If the dishwasher heating element is broken, you should replace it. If the heating element isn't broken, check for a wiring failure, control failure or a blown fuse in the heating circuit before you replace it.
Follow these steps to fix your issue:
Shut off electrical power and water supply to the dishwasher
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. The dishwasher has a water supply valve. Shut off the water supply to the dishwasher.
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.
Pull out the dishwasher
As you pull the dishwasher out from under the counter, position the dishwasher power cord so it moves freely. If your dishwasher doesn't have a power cord, there is a tip. There is a towel under the water supply line connection. Remove the water supply line from the water inlet valve. The garbage disposal or sink drain has a drain line. The dishwasher is secured in the cabinet opening with 2 mounting screws. The junction box cover should be removed if the dishwasher power supply is hard-wired directly into it. The power cable needs to be released from the junction box.
Remove the heating element
Pull the bottom dishrack out of the dishwasher. The heating element's wiring and mounting hardware can be accessed by laying the dishwasher on its back. The wires need to be removed from the heating element. Remove the plastic heating element mounting nuts with a crescent wrench. Put the dishwasher in upright position and open the door. Pull the heating element into the tub. The element needs to be pulled out.
Install the new heating element
Take a small amount of rinse aid and Lubricate the seals on the heating element. The new heating element needs to be pushed through the holes in the back of the tub. Attach the mounting clip to the heating element. The dishwasher should be on the back. Do not thread the plastic nuts if you install the plastic nuts on the ends of the leads. To prevent leaks, tighten the nuts until they are snug. The heating element's leads have wires on them. The dishwasher needs to be upright. Put water in the dishwasher. There are leaks around the plastic nuts. To seat the rubber seals, tighten the nuts. The bottom dishrack needs to be reinstalled.
Reinstall the dishwasher
Pull the dishwasher under the counter. Remove the drain hose from the garbage disposal or sink drain. The inlet water valve should be connected to the water supply line. Attach the screws to the mounting brackets that hold the dishwasher under the counter. The access panel should be positioned in front of the toe panel on the dishwasher. Attach and tighten the screws. Push the power cable into the junction box if the dishwasher hardwires there. Remove the junction box cover and connect the wires to the junction box.
Restore electrical power and the water supply
Plug in the dishwasher or reset the house circuit breaker. You can open the water supply valve.
You would need the following tools:
channel lock pliers, crescent wrench, nut driver set, rinse aid (to lubricate seals), towel, work gloves.
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