The gas water heater does not ignite: causes and solutions

Malfunctions in the operation of household appliances negatively affect a person’s quality of life. It is especially unpleasant if the gas water heater does not light , because then there will be no hot water in the house, you will not be able to bathe, wash or wash the dishes. Malfunction occurs under the influence of various factors. Most of them can be identified and eliminated without the help of a specialist.


Some geyser breakdowns do not require calling a specialist Source telegraph.co.uk

The main reasons for equipment startup failure

To determine the malfunction, it is necessary to analyze the operation of the equipment. The following phenomena are considered the most common:

  1. Gas pressure indicators do not meet technical requirements.
  2. The appearance of blockages.
  3. Electronics failure.
  4. Lack of spark from the piezoelectric element or breakdown of the igniter.
  5. Water pressure is too low.
  6. Diaphragm failure.
  7. Malfunction of the smoke removal system.

Working geysers operate without noise and should operate within a few seconds after the water opens.

Gas pressure indicators do not meet technical requirements

Insufficient gas pressure in the pipeline is accompanied by malfunctions of equipment powered by blue fuel. You can check this by turning on the stove. If the gas pressure is low, you need to contact specialists and report the problem, since independent repairs can lead to tragedy.


In case of complex breakdowns and discrepancies in characteristics, it is imperative to call professional repairmen Source dnevnik.hr

Blockages

It is advisable to equip the entrance to the column with filters, since the water contains mechanical impurities that can damage the equipment. Gradually, salts settle on the filters, preventing the passage of liquid. This leads to the fact that the gas water heater does not light up.

To correct the situation, it is necessary to eliminate the contaminants accumulated on the filter or install a new one.

If the column is many years old, then blockages occur in the heat exchanger or tubes. You need to check the water unit and find out the level of passage of the elements. Special reagents help remove blockages; after flushing with them, the functionality of the device will be restored.

If dirt has accumulated in the burner, it is necessary to disassemble the column and remove the part. After cleaning, you need to put it back in place and check it.

Electronics have failed

The successful operation of modern devices depends on electronic units and sensors that regulate various processes inside the units. If one of these elements fails, the device will malfunction. Because of this, the electronics will not allow ignition. Repairs in this situation are difficult to carry out independently for those who do not understand electronics.


The electronic board of the geyser is also responsible for protection - it is better not to even attempt to repair this unit yourself Source prom.st

Problems with the piezo element

The column does not light up when the water is turned on in the following cases:

  1. The piezoelectric element and electrode have failed or become dislodged. In this case, the piezoelectric element remains turned on for 30 seconds, and after that the wick turns off. Replacing the unit will help restore functionality.
  2. The device cannot be ignited if the user does not follow the manufacturer’s recommendations regarding the operation of the equipment. Before pressing the power button, you must press the gas handle for 10 seconds. There is a safety system installed inside the water heaters that prevents the supply of gas until the igniter is sufficiently hot. If the device does not turn on, although there is a spark, you need to read the manufacturer's recommendations.

To replace or adjust the piezo element, you need to have special tools and skills. Therefore, it is better to seek the services of a specialist.


Piezoelectric element of a gas horse - the spool is small, but expensive Source samaraclimat.ru

See also: Catalog of companies that specialize in autonomous gasification of country houses

Igniter failure

Equipment malfunction may be associated with the following problems:

  1. Low batteries. Then the spark fires, but due to insufficient power it cannot heat the burner. This is the main reason why a battery-powered gas water heater does not turn on. The first thing to do is replace the power supply.
  2. Hydrogen generator breakdown. A hydrogenerator is a turbine that generates electricity when water moves. This element is highly sensitive to the condition and pressure of water. If it doesn't work, you need to inspect it for deposits. To stabilize the pressure, you should use special pumps.
  3. Failure of the power supply. There is no spark if the power supply fails. This is possible due to oxidation of contacts and swelling of resistors. If you have the skills to work with a soldering iron, you can handle the grinding yourself. Usually, they prefer to install a new power supply, because its breakdown is the main reason why a gas water heater with automatic ignition does not light up.

Good batteries for the speaker will last 6-8 months. After this period, the device will malfunction.

Beginning of work

Before turning on the BOSCH geyser, you need to make sure that the gas and water valves are open. To understand how to light a Bosch gas water heater, you need to determine what type of ignition it has. You can find out what kind of ignition your water heater model has in the operating instructions.

There are three ways to ignite Bosch speakers:

  • Piezo ignition. It is used in such Bosch models as WR 10-2P, W 10-2 P, WR 13-2P, WR 15-2 P.
    You need to press the power adjustment slider on the front panel, and at the same time press the piezoelectric ignition button from below. After a few seconds, the wick lights up, you need to release the slider and select the desired power level (to the right - more heating).

    Then the water supply is adjusted using the knob on the right. This type of ignition is called semi-automatic.

  • Electric ignition. Used in the following models of Bosch water heaters: W 10 KB, WR 15-2 B, WR 10-2 B, WR 13-2B. First of all, you need to install two “R20” batteries with a voltage of 1.5 V into the battery compartment at the bottom.
    There is an LED on the front panel that indicates the charge level. After installing the batteries, press the power button on the speaker.

    In order for the water heater to work, just turn on the hot water tap.

  • Hydro turbine. Installed in Bosch WRD 13-2 G, WRD 10-2 G, WRD 15-2 G models. In this case, the column ignites automatically due to water pressure. To get started, simply open the tap and, if the water pressure is strong enough, the water heater will automatically start working.

Video description

Where to start repairing geysers - the simplest causes of breakdowns are shown in this video:

Water pressure too low

The requirements for the operation of gas equipment indicate under what conditions the device can be operated and what is needed for its normal operation. If the pressure is weak, the water heater will not turn on and this does not mean that it is out of order. The problem is related to non-compliance with technical conditions. To normalize operation, you can use a storage tank and a booster pump.

In automatic heat generators, the water unit does not work at low pressure. This is due to the peculiarities of the structure and operation of the element. There is a membrane in the inner part. It divides into two cavities, inside one of them there is a rod that is responsible for regulating the gas supply. In order for the rod to move, the membrane must press on it. If the water pressure in the pipes is low, the rod remains motionless and there is no spark, therefore gas is not supplied to the burner.

Fault prevention

What should I do to ensure that the water heater works as long as possible and there are no problems with ignition? Most problems with the ignition of a Bosch column can be avoided by following operating and safety rules.

Here are the main ones:

  1. When installing a Bosch geyser, it is important to consider the presence of a good chimney and ventilation in the room. Be sure to open the window slightly while the water heater is operating.
  2. Regularly carry out inspections and checks of traction force, filter contamination and radiator cleanliness.
  3. Do not mix cold water with hot water.
  4. Do not load the column as much as possible. Bosch speakers can heat water up to a temperature of 68 degrees. But for use at home, 30-45 degrees is enough. High temperatures sharply reduce the service life of the column and contribute to its rapid contamination with soot.
  5. Install additional water filters at the inlet to reduce clogging of the water heater system.

No annual maintenance

No. 4.
IGNITER CLOGGED.
To ignite the main burner, an igniter is built into the design of the gas water heater. Small dust particles are sucked into the device along with the air. They settle on the inside of the tube and narrow the gas passage. The combustion decreases, as a result, the flame goes out after the button is released and the column stops lighting. In this case, the tube is purged with air and the ignition electrode is cleaned with sandpaper.

It is a mistake to think that the reason why a gas water heater stops igniting is the accumulation of soot on the copper radiator. Soot interferes with heat exchange between the fire and the coolant, reducing efficiency. But it won’t hurt to clean it.

No. 5.
MEMBRANE WEAR.
The membrane is a consumable item and must be replaced during the maintenance period. Neglecting this service will lead to natural wear and tear, a crack will appear and the operation of the column will be impossible. Replacing the membrane is not difficult even for an amateur.

When performing replacement work, pay attention to the strainer. It is installed when water enters the block and serves to retain rust and debris. A clean filter is the key to proper operation of the water heater.

What to do if the speaker does not turn on

If the failure of the dispenser to work is caused by low pressure in the water supply system, then it is necessary to determine whether this is a temporary phenomenon or whether the pressure in the pipeline decreases systematically.

If pressure drops in the system are frequent, then you can install a pump in the apartment that increases the water pressure or replace the dispenser with a model that is more suitable for the operating characteristics of the water supply.

There are also models of geysers with a water pressure control lever. This model will be useful if the pressure in the tap is good, but not sufficient for the normal functioning of the dispenser. Using the lever, it will be possible to “adjust” the column to the existing pressure. Which option to choose depends on the financial capabilities of the apartment owner.

The membrane often becomes deformed after 2-3 years of equipment operation. Change the part if it has mechanical damage (for example, tears), is elongated in shape in one direction. You can inspect the condition of the membrane by removing the cover from the water intake unit. It is better to replace the rubber membrane with a silicone one: the second one has a longer service life.

To understand how clogged the filter is, you need to:

  1. Remove the water intake unit from the equipment body;
  2. Disassemble the block by unscrewing the nuts;
  3. Inspect the filter cells for contamination.

You can clean the filter with strong water pressure. Before carrying out any repair work, the water and gas supply to the equipment should be shut off.

The automatic gas water heater does not turn on: troubleshooting

An automatic gas water heater is equipment in which ignition occurs automatically when the water is turned on. Such speakers operate from built-in batteries (batteries, accumulator).

The most common reason for column failure is the discharge of the nutrient element.

Contrary to manufacturers' statements, the service life of batteries rarely reaches a year: batteries have to be changed more often. You can easily do this with your own hands. To make sure that the batteries or accumulator are discharged, you should check the on and off key to ensure it is working properly. When choosing batteries, it is better to use the manufacturer's recommendations.

To replace batteries you need to:

  1. Remove the container with batteries (often located in the lower right part of the column) by moving the lower lever and prying the container with your fingers;
  2. Remove the batteries and replace them with new ones, taking into account the polarity;
  3. Insert the container into its proper place (press until you hear a characteristic click);
  4. Return the lever to the same position.

What to do if the geyser does not turn on when you turn on the water (video)

A geyser is a popular water heating device, which, like any other, is susceptible to breakdowns. The reasons for the failure of gas water heating equipment are often associated with wear of the elements of the water receiving unit of the dispenser, low pressure in the water supply system, and discharge of nutrients. Most problems of this kind can be eliminated without the involvement of specialists. The main thing is to correctly identify the malfunction and carry out any repair work, having first turned off the water and gas supply.

Problems with the operation of basic household devices that a person needs to use almost every day can cause him a lot of trouble. One example of this is a situation when the gas water heater in the house does not light, blocking access to hot water.

The reasons for such a malfunction are quite varied and not always obvious. Fortunately, most often you can identify and fix them yourself, without calling a specialist.

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