Why does the geyser slam when you turn on the water? Main reasons

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It’s hard to find a real craftsman during the day, but the gas heater turns on with a bang and never stops. Unfortunately, the problem is common and simply does not interest experienced specialists - they have more important things to do. But what should we do? That's right - fix the problem yourself. In this article we will tell you why a gas water heater makes a loud noise when turned on and how to deal with it.

Why does a geyser slam - it's all in the design

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

Inside each gas burner there is: a thermal heater (or copper coil), a gas boiler and several sensors for adjusting the temperature, degree of superheat and other functions. Also, 2 water pipes are connected to the column: one for cold water (to the inlet) and the other for hot water (to the outlet to the mixers). The operating principle of all gas dispensers 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 and the burner lights up;
• As the fuel burns, the copper coil heats up. The entire procedure is controlled by sensors.

This is how the water in the coolant is heated. The processed gas and steam are sent through a separate ventilation system, and the operating temperature is adjusted using a special thermostat located on the unit control unit.

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Why does the geyser turn on with a bang - the most popular problems and their possible solutions

The reason for the popping sound when the gas water heater is turned on almost always stops at one thing - an excessive amount of gas accumulates before ignition. But there are a lot of problems why this happens. Let's look at individual situations why the gas water heater bangs when turned on.

Lack of traction

It's simple, the main thing is to know basic physics (at school level). When a gas boiler heats its fuel to water, the remaining or excess fuel is discharged through the vent nozzle. Usually this is not difficult, and the column itself copes with the task.

In cold weather, everything seems different - the decay products of gas and oxygen are already cold, before reaching ventilation. When they cool, they remain below, right in the column body, and combustion products (in the form of soot and burning) actively settle on the chimney.

Active accumulation of garbage from the street can also become a problem. You can remove it yourself or hire a utility service. Therefore, the gas water heater slams when turned on and it does not stop.

We offer you a great way to check the draft in your boiler yourself: light a match and bring it to the chimney.When the draft is normal, the flame of the match deviates to the side or it may go out. The fire stands straight, like a soldier on a parade ground - there is no traction at all, and an inspection needs to be carried out.

Very often, the gas water heater ignites with a bang when an active hood and compressor are placed nearby. When the column is in operation, it may accidentally “grab” exhaust gas. In this case, always turn off the hood while the boiler water heater is operating.

Also, weak draft is affected by the lack of ventilation of the room (all windows are closed), especially for metal-plastic inserts. There is simply not enough oxygen entering the room, which is so necessary for gas combustion. Open the window or do a little ventilation near the column - the device will work like a clock.

Reason 2 why the geyser slams when you turn on the water - the batteries are simply dead

If you have been using a column with electronic ignition for a long time, then you should definitely know that batteries are used for the igniter. This is much more profitable than causing combustion using mechanical toggle switches. Replace the batteries often enough and everything will be fine.

If the battery is new, then it has enough energy for quick ignition. Over time, the startup time of the system increases, but you can’t tell anything about the gas - it’s already being conducted to the copper coil. In just a couple of seconds, so much gas is accumulated that when ignited, it makes a bang.

If you open the hot water tap and the boiler does not work, you need to change the batteries. After this, in 90% of cases the column continues to work actively and does not show any problems.

We recommend getting rid of cheap batteries, as they do not hold their charge at all.It is better to buy batteries that can be recharged and from a more expensive segment. You will be surprised how much your device's productivity will change.

The holes of the burner itself are clogged - reason No. 3

This is another favorite problem, why the geyser slams when the water is connected. If you definitely notice uncharacteristic noises or the water hardly warms up, disassemble the column and clean the burner holes with a thin wire. There is no need to dismantle anything.

It will also be easy to clean the base of the burner - take a soft brush and wipe the part. After this, the boiler will work like clockwork. That's what not servicing your device on time does. And it doesn’t matter whether it’s a burner or a TV, you always need to take care of the equipment.

It is also worth remembering that without the proper knowledge, experience and tools, it is better not to do anything at all. Entrust the task to a professional. Well, if it’s not there, follow our instructions and do everything very carefully and one step at a time.

Why does a gas water heater make a loud boom when starting up - less common moments

We're done with the main points. But there are others that can be found in one person out of ten - they are also worth touching on a little. Of course, this situation needs to be resolved the sooner the better:

• The spark plug is in the wrong location. When the burner operates for a long time, the spark may be knocked down a little, and it will not reach the fuel. Solution - open the device body, find a candle, unscrew it and place it closer to the burner.
• Low quality fuel. This problem happens regularly when gas with impurities is passed through pipes. You can't do it without clapping. You can ask your neighbors if they use gas-powered appliances: if the problems are identical, then your work ends there.Well, you'll have to wait for normal fuel to be supplied.

Deformation of the device body. The steel case is sometimes not as durable as we would like. Especially when exposed to a burner. You can fix the dents yourself, just don’t overdo it by bending the dents.