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How do I replace a High-Limit Thermostat in a Dishwasher?

The high-limit thermostat is located at the bottom of the dishwasher tub. The heating element is prevented from heating when the thermostat goes to a cooler temperature. Without heat, dishes won't dry. The high-limit thermostat can be used to check for continuity. If you don't measure continuity at room temperature, you should replace the high-limit thermostat.

Follow these steps to fix your issue:

  1. Shut off electrical power

    Shut off the house circuit breaker if you want to unplug the dishwasher. The control panel should not light up if you press a control button or the power button.

  2. Remove the outer door panel and control panel

    The dishwasher door can be opened by removing the screws from the inner door panel. The outer door panel needs to be supported with one hand as you remove the last 2 screws. The outer door panel should be separated from the inner door panel and the control panel should be disconnected from the control panel. Remove the outer door panel.

  3. Remove the bottom front access panel and toe panel

    The screws that hold the toe panel in place should be removed using a nut driver. The access panel and the toe panel need to be removed.

  4. Remove the high-limit thermostat

    The thermostat has wires on it. Pull out the metal mounting brackets from the dishwasher frame and the high-limit thermostat. The high-limit thermostat needs to be removed from the mount.

  5. Install the new high-limit thermostat

    Push the thermostat into the mount. The dishwasher frame has a new high-limit thermostat. The wires need to be connected to the thermostat.

  6. Reinstall the bottom front access panel and toe panel

    Put the access panel in front of the toe panel on the dishwasher. Put the screws in and tighten them.

  7. Reinstall the outer door panel and control panel

    If you want to connect the user interface control wire harness, position the outer door panel and control panel close to the inner door. Attach the outer door panel and control panel to the inner door panel by connecting the user interface control wire harness. The mounting screws need to be reinstalled.

  8. Restore electrical power

    Plug in the dishwasher or reset the house circuit breaker.

Time required:

30 minutes.

You would need the following tools:

nut driver set, torx screwdriver, work gloves.

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