No hot water gas stove

Can you use a gas water heater if it leaks

According to all technical standards, only fully serviceable equipment may be used. This is especially true for gas equipment. you never know what can happen. Therefore, it is strictly forbidden to use the water heater when water is dripping from it.

What can be the consequences of turning on a broken heater:

  • pouring the gas burner with water from the heating element. an explosion and gas poisoning;
  • Non-critical breakdowns, but still undesirable. the wear and tear of gaskets or leaking connections will only lead to more negative consequences and a large price tag for repair services.

If the gas heater leaks because the integrity of the water supply assembly is compromised. it simply will not turn on. The ignition unit and fuel valve are connected to the water system. No water. no work.

Why the gas water heater does not heat well, does not heat water at all

Gas water heater. one of the most popular options for water heaters in homes with a centralized supply of blue fuel. It is easy to operate, provides the possibility of obtaining an unlimited amount of hot water. Agree, its failure can not only make the discomfort, but also to disrupt the usual way of life.

An unexpected failure caught you at the most inopportune moment, you have lost your DHW and do not know what to do? We will help you find answers to your questions. in this article we will examine why the gas water heater does not heat water and whether it is possible to fix the problem yourself. Also talk about preventive measures, providing the material thematic photos and videos.

Typical breakdowns

Problems can vary among units from different manufacturers, many of which are characterized by certain malfunctions that appear over time.

  • “Astra”. does not turn on or turns on with several attempts, if the flow of cold water is inaccurately adjusted. The unit valve itself fails regularly. In this case, almost all who have purchased this speaker, point out that the main drawback is the lack of automatic ignition, which makes it necessary to keep the igniter on, which quickly stops working if you bump or move it.
  • “Ariston”. the water unit breaks, the membrane is easily deformed. Customer reviews are mostly positive, people note that the speaker lights up quietly, keeps the temperature well and has an affordable price range, as well as easily controlled.
  • “Oasis”. faulty burner, which needs to be replaced often, deformation of the membrane. Buyers are attracted by the price and design, but otherwise often say that the unit breaks down quickly, the batteries fail, the speaker itself almost does not heat water and requires frequent replacement of the water filter.
  • “Amina”. lights up and turns off several times before heating, the batteries quickly run down. Users note the combination of low price and good quality of the speaker, but they are not satisfied with the fact of frequent battery replacement. As a plus also note the presence of a special display that shows the temperature.
  • “Rossinka M”. frequently failing valve block, rapid clogging of the filter system. Reviews show that the speaker is slow to ignite at a low water pressure, the temperature of the liquid itself jumps when you switch the faucet to the shower, and the unit quickly goes out.
  • “Dion”. the body of the heat exchanger burns. There are almost no negative reviews, buyers are satisfied with the simplicity and usability, the design of the column, the security system and the fact that the unit can work long enough.

We can conclude that any gas water heater has its own shortcomings associated with its various parts, substandard manufacturing, direct negligence of the manufacturer and other reasons. Before buying, it is best to consult with experts or craftsmen in the manufacture.


Some models according to user reviews can not only fail frequently, but also carry a serious threat to life, so it is worth weighing the pros and cons.

Fixing a clogged burner

Unfortunately, the burners in gas boilers Neva and Oasis (as in many others) are prone to clogging. Most often this picture is observed in models with piezoelectric ignition. The cause of clogging is the accumulation of soot. It must be removed, for which the speaker is disassembled and the burner itself is removed from it. Any improvised tools can be used for cleaning. After cleaning the burner should be installed in place and checked. If there is a need, you can immediately clean the heat exchanger as well. its clogging leads to a loss of traction and deterioration of heating.

Why the column does not light up the above models, as well as the Neva Transit?

One of the most common causes of failure is that the device does not light. That is the water heater does not start heating when you open the tap. Let’s consider the possible options for failure:

Water pressure is less than the minimum allowable (for all Neva models).

It means that the device does not perceive the flow, because it is weak. On the technical side it looks as if the membrane changes shape from the force of water pressure. Deflection can occur as a consequence of inappropriate construction of the node. Gas water heaters allow you to solve the problem with the head of water with the regulator located on the device.

Why the gas water heater slams. it’s all about design

Now we will analyze the principle of operation of the installation and its parts, so that it is clear: what to twist, where to twist and how to do everything correctly.

Inside each gas burner there are: a thermo heater (or copper coil), a gas boiler and several sensors for adjusting the temperature, the degree of overheating and other functions. Also 2 water pipes are connected to the water heater: one for cold water (inlet) and the other for hot water (outlet to the faucets). The principle of operation of all gas-fired columns is as follows:

  • After the cold liquid enters the boiler, the safety valve is activated and the gas is released outside;
  • The igniter (electronic, mechanical, etc.) is triggered. д.), and the burner ignites;
  • As the fuel burns, the copper coil heats up. The whole procedure is controlled by sensors.

This is how the water in the heating medium is heated. Processed gas and steam is sent out through a separate ventilation system, and the operating temperature is set using a special thermostat located on the control unit of the unit.

Peculiarities of repair of old models

First of all, you need to determine why the flapping and noise of the gas heater when you turn on the water, and if all the above deficiencies have already been eliminated, and the flapping still persists, then you need to check the functional state of the product.

Let’s start with simple examples of equipment with wicks, which are used to ignite the combustible mixture.

In these models, a loud noise in the form of popping often occurs if the calculated parameters do not match the contours of the flame. Timely ignition of the burner does not occur if the size of the fire is small or too large. The cause of such a problem is considered to be a mechanical clogging of the nozzle holes. Through these holes a metered supply of gas is formed.

Old models of gas boilers break down. The cause of popping when switching on is most often clogging of the nozzle, the burner or the lack of traction

To eliminate the malfunction will have to carry out the following actions:

The main casing is removed to provide full access to all internal parts of the column. The block where the gas and air are fed (this structure is used by many manufacturers) should be disconnected from the pipe system. Next comes the cleaning of the nozzle. Most often a wire made of soft metal is used. This can be copper or aluminum

The procedure must be carried out carefully so that the calibrated hole is not damaged. Reassemble in the reverse order, paying particular attention to the integrity of the threaded joints and seals.

Nozzles can clog in the main burner. With this clogging, the inclusion is also carried out with a slam. When disassembling the device it is necessary to remember that some nodes and elements, for example, gaskets, valves, thermocouple, have low strength, so they must be handled very delicately.

Possible causes of a weak head

To understand why there is no pressure in the gas water heater, you should determine the main possible causes of failure. And also the factors that affect it.

  • Manifold power. Without it a good head is impossible to achieve. The problem occurs if the value is less than 8 kV. It must be 10 kV or more.
  • Blockages. If limescale and other substances accumulate in the pipes. the water does not flow. Therefore, the filters should be checked.
  • Scale formation. It can collect in the heat exchanger and transfer to the tubes. If water with detached pieces got into them. there is a clog.
  • Past maintenance work and neglecting the prevention of contamination.
  • appears because the filter is clogged. To solve the problem, you should pull it out of the heat exchanger inlet and treat it with a brush under a pressure of water. If damaged, be sure to replace.

  • Scale is formed. You can use “home” tested means for getting rid of dirt that will not damage the material. The most popular and effective is citric acid. If the hot water is bad it is not necessary to use aggressive special liquids for cleaning.
  • The pipe is blocked. Water is not coming into the pipe badly. To fix it, start the reverse flow of cold water.
  • Problem with the mixer. Small debris can enter. To solve it, it is recommended to check the filter and the rubber hose. And then check the hot water coming out of the faucet.

Each of the problems should be considered in detail.

The filter is clogged

The insides of the water heater are gradually contaminated due to the principle of the device. Build up of soot and carbon deposits due to heating by gas. Because of poor water quality, the filter is clogged. It slows scale formation by about 50-60%. However, it gradually clogs itself, falls into disrepair and even tears.

How to return the water pressure from the gas water heater, if the matter is the filter:

  • Remove with a stiff brush anything that has clogged the holes. It’s salt deposits, small pipe debris.
  • Rinse it with pressurized water. Then place in a separate small container.
  • Fill up with filter cleaner.
  • Leave it on for half an hour. During this time, all sediment will come off the walls.
  • Rinse under the flow to get water everywhere.

If the speaker is clogged, you should review preventive measures.

If the pressure is very weak, and the filter clogs frequently, you need to follow the rules:

Important! If possible, an automatic water softener should be installed.

Limescale in the heat exchanger

Scale in the heat exchanger of the gas boiler should not be cleaned mechanically. There is a risk of damaging the surface of the coil from the inside. This will cause a layer of scale to reappear.

What products are used for treatment:

  • Household chemicals and substitute improvised substances. Citric acid is popular. A similar result can be achieved by using vinegar diluted to 7%. After cleaning, the pipes are washed with an aqueous soap solution.
  • Calcium deposits can be removed by Silit or similar products.

Important! Hydrochloric acid must not be used. It will destroy the protective layer and lead to breakage.

What to do to avoid the formation of limescale:

  • Install a deep cleaning main filter on the water supply and poor water pressure will not be a frequent nuisance.
  • Buy a water filter to decrease the water hardness. It changes the chemical composition of the liquid. Reduces the amount of limescale by 40-60% and the head of cold water is not reduced.
  • Install a magnetic filter. It retains calcium salts.

How to clean the heat exchanger if the hot water pressure is lost:

  • Disconnect the tubes that carry the liquid. Unscrew the nuts with a special solution that helps with rust.
  • Pour a descaling agent into the heat exchanger using a funnel. For 0.5 liters of water you need 100 grams of citric acid.
  • Pour the water out in the morning. Rinse with clean liquid. Make sure the walls are clean.

Important! When using a special cleaner, it is worth making sure that it is suitable for all surfaces, even ceramics.

Of home remedies for descaling often use beverages such as Coke or Fanta. This is not desirable in the case of pipes. Soda is better to help refresh the kettle and is also not suitable in this problem. For the coil, it is more common to buy a Juke sprayer and orthophosphate acid.

Clogged pipes

The water pressure in the faucet is weakened if there is a clog in the tubes of the gas water heater. Correct the problem by reversing.


In order for the cold water back pressure to push the clog, you need to do a few steps:

Applying the secret may solve the problem of low hot water pressure in the kitchen. But practice shows that this problem occurs relatively infrequently.

Watch out! Working with fluids for cleaning pipes and other surfaces should be in gloves to avoid burns and allergic reactions.

Faulty faucet

Insufficient water flow at the faucet indicates a problem with the faucet. Low water pressure due to small particles of debris. It can be in the filter, the crane-box or a thin rubber hose. The problem can be solved by disassembling the faucet and a weekly visual inspection. You can remove the dirt with running water.

Important! If you often experience too little hot water, you should call a professional.

The faucet head is the device that opens and shuts off the water flow. It also controls the flow and adjusts the temperature.

Poor water pressure through the gas water heater. cleaning clogging folk remedies

If your water heater does not work the way it used to, most likely a huge clog has formed. Many people do not know how to fix it, so they just tolerate a weak pressure of hot water from the gas water heater. Of course, it is always a good idea to contact a master. But where to get an extra couple of thousand? That’s why we will eliminate the problem ourselves.

No Hot Water: Water Heater Troubleshooting

You can flush the gas burner with a solution to remove lime scale. If you can’t find it in stores, then there is a folk alternative. a solution of citric acid. The entire procedure should be carried out very carefully, so as not to damage the gas boiler connections.

How to independently flush the column from clogs:

  • The preparatory step: close the gas and water supply, disconnect all wires and drain the remaining liquid through a valve or faucet under the hot water.
  • Clean the strainer. It is located right at the beginning of the cold water inlet, before the gas heater. You can rinse it just under water or use a lemon solution if there is a lot of limestone.
  • During cleaning check the diaphragm. If there are cracks on it, this could be another factor in the poor hot water pressure from the gas water heater. Replace the membrane with a new one through the threaded connections. There’s no need to explain: twist what you see near the membrane.
  • Remove the copper coil. If threads do not yield to a wrench, lubricate the problem area with a universal cleaner, oil or other rust remover. After 10-20 minutes unscrew the heating element.
  • Next, the copper pipe is soaked in a pre-prepared solution: one liter of water with a packet of acid. The product is poured inside the tube and kept for about 10-12 hours.
  • After pulling out the heat exchanger, rinse with clean water and put it back in place. Check the integrity of the rubber gaskets. you can install new ones if the old ones are worn out. In fact, it’s better to insert new ones.
  • Check the water supply by unscrewing the taps.
  • You can check the tightness of all connections with soap and water: air bubbles will start to bubble up at the hole. Such place should be additionally tightened with a wrench or lubricated with silicone sealant.
  • That’s it, the job is done! Connect the gas heater and use it!

If a weak water pressure through the gas water heater bothers you constantly. the procedure is carried out regularly. And the standard is at least once a year. Citric acid is an inexpensive and effective repair option when the hot water pressure in a gas water heater is lost due to clogs or scale on the pipes.

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