damage and test the element's resistance before completing the repair.
Is it safe to use my Amana dishwasher when it shows error code 7-2?
No, you should not continue using the dishwasher with a 7-2 code active. A heater stuck in the on state can cause the interior of the dishwasher to overheat, potentially damaging plastic components, wiring, and the control board. Disconnect power to the unit until the control board and heater have been inspected and repaired.
How much does it cost to fix a 7-2 error on an Amana dishwasher?
A replacement Amana dishwasher control board typically costs between $80 and $200 for the part, depending on the model. If the heating element also needs replacement, add roughly $20 to $60 for that part. A professional appliance technician will add one to two hours of labor, which generally runs $100 to $200 depending on your area. DIY replacement of the control board is manageable for someone comfortable working with appliance wiring, but always disconnect power before starting any repair.

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