Ariston dishwasher does not heat water

It can be an annoying issue that interferes with your everyday routine if your Ariston dishwasher isn’t heating the water. Dishes must be spotless, and your dishwasher cannot effectively sanitize and remove tenacious grease or food residues without hot water.

Recognizing the cause of the non-heating water is the first step towards resolving the problem. It might be the result of a broken thermostat, a malfunctioning heating element, or a problem with the control board. Every one of these parts is essential to the efficient operation of your dishwasher.

There are a few tasks you can do on your own before thinking about hiring an expert. It can save you time and money to know what to look for, and it might even result in a quick fix that gets your dishwasher working again without needing any major repairs.

Determining the range of possible malfunctions

Anybody can experience the issues mentioned above when they turn on the dishwasher for the first time, but this does not imply that the device has already malfunctioned or was delivered to you defective. It’s possible that the gadget was just connected improperly.

Two smooth bends in the hose are required for the proper connection of household appliances: the first should be made at the dishwasher’s entrance, and the second should be made where the hose meets the siphon. If these bends are not made, sewer water may return to the Ariston dishwasher on a regular basis. This error prevents the "home assistant" from draining the water, which prevents the device’s liquid from flowing normally. Consequently, the user-specified water temperature will not be reached when work begins.

However, what would you do if everything went as planned, the equipment is connected, and the water doesn’t heat up? In this situation, you ought to investigate the most typical causes of a liquid temperature issue. You won’t need much experience with the equipment’s device to get rid of them because everything can be done simply by following our instructions. Initially, we will examine the dishwasher’s heating element, thermostat, and control module.

Let"s pay attention to the heating element

Even if you own an expensive model with a sophisticated self-diagnostic system, the machine might not be able to identify the cause of the issue if the water is not heated. You will need to examine the device yourself if the diagnostics are unable to provide the error code.

1. Turn the device over.
2. Remove the back wall to gain access to the heating element.
3. Inspect the heating element for damage.
4. Additionally test the part with a multimeter set to ohmmeter mode.

If the element has chips, cracks, or a thick layer of scale on it, something went wrong during the water’s heating process. Hard tap water conditions can cause the heater to break down once a year or even more frequently. As such, you should replace it right away rather than attempting to fix it.

The inability of an Ariston dishwasher to heat water usually points to a wiring, thermostat, or heating element issue. In order to determine the root cause, it is necessary to inspect these parts for issues and confirm that the water supply and dishwasher settings are set correctly. You can get the dishwasher to clean dishes with hot water again by taking care of these problems.

Thermostat and control module

We’ll check the temperature sensor next because, like the heating element, the thermostat frequently breaks down in contemporary dishwashers. If this component raised suspicions, take the following action:

• disconnect the equipment from all communications;
• take out all baskets from the washing chamber;
• disconnect the lower sprayer;
• remove the trash filter from the bottom of the chamber;
• turn the machine upside down;
• disconnect all side fasteners;
• disconnect the drain pipe, then remove the bottom of the unit, freeing access to the temperature sensor;
• disconnect all wires connected to the thermostat;

To have a reference for connecting the wires later, make sure you snap a picture of the sensor connected correctly.

• clean the contacts of the part;
• test the thermostat with a multimeter.

If the element is damaged, then you should buy a new one and install it in place according to the instructions in reverse order. After replacement, you need to check the functionality of the dishwasher, and if the problem remains, then pay attention to the control board. This is a kind of "computer" or "brain" of the dishwasher, which commands all other units of the device. Therefore, if all other elements are in good working order and continue to stably send signals to the control unit, and the unit itself is damaged, then the machine simply will not be able to function correctly. There will be no one to transmit the command to heat the water.

One of the most expensive parts of the dishwasher is the control module, so you shouldn’t attempt to fix it yourself to avoid unintentionally breaking it even more. It is best to contact a service center specialist right away if all other components have been checked and the only thing left to investigate is the control board. They can carry out intricate repairs and make an accurate diagnosis.

However, there are other factors besides the thermostat, control unit, and heating element that can impact water heating. Other possible causes include issues with the pressure sensor, a clogged filter, and improper operating mode selection.

There is too much debris inside

The garbage filter in the dishwasher prevents food residues and other debris from penetrating into the main components of the machine and clogging them. This part in Ariston dishwashers copes well with its main function, so it often gets clogged due to the fact that it blocks a large amount of dirt. In turn, if you do not remove this dirt in time, then at some point it will begin to interfere with the stable circulation of water in household appliances, which is why the heating element turns off, and the water inside the “home assistant” simply does not heat up. To fix this, you only need to thoroughly clean the filter from food residues and other contaminants.

Why is the impact of a clogged filter on heating so severe? Water should flow easily between the special containers and the storage tank once the device is turned on. Right now, the heating element keeps the water at a consistent temperature that is sufficient to wash the dishes perfectly. Weak water circulation allows water to build up in the tank. The dishwasher must replenish its supply by adding cold tap water, which the heater cannot heat up in time.

To ensure that the filter clogs much less frequently, always rinse the dishes before using them and remove any food residue.

To prevent issues with heating the water, clean the garbage filter at least a few times a month, depending on how often you wash it. When the machine is operating, you can check the storage tank to see if the filter needs to be cleaned. It’s time to clean the filter if it starts to fill with water. Restoring steady water circulation and resolving the liquid heating issue will require a thorough cleaning of this element.

Is the program set correctly?

An improperly chosen operating mode is another frequent cause of the absence of water heating. The dishwasher won’t heat the water above 40 degrees if the regulator is set at 40 degrees and the toggle switch is fixed at 90 degrees.

It’s also important to keep in mind that your machine might just be in the delicate dishwashing mode. The dishwasher’s peculiarity is that it can only heat water to a temperature of 40 degrees. Verify that the issue is not with the selected mode by checking it.

It is imperative that you take immediate action if the water in your Ariston dishwasher isn’t heating up. Dishes won’t be cleaned thoroughly without hot water, which may cause bigger issues later on.

Typical causes could be a broken thermostat, a malfunctioning heating element, or problems with the control board. The issue can frequently be fixed by inspecting and replacing these components as needed.

It’s always a good idea to consult with a qualified technician, though, if you don’t feel confident troubleshooting or fixing these components yourself. By doing this, you can make sure your dishwasher is fixed correctly and keeps providing you with good service.

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