Dishwasher Not Heating Enough? Step-by-Step Guide to Fix It

Is your dishwasher not heating enough? It can lead to unwelcome surprises like greasy dishes and poorly sanitized kitchenware. In this guide, we’ll walk you through each step required to diagnose and resolve this common issue.

Dishwasher Not Heating Enough
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Dishwasher Not Heating Enough: Causes

Before diving into solutions, it’s crucial to understand the potential reasons behind your dishwasher not heating enough. These may include:

  • Heating Element Malfunction
  • Thermostat Issues
  • Faulty Wiring
  • Control Board Problems

Step 1: Check the Heating Element

The first thing to check when your dishwasher is not heating enough is the heating element. This part is responsible for warming the water during the cleaning cycle.

  1. Disconnect the dishwasher from the electrical outlet.
  2. Open the dishwasher and locate the heating element. This is usually a coil at the bottom.
  3. Examine the element for any visible signs of damage, like cracks or burn marks.
  4. If damaged, the element will need to be replaced.

Step 2: Test the Thermostat

The thermostat in your dishwasher regulates the temperature of the water. If it’s not working correctly, this could be the reason your dishwasher is not heating enough.

  1. Access the thermostat by removing the dishwasher’s bottom panel.
  2. Use a multimeter to test the thermostat for continuity.
  3. If it doesn’t show continuity, replace the thermostat.

Step 3: Inspect the Wiring

Electrical issues could be behind your dishwasher not heating enough. It’s important to inspect the wiring to ensure everything is as it should be.

  1. Unplug the dishwasher.
  2. Open the panel where the wiring is located, usually behind or beneath the appliance.
  3. Check for any frayed or damaged wires.
  4. If you find issues, consult a professional for repair.
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For more articles on dishwashers, click here: Dishwasher Problems and Solutions: Your Ultimate Guide to Hassle-free Dishwashing

Step 4: Assess the Control Board

The control board is essentially the brain of your dishwasher. If it’s faulty, several dishwasher functions, including heating, may not work correctly.

  1. Access the control board, typically located behind the dishwasher’s control panel.
  2. Examine it for any visible signs of damage or burning.
  3. If you find any, you may need to replace the control board.

Please note that the steps to replace any damaged parts in your dishwasher will vary depending on the model of your appliance. It’s best to consult your manual for specific steps.


Dealing with a dishwasher not heating enough can be frustrating, but the issue is usually solvable with some basic troubleshooting. By carefully following the steps outlined above, you can identify the root cause and take appropriate action to resolve the problem.