Third-party sounds that the boiler makes not only indicate certain malfunctions of the system, but also create psychological discomfort. Why is the storage water heater noisy, people who have faced a similar problem often ask a question.
Causes of noise
There are two main types of water heating systems - flow and storage.
Instantaneous and volumetric water heater
Sales statistics indicate that the most popular type of water heaters, which are installed in houses, apartments, is an accumulative capacity with an electric heating element. Despite the large volumes (the most popular models are from 80 to 200 liters), this type of boilers consumes less electricity compared to flow systems. They have established themselves as reliable household appliances. But during operation, extraneous noise may occur. The boiler starts to whistle, buzz, hiss.
The main causes of noise:
- scale has accumulated inside the vessel, on the vessel walls and in the heating elements;
- imbalance in operation or failure of the bypass valve;
- improper installation or clogging of the water supply system;
- quality of running water.
To prolong the operating life, it is recommended to give preference to heaters with dry heating elements, which are placed in a protective flask filled with oil or sand. Among high-quality budget options, with an open heating element, Termeks boilers are distinguished.
Types of heating elements
Plaque inside the tank
Limescale is the main cause of many water heater breakdowns. If the plaque is more than a centimeter, the boiler starts to whistle or crack when heated. The danger lies in the fact that a large layer of plaque on the heating element is often the cause of its failure, in particular the appearance of a crack. That is why experts recommend cleaning the boiler at least once every 2 years.
The fact that the time has come for the preventive maintenance of Termex and Ariston boilers is evidenced not only by the characteristic noise, but also by the duration of the water heating. An additional guarantee of the correct operation of the water heater will be the installation of a filter. Especially if the water is hard (with a high content of magnesium, potassium) or its quality is unsatisfactory.
Scale on the heater
Bypass valve failure
The main purpose of this element of the system is to regulate the pressure inside the water heater. The design includes two parts: a check valve and a subversive valve. The first serves to discharge excess water during heating when pressure rises. The blasting valve prevents the outflow of water from the boiler into the pipes.
The violation of the operation of the heater Ariston, Termex, the failure of certain elements of the bypass valve is evidenced by the characteristic noise in the form of whistling, hissing at the time of supply of hot water. The part must be replaced if a breakdown occurs. In the event that it is clogged, remove and clean.
Sometimes, along with a characteristic sound, water drips from under the valve. The reason may be increased pressure in the water supply system (more than 7 kg), you need to install an additional gearbox. Or a faucet leaks in the bathroom, sink.
Bypass valve
Characteristic noise occurs if the bypass valve or boiler filter is clogged. The part must be dismantled, cleaned.
Additionally, the bypass valve controls the pressure drop in the pipes. For example, when neighbors turn on cold water, a noise effect may occur.
Over time, due to mechanical wear and tear, fluctuations in water pressure, the integrity of the gasket at the installation sites of the heating elements is violated. This can also cause the boiler to start making noise. Usually, water begins to leak at the same time. It is necessary to disassemble the water heater and replace the gasket.
Boiler gasket
Malfunction in the water supply system
Noise occurs when the plumbing system is improperly installed or if it is clogged.
In apartment buildings, repairs are carried out individually. Often, neighbors use different types and diameters of water pipes. This can provoke a hum in the pipes, including those going to the water heater. Water flow is disturbed, pressure drops occur. Similar system installation errors can be made when piping directly in the apartment.
Scale particles accumulate, clog pipes, which leads to pressure surges, disruption of the water flow. A characteristic noise indicates such failures, most often in the form of a hum with a whistle. There is a similar effect in the case when the valve is partially closed. To solve this problem, just adjust the tap or replace it if it does not work.
To restore the water supply system, to neutralize noise effects, it is better to invite a specialist. He will make a diagnosis, determine the cause, and eliminate it if possible. Partial replacement of certain sections of the water supply is made, an additional filter is installed on the boiler.
Tap water quality
The working condition of the water supply system and the operation of the boiler in many respects depends on the qualitative characteristics of the water. It contains a certain amount of harmful gases (carbon dioxide, oxygen, hydrocarbon). Along with mechanical, biological treatment, degassing is carried out.
If it is done poorly, then in water there is an increased concentration of these elements. At the moment of heating the water heater, the gases begin to rise, and the boiler makes a noise. Gases dissolved in water cause corrosion of the metal parts of the boiler.
You can deal with a similar problem if you install filters.
Types of filters
They will protect the boiler from the ingress of finely dispersed impurities, scale, and, as a result, the occurrence of noise effects.
The following types of filters are installed on water heaters, an introductory group of a water supply system:
- Rough cleaning. Mechanically weighed particles are captured (up to 1 μm).
- Fine cleaning. Ion filters are additionally cleaned of small particles of impurities, including metals. Membrane (osmosis method) additionally neutralize chemical impurities.
- Cleaning systems using various adsorbents (physicochemical method).
The most effective combined types of filters with multi-stage cleaning.
Water filters
Conclusion
Various kinds of noise arising during the operation of the water heater indicate a malfunction of the system. Diagnosing the causes will help to find the right solution to eliminate the causes of a malfunction, and will eliminate unpleasant noise effects.
Preventive methods for eliminating such problems are the installation of filters, periodic cleaning of the boiler.
Violation of the rules, installation of a heating system and water supply, also provokes malfunctions, leads to noise during operation of the water heater. The elimination of such errors is best entrusted to a specialist.
A microcrack in the tank body; TENE is a complex breakdown of a water heater. The problem is not only in the characteristic noise, whistle, but in the fact that this creates a rather dangerous emergency. If such a failure is detected, you must immediately turn off the household appliance. It is better to replace the heating element, rather than trying to solder it, if it was operated for a long time.Repair or purchase of a new boiler depends on the degree of damage to the housing.
