Ariston water heater DIY repair

In detail: do-it-yourself ariston water heater from a real master for the site my.housecope.com.

Today, various types of heaters have become very firmly established in our modern everyday life. Specialized stores offer products from well-known world brands, such as Ariston, for example. Despite the high reliability, any household appliances can fail over time for any reason. In this case, it will be useful to know how to carry out an independent repair of the Ariston water heater.

In the mid-40s of the last century, Aristide Merloni launched the production of electric water heaters under the Ariston brand (Successful). The name fully justified itself, and after a while all the sons of the entrepreneur successfully entered a similar business, and the youngest, Vittorio, inherited his father's company.

The Ariston company today is one of the three leaders in terms of global sales of household appliances, and Ariston brand kitchens are sold with already built-in basic household appliances from a refrigerator to a dishwasher. In Russia, this company became famous at the end of the 90s of the last century, and now almost every large city has its service center.

Ariston water heaters have a stylish modern design, excellent functionality, differ from analogues of other manufacturers by a reasonable price. Developers pay reverent attention product safety during operation: the units are equipped with various protection for all occasions, which turn off the product in the event of a power failure, overheating, or no water supply.

But this reliable technique suffers from the hardness of our water and the rather frequent drops, surges in voltage. The weakest points, according to experienced craftsmen, are tubular heating elements, a magnesium anode and a check valve. These very simple breakdowns can be eliminated with your own hands if you have the necessary minimum of tools. The design of the product has a standard scheme, so prevention and repair is not difficult.

Video (click to play).

The user should pay special attention to the integrity of the inner coating, where modern materials are used, which include titanium, silver strengthening enamels, glass ceramics and other high-tech additives.

Before disassembling the Ariston water heater for repair, it is necessary to study the design of the product, prepare the necessary tool, as well as various devices. To repair mechanical damage, such as water leakage, you need:

a set of keys or one small adjustable wrench;
a set of various adapters;
new non-return valve.

In the event of malfunctions with the electrical part, it is necessary to prepare multimeter.

Preparation also includes such work: disconnecting the device from the home electrical network, draining water from the tank.

The tank in the Ariston water heater consists of the following main components:

A heating element.
Thermostat - designed to control the set temperature, as well as to adjust the heating mode.
A relay that controls the switching on or off of the heating element.
Special anode - it protects the inner coating from corrosion.
Safety valve - regulates the internal pressure when heating water.
Signal lights in budget models (they should turn on when power is applied) or electronics for more expensive products.

The home craftsman should study the instructions in detail before starting prophylaxis or minor repairs in order to navigate freely.

According to statistics, during the operation of the Ariston boiler, the following typical malfunctions may appear:

no water heating - heating element burned out;
thermostat replacement required;
the magnesium anode has completely used up the assigned resource;
a large layer of limescale from the heating elements has formed.

In the event of these malfunctions, in addition to the second option, you need a complete disassembly of the product.

There is absolutely no difference what volume you have an Ariston water heater - 50 or 100 liters, the dismantling process will be identical.

Water heater thermostat Ariston

Every owner of Ariston water heaters should know that when replacing a thermostat, relay and safety valve no need to dismantle the tank. Water draining and complete disassembly of the boiler is carried out only during maintenance work and when replacing a burned out heating element.

Disassembly of the product is divided into standard steps:

Disconnect the water heater from the household power supply.
Drain the water tank.
Dismantle the flanges, access the inside of the water heater.

Before disassembling the product, you must make sure that it disconnected from the network: if the heater is powered by a separate line, then it is necessary to turn off the circuit breaker, if just through the cord, then simply unplug the plug.

Some readers may wonder: why emphasize these points so often? But statistics claim that during home repairs or when burnt-out parts are replaced, very often craftsmen who neglect safety precautions receive electrical injuries of varying severity.

Only after de-energizing, you can begin to dismantle the Ariston boiler with your own hands:

unscrew the cover, which is fastened with screws;
before starting dismantling, take a picture of the location so as not to confuse anything during assembly;
disconnect three-core cable, the first two wires - phase and zero were connected to the thermostat, so you can carefully remove it.

All work on the electrical part has been successfully completed, you can start draining the water from the tank.

If the initial installation of the water heater was carried out by a master from the service, then he should have installed special tee with a drain cock and screw the fitting into it. Quite a handy device - the user easily connects the hose, as shown in the photo, and drains the water into the bathroom. In the absence of a special device, water is removed by connecting a hose directly to the product's branch pipe.

Need to know! To balance the external and internal pressure, open the hot water tap.

Draining the water can take several minutes, if the capacity of the heater is up to 50 liters, and when you have Ariston for 80 liters, the wait will drag on for up to 30 minutes or more.

All modifications of products under the brand Ariston have an oval flange on which the shades are installed, a magnesium anode and a tube with a thermostat inside... Put on the flange body from below elastic rubber pad to ensure tightness. The flange is fixed with a U-shaped bar, which is fixed with a nut.

We unscrew the nut, carefully push the flange inward, turn it and remove it outward. Further, the failed parts are replaced and the surfaces are cleaned from salt and lime deposits.

Attention! Efforts must not be made when cleaning the boiler tank: over time, it becomes thinner due to the effects of corrosion. When carrying out preventive maintenance, it is advisable not to clean thin scale.

Remove excess debris at the bottom of the tank, visually inspect the rubber seal, if everything is in order, then do not change it - it is very expensive, and it is very difficult to get a new one. Dismantling and subsequent assembly can be done independently by any user without special training. We attach this video to help:

The operating statistics of similar heaters allows us to conclude: regular inspections of the wear of the magnesium anode, cleaning the heating element, prevention of the inner lining of the tank must be done on a regular basis, this will significantly extend the life of the product.

Many models of water heaters are equipped with an electronic display on which different error codes... You can decipher them using the instructions. Visually, the user can identify the following malfunctions:

the product does not turn on - the circuit breaker has tripped;
the water is very hot - the thermostat has burned out;
drips form at the bottom of the tank;
if when the product is turned on, the plug heats up - this is a signal that the power of the outlet is low.

Some users do not suspect that the boiler may not turn on for a reason burning contact in the socket, which indicates its low power or lack of grounding.

Any failure of reliable household appliances can provoke the following reasons:

The formation of a large amount of scale on the heating element.
Voltage surges in the electrical network contribute to electronics failure.
Reduced water flow due to clogged filter and non-return valve.

To reanimate the equipment, you will need spare parts, cleaning the heating element and flushing the inside of the tank.

Advice! In order for any brand of equipment to serve for a long time and properly, do not set the temperature above 60 0 C - this significantly reduces the process of scale formation.

Poor water quality is considered to be the main cause of boiler breakdown. Because of this, scale forms on the surface of the heating element, the inner walls of the tank are susceptible to corrosion, which in the future entails more serious consequences and expensive repairs in the service center. In addition, the water heater may stop working due to improper connection to the power supply and the hot / cold water circuits.As for the latter, when connecting the boiler, it is imperative to install a safety valve between the branch pipe coming out of the tank and the cold water supply pipe, which will protect the tank from rupture during a water hammer. You should also make the connection according to the instructions and, no less important, do not confuse where-what is connected. Sometimes situations arise that, if installed incorrectly, the water heater does not collect water. Please note that you should not panic in this case. It is better to take another look at how to properly connect the equipment to the pipes and, most likely, you will understand why your water is not collected.So that you understand how to repair a storage water heater in different conditions, then we will separately consider how to repair all possible breakdowns with our own hands.If the boiler does not heat the water to the required temperature, but still makes noise when turned on, it means that scale has formed on the heating element, which you need to clean yourself. This is not difficult to do, you just need to disconnect the equipment from the network, drain the water from the tank and disassemble the case to remove the heating element. You will not have any difficulties with disconnecting the plug from the outlet, but draining the water can make the repair a little more difficult. Immediately we recommend watching a video lesson, which shows a simple method for solving this problem:

After you empty the tank, you will need to disassemble the boiler yourself. To do this, carefully disconnect all fastons connected to the thermostat and unscrew the bolts, which are usually 6 pieces.

During the removal of the heating element, a little more water will pour out, which remains in the tank. It is recommended to clean the heating element itself immediately, before it is wet and the scale deposits have not hardened. We recommend using special cleaning agents that can be sprayed onto the heater. After a while, the deposits are effortlessly scraped off with a wooden spatula or even a blunt knife. Also, for repairs, you can boil the heating element in a bucket with the addition of special acid to the water, which will effectively solve the problem. To get rid of limescale for sure, we advise you to use fine-grained emery paper ("sandpaper") to clean the tubes to a metallic color.

Simultaneously with the repair of the boiler, which heats the water for a long time or weakly, it is recommended to replace the magnesium anode, which protects the tank from corrosion. To do this, dismantle the worn out rod and purchase exactly the same one in order to replace it yourself!

After that, you need to assemble the boiler in the reverse order and check whether it was possible to repair the weak heating of the water. Do not forget that first of all you must fill the tank completely with water, then connect the plug to the mains and start.

We draw your attention to the fact that there is a situation when the boiler does not heat the water, because the heater is broken. In this case, self-repair is that you need to ring it with a multimeter, setting the resistance measurement mode. We will tell you about this below!

If the light on the boiler is on and the water does not heat up, then it is likely that the heater, which we talked about above, is not working. It is quite simple to check it at home, you need to install the tester probes on the contacts of the heating element and see the resistance on the display. With a working heater, the resistance can vary between 0.4-0.7, as shown in the photo below. If you see "1" on the display, then there is a breakage and you need to replace the part with a new one, because it is almost impossible to repair it.

By the way, if the boiler beats with current or when it is turned on, the RCD turns off by itself, then the cause of the breakdown, again, is in the heater from which the leak occurs. You can check the malfunction by connecting one probe to the contact of the heating element, and the second to the tube itself. You will see “1” on the display, the part is in good order and there is no need for repairs, a minus value or too large - replacement is required. In more detail about how to check the heating element with a multimeter, we talked in a separate article.

Another reason why the boiler does not heat the water or, on the contrary, heats up very much, is the failure of the thermostat. You can check it in two ways - with a tester or a lighter. Everything is clear with the tester, you need to act according to a similar method, but as for the lighter, everything is more interesting here. First, dismantle the thermostat and press the button on it (it is circled in the photo below). After that, the copper contact of the thermostat must be heated. If after some time the button returns to its original position (knocks it out), the thermostat is operational. If the thermostat does not work, you can repair the boiler that does not turn off or does not turn on by replacing this part with a new one. I would also like to note that there is no need to drain the water to replace the thermostat on the water heater. It is enough just to disconnect the equipment from the network and disconnect all the supplied wires.

Also, sometimes there is a breakdown - the temperature is not shown on the display of the water heater or the display does not work at all. In this case, check all the elements of the circuit and if you do not find an open circuit, most likely the control unit has broken. You will not be able to repair electronics with your own hands in the absence of experience and knowledge, so you will have to take the electric water heater to a service center for repair.

If you notice that water is dripping from the boiler, it is not always possible to repair it yourself. It is good if the cause of the leak is the wear of the seal on the flange. In this case, the gasket must be replaced with the same size, which will allow the breakage to be repaired. The situation is much worse if the water heater leaks due to the wear of the tank itself. Some advise to glue or solder the holes, but, as practice shows, after a short period of time you will still have to say goodbye to the boiler, because such leak repair methods are extremely short-lived.

That's all I wanted to tell you about DIY boiler repair. We hope that now you know what to do if an electric water heater is leaking, does not heat the water well or does not work at all.These devices do not have many problems and you can get rid of them by timely maintenance of the system. At least once a year, check the non-return valve and clean the heating element so that malfunctions bypass you!

It will be interesting to read:

The problem of the periodic lack of hot water supply in apartment buildings and private houses can be easily solved with the help of water heaters. Among the popular models are Ariston devices, which are of good quality and relatively low cost. However, even high-quality devices can fail for one reason or another. This article will focus on the intricacies of the repair process for Ariston water heaters.

Ariston boilers are very popular all over the world. Water heaters of this brand are of good quality, but this does not exclude the possibility of breakage of any elements. First of all, malfunctions arise as a result of exposure to low-quality water with a large amount of impurities. The second negative factor is power outages, which can cause sudden surges in the power grid.

The weakest points in Ariston boilers, according to experts, are the heater (TEN), magnesium anode and safety valve. Breakdowns of these elements do not require special skill to fix them. It is enough to know the design features of the device and carefully follow all the repair instructions.

Malfunctions in the operation of Ariston water heaters are most often associated with the failure of certain elements inside the case. To fix the device with your own hands, first of all, you need to be able to properly disassemble the device in order to gain access to the broken parts.

Ariston electric boilers are of two types: flow and storage. Accumulative models have a tank with a volume of 10 liters or more, into which water enters. After the water in the container warms up to the required temperature, you can start using it. Flow models carry out instant heating of water and its uninterrupted supply through the tap, already hot. Such appliances are not equipped with water storage tanks.

Storage devices can be roughly divided into two categories, which differ in the size of the tank. Small-sized structures with a water capacity of up to 30 liters are usually installed in the kitchen. Such appliances can provide only a small amount of hot water.

For installation in bathrooms, models with a tank of 80 or 100 liters are mainly used.

Boilers with a capacity of 50 liters are also in demand, as they can provide hot water for 15 minutes, which is enough for taking water in the shower.

The most common breakdowns of storage-type Ariston boilers. Let's consider the design of such devices in more detail:

the device is equipped with an external protective case, which is most often made of stainless steel;
there are fasteners on the body that are designed to fix the device to the wall;
internal stainless steel tank, which is designed to accumulate water;
a heating element that brings the water to the desired temperature;
the thermostat is responsible for automating the process of heating the liquid by controlling its temperature;
an electronic relay ensures that the heater is turned off by a signal from the thermostat when the required water temperature is reached;

the magnesium anode plays the role of protection against corrosive formations;
a safety (safety) valve prevents the boiler from breaking down in the event of a sudden change in pressure in the tank due to water heating to a high temperature;
a tube with a splitter, through which cold water enters the tank;
there are several paws on the case, which shine when the device is turned on to the network;
control panel on the outside of the case, which is equipped with more expensive devices.

Before proceeding with the repair of equipment, it is important to accurately identify the cause of the problem. The most common problems encountered during boiler operation are as follows:

the water in the tank began to heat up very slowly;
the boiler emits uncharacteristic sounds, which can be expressed in crackling, squeaking and hissing;
The heating element heats the water to a temperature that is higher than the set one;
the water does not heat up and remains cold;
a container for water intake is flowing;
when the boiler is connected to the mains, the voltage indicator does not light up;
the voltage indicator light is on, but the device does not work, as the blocking is triggered;
the control panel has gone out or all the lights are flashing.

Long-term heating of water is most often associated with the formation of plaque on the heating element. The second reason may be out of order thermostat settings.

Abnormal sounds during operation of the device may be caused by failure of the safety valve. And also extraneous noises can occur if the tank is rusted and leaks, or a lot of scale has accumulated inside.

Strong overheating of the water is associated with a problem in the operation of the thermostat - the element is out of order, or the settings are out of order. If the water does not heat up at all, then the reason is related to the breakdown of the heating element. In the event that the boiler starts to drip, it is first of all recommended to carefully inspect the body of the device, as it could rust. If the tank has leaked from the bottom, this may be due to improper installation of the water heater.

Features of the repair of Ariston water heaters (Ariston): an overview of faults and the procedure for doing it yourself

The Ariston company has long been a respected manufacturer of household appliances, has an established positive image in our market.

Water heating tanks of this brand have a stylish design, have a good set of functions and an inexpensive price.

In the production of Ariston storage water heaters, special attention is paid to the safety of their operation, equipping them with residual current devices in the event of a power failure, overheating, frost protection and shutdown in the absence of water, which eliminates the risk of electric shock to a person.

The beginning of the disassembly of the Ariston water heater Despite the fact that the Italian company has been the world leader in the production of water heating equipment for more than a quarter of a century, given the quality of our water and the parameters of the electrical network, breakdowns are also characteristic of such reliable equipment.

Here the weak points of the steel: a tubular heating element, a check valve and a magnesium anode.

However, these are fairly simple breakdowns and they can be easily eliminated with your own hands at home with a minimum set of "garage" tools.

The Ariston storage tanks themselves have a fairly simple internal arrangement for repair or maintenance.

The reasons for the breakdown of the water heater are:

the formation of scale (corrosion) on the heating element, hard water speeds up this process several times;
unstable mains voltage leads to failure of the electronic control unit;
decrease in water flow due to the appearance of debris in the filter and the check valve on the water supply pipe.

To return the boiler to normal operation, you will need some spare parts and cleaning it, flushing the inner walls from solid salt deposits.

The main signs of malfunctioning:

the activation of the machine after turning on the boiler indicates a malfunction of the electric heating element, it can burn out due to the formation of scale on it or an elementary lack of water;
overheating of the water indicates a failure of the thermostat, the cause of its failure may be high humidity;
heating of the switching electrical equipment indicates an underestimated power of the outlet supplying the electrical wiring;
the formation of streaks on the walls of the tank and in its lower part.

Pay attention to the electronic display, which on many models displays error codes (a complete list of error decoding is indicated in the Operating Instructions for the device).

During the operation of the electrical appliance, the display, intended for the convenience of the user, may fail (the electronic display reflects the current parameters, operating mode). Here you may need to contact a specialist, although this breakdown does not significantly affect the operation of the water heater.

Read the article about the installation and connection of Termeks water heaters here.

Ariston water heater device. (Click to enlarge) To start an independent repair, you should pay attention to the features of its design and the principle of operation.

Typically, the tank includes the following functional units:

Heating element for water heating;
thermostat for control and monitoring of heating temperature;
relay that controls heating element on / off;
magnesium anode, which protects the tank from corrosion;
a safety valve that reduces the pressure inside the tank when water is heated;
electronic control unit (simpler models are equipped only with signal lights).

Replacing the thermostat, relay, safety valve does not require dismantling and disassembling the tank. Otherwise, be sure to drain the water from the tank. A damaged heating element will require disassembly of the boiler, but the Ariston water heater is very easy to disassemble.

You can do this yourself at home, following a certain sequence:

Disconnect the boiler from the mains if the heating element does not heat.
Shut off the cold water supply and drain the water heater.
Remove the protective cover and disconnect the wires (you first need to sketch the wiring diagram or take a photo of it, which will facilitate the reassembly process).
Unscrew the flange nuts with a wrench.
Place the container under the tank and carefully remove the flange with heating element and magnesium anode (its remains).
Clean and wash the inner walls from scale and dirt.
Install a new heating element and magnesium anode.
Assemble all parts in reverse order.
Before plugging into the power grid, draw water and check the tightness of the assembly for several hours; the tank should not leak (otherwise, the tank should not be turned on; a new gasket on the flange will need to be installed).

Read the article on how to disassemble and clean the Thermex water heater here.

When draining the water, you will have to suffer, if you have not bothered about this in advance during installation: two taps should be installed under the water heater - at the inlet and outlet of water from the tank.

And then the usual physics - when you open one tap, the water from the tank will not go until air takes its place. Therefore, a second valve is required to supply air to the system.

Watch a video in which an experienced user explains in detail how to repair an Ariston water heater with his own hands:

Water heaters "Ariston" are very popular due to the reliability and simplicity of the device. The device not only provides the user with heated water, but also improves the consumer's quality of water to some extent.

Instantaneous and storage water heaters differ, depending on the volume of the tank. Models with a tank with a capacity of 100 and 80 liters fully satisfy the needs for hot water for a large family. Models with a tank of 50 liters have an optimal ratio between the volume of heated water and energy consumption. Using this tank, you can shower for 10-15 minutes. Kitchen boilers are equipped with mini-tanks with a capacity of 15-30 liters and are mainly used for washing dishes.

The line of water heaters is constantly being improved, but even the most modern protective systems do not save from breakdowns. There are many reasons for the occurrence of malfunctions: drops in water pressure, power surges in the network, failure of electrical elements and other components of the device, improper operation of the device and lack of prevention.Topic of the article: do-it-yourself Ariston water heater 80 liters.

Hot water boilers "Ariston" comply with protection against moisture and dust according to the international scale from IP24 and higher. This means that mechanical failures are rare. The design is reliably protected from moisture. Only purposeful vandalism can disable the device.

Important! One of the main design features is the use of an enamel-coated stainless steel protective casing or external thermal protection.

The devices use 1-2 heating elements for the main and accelerated heating. As a rule, boilers "Ariston" are equipped with:

Silver coated, eco-protection system against microorganisms for water disinfection.
Enlarged magnesium anode, which helps purify water and protect the tank from corrosion.
Water distribution system in the tank "Nanomix" and built-in heat pump recirculation.
Electronic or bimetallic thermostat with temperature control up to 80 degrees.
Thermal insulation of the outer walls of the tank - polyurethane foam.
System of protective shutdown and electrical safety.

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If the repair of a gas appliance requires the intervention of a qualified specialist, then a home craftsman can also repair a boiler or an electric water heater.

Important! It is hardly worth undertaking the repair of the 80-liter Ariston water heater with your own hands, if the warranty period has not been worked out. The price of the boiler upon purchase also includes repairs from the specialists of the service center with a visit to the house.

The most common mechanical problems are tank leaks. Water drips or seeps out. The tank undergoes a special test before being sold. Its walls with a thickness of 0.6-1.0 mm are capable of withstanding a pressure of 16 bar. But over time, the material from which the tank is made corrodes. For this reason, leakage can occur through the outer polyurethane coating or metal walls.
Another reason for the mechanical failure of the device is the inflation of the tank due to the breakdown of the safety check valve. Breaking the sealing of the internal tank is the most costly of the breakdowns, since in some cases the device cannot be repaired and a new tank needs to be purchased.
It is much easier if the leak is observed at the bottom of the device (for example, at the flange connection of the heating element). In this case, it may be sufficient to replace the gasket with a better one. For example, foamed rubber or autoclaved rubber.

These are the lowest-cost malfunctions for Ariston boilers. The most vulnerable in the Ariston boilers are the following elements:

Heating elements.
Switches and sensors.
Bimetallic thermostats.

Important! To avoid damage to electrical components, experts do not recommend connecting the frame and zero slots, since this turns off the protective system that reacts to a short circuit or leakage current. The device is grounded with a separate insulating wire.

The lion's share of all electrical faults falls on heating elements. The appearance of hiss or noise, prolonged heating of water, activation of the protective shutdown system - all this suggests that the heating element is out of order or its bulb is covered with scale. On average, the heating element serves for about five years.

Important! It is necessary to periodically monitor the state of the magnesium anode. Despite the “electrical” name, the anode is not connected to the electrical circuit, but effectively protects the heating element and the tank itself from corrosion. If the anode is 50% thinner, this is the basis for replacing it.

To assess the condition of the heating element, you need to measure the resistance on its knife blocks. If it goes off scale “to infinity”, this is a signal to replace it. If the heating element is serviceable, then:

Its working capacity can be restored by immersing the heating element for 24 hours in a citric acid solution (50 g of citric acid powder per 1 liter of water).
At the same time, the tank is rinsed from mineral salts and scale.

After the new heating element is installed, measure the resistance between the case and the output contacts (its value should be at least 24 ohms). The heating element will last longer if you install a “dry” heating element.

Before starting the repair of the water heater, it is necessary to prepare tools and accessories. To eliminate water leaks will be needed.

Adapter kit.
Adjustable wrench.
Check valve.
If the water heater tank is out of order, a welding machine is required.

Important! To troubleshoot electrical faults, in addition to tools, you will need an ohmmeter or tester. Before repairs, it is necessary to drain the water from the tank, and disconnect the electrical part from the apartment power supply network.

Let's consider the most probable malfunctions associated with irregularities in the water supply system and its heating to the required temperature, we will figure out how to disassemble an Ariston water heater of 80 or 100 liters.

The algorithm for repairing the Ariston water heater with your own hands is as follows:

Inspect the water inlet and outlet hoses.
If the hoses are OK, then inspect the bottom of the storage tank.
De-energize the boiler, remove the bottom cover and thermostat. Remove the thermal insulation located at the bottom of the tank.
If leaks are detected at the connection points, install a sealant, additional seals.
If the storage tank is out of order, welding will be needed.

Important! You can also use "cold welding", but this will not give the desired effect for a long time.

First of all, check the presence of 220V voltage in the network. If there is voltage, then it is advisable to check the serviceability of the thermal electric heater (heating element):

Using a tester or ohmmeter, check the integrity of the cable with which the boiler is connected.
If the cable is working properly, measure the resistance of the heating element for direct current.
If there are no readings of the device, they begin to replace the heating element.

Important! Sometimes resistance measurements correspond to the operating state of the heating element. In this case, the water does not heat up due to a defective thermostat and must be replaced.

Regardless of what kind of malfunction was eliminated by you, the tank must be cleaned of debris and scale. Before connecting the tank to the mains, make sure that the parts are dry to avoid short circuits. When connecting the tank, do not forget to ground the storage tank.