Meaning of error H20 in Hotpoint Ariston washing machine

It can be a little concerning if your Hotpoint Ariston washing machine suddenly displays the H20 error. This code is attempting to inform you about a critical aspect of your computer’s operation.

H20 errors typically indicate a problem with the water source. Knowing what this error means can help you quickly fix it and get back to your laundry, whether the cause is a blocked hose, low water pressure, or something else entirely.

This post will explain the possible causes of the H20 error and walk you through the easy fixes.

General information about error H20 in Hotpoint Ariston washing machine

The equipment’s control unit supports the main units’ diagnostics by utilizing the control panel’s indicators or the display of fault codes to show faults.

The operating instructions contain information on the values of alphanumeric combinations and the number of pulses.

Symptoms and signs

The primary indicators of a liquid supply issue in Hotpoint Ariston washing machines are:

• lack of or overflow of water in the drum;
• filling a small volume of liquid, insufficient for wetting the laundry and washing;
• constant operation of the pump to pump and drain liquid.

See also: The key elements to remember when replacing an Ariston washing machine’s drum bearing on your own

Regardless of the algorithm selected, the issue still arises.

The machine can begin operating, but an error is recorded after ten to fifteen minutes.

Restarting the program does not bring the equipment back to functionality when it stops in the rinse mode, according to some owners.

After the H20 code, if another set of letters and numbers (like F02) appears on the screen, it indicates that other equipment that isn’t connected to the bay or water pumping is malfunctioning.

Decoding

The manufacturer purposefully used the acronym H20, which stands for the chemical formula for water (a code in the form of F with an Arabic numeral from 0 to 9 is used to describe other malfunctions). The code display shows that there is not enough liquid in the tank and that the water level is too high.

A Hotpoint Ariston washing machine with error H20 typically has a water supply issue, which means the machine isn’t getting enough water to run correctly. A clogged filter, a kinked or blocked hose, or a problem with the water pressure could be the cause of this. Comprehending this error aids in promptly detecting and resolving the issue to ensure your washing machine functions properly.

The main reasons that can be easily eliminated on your own

Without taking the machine apart, you must perform a preliminary inspection if the value H20 appears on the display:

• make sure that the water supply system is in good condition in the house;
• check the condition of the standard mesh filter;
• turn off the power and reset the control unit;
• make sure the drain hose is correctly laid and there is no blockage in the sewer pipe.

No water in the device

The water mains have valves on them. The washing machine tank’s liquid supply is cut off if they are entirely or partially blocked.

Turn on the mixer tap to see. In the event that there is no pressure, the valves must be checked.

A total shutdown or low liquid pressure in the water supply mains as a result of an accident could also be the cause of the defect.

Weak pressure

• partially closed tap on the cold water supply pipe;
• damage to the mains due to an accident or connection of equipment with increased water consumption;
• reduction in the flow cross-section of the pipes due to the formation of a rust layer or the ingress of large dirt fragments.

Clogging of the filter

Large dirt particles are separated by a mesh filter at the washing machine valve’s inlet. The water pressure decreases when the element becomes clogged. You must shut off the valve and then remove the hose nut in order to repair. Cleaning the mesh with a soft brush and water is necessary. Salt deposits are eliminated by using a citric acid solution. Because dirt particles jam the movable element of the valve, it is not permitted to operate the equipment with a removed or torn filter.

Self-draining of water from the drum

The factory documentation states that the drain hose needs to be positioned above the tank’s liquid level. The housing’s back wall has hooks where the hose can be attached. Water will naturally drain out of the pipe if the clamps are broken and it is lying on the ground.

After a prolonged period of trying to pump liquid, an error message appears.

In this situation, you will need to raise the hose using the standard hooks or create your own clamps that are fastened to the wall using screws or double-sided tape.

Control or indicator board failure

If the code appears, there might be a problem with the firmware that was installed in the controller memory. To reset, unplug the device from the network for ten to twenty minutes. When the device is turned back on, the issue should no longer arise. The room’s higher than usual humidity level could be the root of the problem. When condensation collects on the electronics, it interferes with the control unit’s regular functioning.

Incorrect drain connection

The machine’s back wall must be crossed by the drain hose before it is released into the sewer drain. Kinks and twisting in the hose increase the resistance to flow; the manufacturer specifies the installation diagram in the instructions. Because there is still liquid in the drum, the error code is displayed.

Breakdowns requiring major repairs and replacement of parts

Following initial testing, if the washing machine shows an H20 type fault code, you should check the following steps:

• valve that regulates the water supply to the tank;
• a sensor that monitors the liquid level and controls the valve;
• central control unit, ensuring joint operation of electronics;
• wiring harness laid from the controller to the level sensor.

You must unplug the equipment from the water supply and sewage systems in order to do diagnostics. You have to disassemble the case partially in order to access the units. Sets of wrenches and screwdrivers are required. You should get in touch with the service center if the owner lacks the necessary skills to repair household appliances. The table shows the average service price (as of mid-2020) for the Russian Federation’s central regions, excluding the cost of buying replacement parts.

Type of repair work	Starting price, thousand. rub.
Diagnostics and installation of a new valve	1.6
Checking and cleaning the level sensor	1.7
Diagnostics and repair of the controller	2.0
Checking and restoring electrical wiring	1.6

The water inlet valve is out of order

You can change the flow rate by installing the water inlet hose on the valve nipple using an electromagnetic drive. The valve stops working if there is a short circuit, a break in the coil, or a corrosion-related jam in the rod. A valve with two actuators is used in certain Hotpoint Ariston washing machines. In the event that one of these units malfunctions, the apparatus does not use water when washing or rinsing. Installing a new valve is the only repair available; the rod or damaged coil cannot be made mobile again.

The pressure switch is faulty

An elevated liquid level in the tank and continuous pump operation result from a pressure sensor malfunction. Debris that has clogged the measuring tube or entered the sensor’s working chamber is the root of the defect (the hose or nipple may be damaged). The process of repair is clearing any deposits from the working chamber and hose before reinstalling the component in its original location. You can swap out the tube for a hose that has the same geometric measurements. It is essential to install a new sensor if the measures taken were insufficient to restore operability.

Problems with the electronic controller

Depending on the operating mode, the control unit, which is housed in the upper portion of the equipment body, controls the water supply. When a valve is functioning properly and the pipes are under normal pressure, the machine either doesn’t collect water or pumps too little liquid. This is caused by malfunctioning electronics. It suffices to turn off the power for ten to twenty minutes in case the software malfunctions (for instance, as a result of a power surge). After clearing the memory of the controller, functionality is restored.

Should the mistake recur, you ought to take off the case’s facing and examine the printed circuit board. It is not permitted to peel tracks or oxidize electronic components. In the event that flaws are found, the device may be repaired under service center guidelines. For instance, the triac that regulates the water inlet valve frequently fails. In the event that the unit is unsalvageable, a functional controller taken out of a comparable model washing machine is bought.

The wiring or contacts are damaged

We use a polymer to shield the wiring harnesses. Rats have harmed this material (a common problem in the private sector). The layer is also destroyed by mechanical loads from the outside. Finding exposed areas in the inlet valve circuit’s cable requires inspection. One possibility for the defect’s source is oxidized contacts. The technician needs to use heat-shrinkable tube or polyvinyl chloride tape to clean the contacts and replace the insulator layer. If repair is not an option, you can either buy a new harness or put together a wiring bundle by hand.

Error Code	Meaning
H20	The washing machine is having trouble filling with water. This could be due to low water pressure, a blocked hose, or a faulty water inlet valve.

Knowing why your Hotpoint Ariston washing machine is displaying the H20 error can help you avoid needless stress and save time. This error code usually indicates a problem with the water intake, which could be a kinked hose, a blocked filter, or a problem with the water supply in your house.

You can frequently fix the problem on your own and get your washing machine back in full operating order by looking into these common causes. To prevent more harm, it might be necessary to bring in a professional if the issue continues.

You can ensure that your machine continues to function effectively and extend its lifespan by performing routine maintenance and keeping an eye on its error codes. By keeping an eye out for any warning indications, such as the H20 error, you can keep your laundry routine running smoothly by addressing issues early on.

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