Typical malfunctions of the Ariston dishwasher and how to fix them

Modern household appliances Ariston deservedly enjoys popularity due to its reliability and functionality, however, even the highest quality units can fail over time. Owning a dishwasher makes life a lot easier, but when an error code appears on the display or the water stops flowing, it's a serious concern. Understanding the nature of the breakdown is the first step to successfully restoring the device’s functionality without calling a repairman.

In this article we will examine in detail the main reasons for malfunctions in brand dishwashers. Ariston, from electrical problems to mechanical damage to pumps. You will learn how to diagnose a malfunction yourself, whether you should try to repair the unit yourself or whether it is better to contact a service center. Competent diagnostics will help save time and money, and also extend the life of your kitchen assistant.

It is worth noting that many of the problems that users encounter often lie in simple non-compliance with operating rules or clogged filters. Regular Maintenance and careful attention to device signals can prevent up to 70% of serious breakdowns. Let's look at what you need to pay attention to first when the first signs of a malfunction appear.

Problems with water intake and pressure

One of the most common complaints from dishwasher owners Ariston There is a situation when the unit stops drawing water or does it extremely slowly. Often the reason lies not in the device itself, but in the external water supply. Low pressure in the water supply system may not overcome the resistance of the inlet valve, which is why the machine simply does not complete the wash cycle. Check that the water supply valve is fully open and that there are no kinks in the hose.

The second important element that requires verification is intake valve. Over time, rust, sand and limescale accumulate on its mesh filter, which significantly reduces throughput. If the filter is clogged, the machine will hum, trying to draw water, but the process will go extremely slowly or stop altogether. Carefully remove the filter, rinse it under running water and put it back.

⚠️ Attention: Before any manipulations with water hoses, be sure to turn off the water supply tap and disconnect the device from the power supply to avoid a short circuit or flood.

If external factors are excluded, and water still does not flow, the solenoid valve itself or the water level sensor (aquastop) may have failed. In such cases, replacement parts are required since repairing the valve's internal components is usually impractical. Diagnosis of these components requires the use of a multimeter to check the integrity of the coil winding.

It is also worth paying attention to the condition of the inlet hose. If it is old and has internal deposits, its throughput may be reduced. Hose replacement is required every 5-7 years of operation, even if outwardly it looks intact, since rubber materials lose elasticity over time and can burst under pressure.

Errors in drainage and stagnation of water

The situation when the dishwasher Ariston does not drain water, is critical and requires immediate attention. Stopping the program during the draining phase or the presence of water at the bottom of the chamber after the end of the cycle indicates problems in the drainage system. The first thing you need to do is check drain hose for kinks, creases or blockages. Users often forget that the hose must be raised to a certain height before connecting to the sewer to prevent backflow of water.

The second key unit is the drainage pump (pump). It is he who pumps dirty water out of the car. If the pump hums, but the water stays still, the impeller may be jammed with a foreign object: a bone, a piece of glass, or a piece of plastic. If the pump is silent, check its electrical contacts and the motor winding. A burnt out pump motor requires replacement.

• 🚫 There is a blockage in the sink siphon or sewer pipe where the dishwasher is connected.
• 🚫 Clogged coarse filter inside the machine (located at the bottom of the washing chamber).
• 🚫 Malfunction of the pressure switch (water level sensor), which does not give a signal to turn on the pump.

Often the cause of poor drainage is contamination of the filter element itself in the bottom of the machine. Grease deposits and food debris can create a thick plug that is difficult to remove by simply rinsing. It is recommended to use special grease removers or soak the filter parts in a warm soda solution.

Some models Ariston A leak protection system has been installed that blocks drainage when water is detected in the pan. If the protection is triggered AquaStop, the machine may not follow commands. In this case, you need to find the cause of the leak, dry the pan and reset the error. Ignoring this signal can result in serious kitchen flooding.

Poor dishwashing

If, after completing the program, the dishes remain dirty, with deposits or traces of food, this indicates a violation of the washing technology. Most often the problem is sprinklers (rocker arms). The holes in them can become clogged with scale or detergent residue, which is why the water jets do not have the required pressure and do not wash the dishes from all sides. Remove the rocker arms and clean each hole with a fine wire or toothpick.

Another common cause is incorrect dosage or type of detergent. The use of conventional gels for hand washing is strictly prohibited, as they form excess foam, which interferes with the operation of the pump and impairs the quality of washing off dirt. For dishwashers Ariston special tablets, powders or gels with low foaming are intended.

It is also important to monitor the salt level in the tank, especially if you have hard water. Lack of salt leads to scale formation on the heating element and internal parts, which reduces cleaning efficiency over time. Regeneration salt softens the water, allowing the detergent to work at full strength.

⚠️ Attention: Never pour salt directly into the washing chamber or into the tablet compartment - this may cause corrosion of the (stainless steel) tank.

Water temperature also plays an important role. If the “Eco” or “Quick Wash” mode is selected when it is heavily soiled, the machine may simply not have time to dissolve the grease. Animal fats solidify at temperatures below 40 degrees, so for greasy dishes always choose programs that heat water to 60-70 degrees.

Why does a white residue remain on dishes?

White residue most often occurs due to the use of too much salt or its entry into the washing chamber during filling. The cause may also be incorrectly set water hardness in the machine settings. If the water is too soft for the current settings, the salt will not be completely used and will settle on the dishes. Try reducing the salt supply or closing the lid of the salt container more carefully.

Heating element malfunctions

The heating element (heating element) is one of the most loaded components of a dishwasher Ariston. It is he who is responsible for heating the water to the desired temperature and drying the dishes at the end of the cycle. The main reason for heating element failure is scale formation. Limescale has low thermal conductivity, which causes the spiral inside the tube to overheat and burn out. Symptoms of a malfunction include cold water during washing or an incomplete drying cycle.

You can check the heating element visually and using a multimeter. If swelling, cracks or through burns are visible on the surface, the part must be replaced. When dialing, the device should show a resistance in the range of 20-40 ohms. If the resistance is infinitely high (open) or zero (short circuit), the element is faulty. It is also important to check the resistance for breakdown on the housing.

In models with flow-through heating (fill-in machines), the heating element may burn out due to dry operation if the water pressure drops and the flow sensor does not work. In such cases, it is often necessary to change not only the heater, but also check the entire hydraulic group. Replacing heating elements in dishwashers Ariston usually requires partial disassembly of the hull or access through the bottom.

Symptom	Possible reason	Action
The water doesn't heat up	Scale on the heating element, broken spiral	Replacing the heating element
Knocks out the machine	Breakdown of the heating element to the body	Urgent replacement, operation is dangerous
Poor drying	Underheating of water at the end of the cycle	Checking the heating element and thermostat
Error on display	Temperature sensor malfunction	Electronics diagnostics

To extend the life of the heating element, it is recommended to regularly use descaling agents (calcium cleaners) and set the correct water hardness in the machine settings. This will allow the heater to operate at optimal temperature conditions without overheating.

Noise, vibration and extraneous sounds

Working dishwasher Ariston It works quite quietly, producing only a uniform sound of flowing water. The appearance of a grinding noise, loud hum, knocking or whistling indicates mechanical problems. Most often, the source of noise is the bearings of the circulation or drainage pump. When the lubricant in the bearings dries out or water gets in, metal-to-metal friction begins, which is accompanied by a characteristic whine.

The dishes themselves can also make noise if they are not placed correctly in the baskets. Light plastic objects under the pressure of water can shift and fall to the bottom, falling under the rotating rocker. Always check that plates and glasses are securely fastened before starting a program. Use special glass clamps and removable knife holders.

Vibration and bouncing of the machine on the floor is often caused by improper installation. The dishwasher must stand strictly horizontally, resting on all four adjustable feet. If one of the legs does not touch the floor, the body will resonate when spinning or pumping. Adjust the legs using a level and make sure that the machine does not touch the walls of the headset niche.

• 🔊 Whistling - high pressure water leaking through seals or valves.
• 🔊 Loud hum - a blockage in the pump or wear on the motor bearings.
• 🔊 Cracking - a hard object (seeds, peach pits) hitting the pump impeller.

If you hear an intermittent cracking sound, stop the car immediately. This could mean that a foreign object is about to destroy the pump impeller, causing a more expensive repair. Removing the foreign body often solves the problem completely.

Electronic failures and error codes

Modern dishwashers Ariston equipped with a sophisticated self-diagnosis system. If a malfunction is detected, the electronic module blocks operation and displays an error code or blinks the indicators in a certain sequence. Deciphering these codes is the key to quick repairs. For example, the flashing of the “Salt” indicator may mean not only its absence, but also problems with water regeneration.

A common problem is the program freezing. The machine hums, the pumps work, but the cycle does not switch. In this case, a full reset (Hard Reset) helps. To do this, you need to hold down the power button (or the combination of buttons specified in the instructions) for 10-15 seconds until a characteristic sound signal is heard. After rebooting, try running a short cycle.

If the errors continue, there may be a problem with the control module. Voltage surges in the network, moisture on the contacts or oxidation of the cables can lead to incorrect operation of the electronics. A visual inspection of the board may reveal burnt elements, swollen capacitors, or traces of burning.

⚠️ Attention: Repairing the electronic control module requires professional knowledge and soldering equipment. Do not try to repair the board yourself without experience, this may lead to complete failure of the machine.

For accurate diagnosis, use the error code table specific to your model Ariston. Codes may vary depending on the series (L, XL, Professional). Record the flash sequence if there is no digital display and check the owner's manual.

Prevention and operating rules

To the dishwasher Ariston served you for many years without breakdowns, it is important to follow simple operating rules. Regular cleaning of filters, use of high-quality detergents and timely maintenance are the key to trouble-free operation. Don't overload the baskets, keep the spray arms clean, and run a cleaning cycle with a special product at least once a month.

Pay attention to water quality. If your area has very hard water, increase the salt supply and use descaling agents more often. This will protect not only the heating element, but also plastic parts, glass surfaces and metal elements of the inner chamber. Prevention is always cheaper than replacing expensive components.

If you have any doubts or complex faults, it is better to contact qualified specialists. Self-repair without proper qualifications can lead to loss of warranty (if it is still valid) and aggravation of the situation. Take care of your equipment, and it will respond to you with impeccably clean dishes.

Can aluminum cookware be washed in the dishwasher?

No, items made of aluminum, crystal, wood and painted ceramics cannot be washed in the dishwasher. The aluminum will blacken, the crystal will become cloudy, the wood will swell, and the design on the ceramic will be washed off. These materials are not intended for aggressive chemicals and high temperatures.

Why doesn't my Ariston dishwasher turn on?

There may be several reasons: lack of electricity in the outlet, faulty power cord, activated leakage protection (AquaStop) or broken power button. Check the presence of voltage in the network, the integrity of the plug and make sure that the car door is tightly closed until it clicks.

What does the flashing Rinse light mean?

Most often, this is a signal that there is water left in the machine after draining, or the filter is clogged, or the water level sensor is faulty. Check the drain hose for blockages and make sure the filter at the bottom of the chamber is clean.

How to reset an error on an Ariston dishwasher?

To reset the error, you usually need to turn off the machine with the button, then hold down the power button (or program) for 5-10 seconds until a beep sounds. If this does not help, unplug the machine for 15-20 minutes to completely reset the electronic module memory.

Why is there a white residue on dishes after washing?

The white coating is salt. The reason is that the lid of the salt container was not closed properly, or the salt spilled past the hole when filling. It is also possible that the water hardness is set too high for your area.

Can I use the 3 in 1 tablet without salt?

"3 in 1" tablets contain salt, but the amount is calculated for medium hardness. If you have very hard water, one tablet may not be enough and the machine will overwork. In such cases, it is better to use separate salt and tablets without it (Solo) or monitor the condition of the heating element.