Dishwasher Not Making Hot Water: 5 Common Causes and Fixes

If your dishwasher not making hot water is causing you stress, you’re not alone. This common issue can lead to less effective cleaning and even potential damage to your appliance. This article will guide you through simple troubleshooting steps to help you find a solution.

Dishwasher Not Making Hot Water
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1. Electrical Issues

If you find your dishwasher not making hot water, one of the initial places to inspect is the electrical components. Electrical issues are commonly overlooked but can cause your appliance to malfunction.

Step-by-step Procedure

Unplug your dishwasher from the electrical outlet: Safety should always be your first priority. Unplugging your dishwasher ensures that you won’t accidentally shock yourself while investigating the problem.

Check the fuse or circuit breaker associated with the dishwasher: Locate your home’s electrical panel and find the switch that corresponds to your dishwasher. If the circuit breaker has tripped, reset it by flipping the switch to the “OFF” position, and then back to the “ON” position.

Plug the dishwasher back in and run a cycle to see if the issue is resolved: After taking the aforementioned steps, plug your dishwasher back into the electrical outlet and run a brief wash cycle. Observe whether the water heats up as expected.

2. Faulty Heating Element

A malfunctioning heating element is another common reason behind your dishwasher not making hot water. The heating element is vital for raising the water temperature, and therefore, is crucial for proper dish cleaning.

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Step-by-step Procedure

Make sure the dishwasher is unplugged or turned off at the circuit breaker: Just like with electrical issues, begin by ensuring the dishwasher is not connected to a power source.

Open the dishwasher and locate the heating element, usually at the bottom: The heating element is generally a looped tube situated at the base of the dishwasher.

Inspect the element for visible damage like cracks or corrosion: Use a flashlight to examine the element for any obvious signs of wear and tear. Any cracks, breaks, or noticeable rust are indicators of a faulty element.

If the element looks damaged, consider replacing it: A damaged heating element should be replaced by a compatible unit. Either consult your dishwasher’s manual for guidance or call a professional to do so.

3. Thermostat Problems

The thermostat controls the temperature of the water in your dishwasher. A malfunctioning thermostat can result in the dishwasher not making hot water.

Step-by-step Procedure

Open the dishwasher’s panel to access the thermostat: Typically, you’ll need to remove some screws to access the internal components where the thermostat is located.

Use a multimeter to test the thermostat for continuity: A multimeter can indicate whether electrical current is passing through the thermostat properly.

If it fails the test, replace the thermostat: Should your thermostat fail the continuity test, you’ll need to replace it with a new one, either by following your appliance manual or by consulting a qualified technician.

4. Inlet Valve Malfunctions

The inlet valve controls the flow of water into the dishwasher. A faulty valve may not allow hot water to enter, affecting the machine’s cleaning ability.

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Step-by-step Procedure

Disconnect the dishwasher from the water supply: Turn off the water valve typically located under the sink or behind the dishwasher.

Locate the inlet valve and check for clogs or damage: The inlet valve is generally located at the bottom of the dishwasher. Check it for any visible damage or blockages.

If it appears to be faulty, replace the valve: If the inlet valve is not functioning correctly, you’ll have to install a new one. Replacement valves can be purchased online or from appliance repair stores.

5. Control Board Issues

The control board is essentially the “brain” of your dishwasher, managing all its functions. Damage to the control board can result in a series of problems, including the dishwasher not making hot water.

Step-by-step Procedure

Access the dishwasher’s control board by removing the panel: The control board is often located behind the dishwasher’s front panel. You’ll need to remove some screws to get to it.

Check for burnt spots or other visible damages: Look for any signs of electrical burns or damaged components on the control board.

If you see any signs of damage, consider replacing the control board: If you find that the control board is damaged, it’s typically best to have it replaced by a professional to ensure proper installation and functionality.

Please note that specific steps to access and replace damaged components will vary depending on the model of your appliance. Check your manual for specific information.

For more articles on dishwashers, click here: Dishwasher Problems and Solutions: Your Ultimate Guide to Hassle-free Dishwashing

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Conclusion: Dishwasher Not Making Hot Water

These are the most common causes and solutions for a dishwasher not making hot water. Remember to always take proper safety precautions, such as disconnecting the appliance from electricity, before performing any troubleshooting steps.