Repair of gas columns with their own hands

It's nice to have the tap hot water and not spend extra money on your electricity bill. It gives pleasure to the usual gas column, which no longer requires spending, and with running hot water copes. That's just over time, and this simple technique fails. Although in most cases, repair of gas columns can be carried out on their own, without causing masters.

The overall design of the heater

Before embarking on a self-revival columns worth investigating the structure. Depending on the age of the particular model and additional functions are possible options, especially on the part of automation. But the basic elements necessary for the normal operation of the column, are not very different:

• The housing, which are connected to gas and water pipes. Functional load does not bear, it hides an internal heater device.
• Gas-node - is the "heart" of the column where the water pressure controls the operation of gas valves.
• Igniter and the main burner.
• The heat exchanger - tank with its encircling coils are generally formed of copper. Responsible for the transfer of heat from the gas burners water.

The principle of operation is simple: the water pressure at the faucet is opened shifts gas valve, and fuel is supplied to the main burner. In the pilot mode, it turns on an open flame or spark ignited automatically. The flame heats the heat transfer fluid exchanger, and that in turn - passing through the water. The combustion products are discharged into a chimney. And one has only to close the valve, and the gas supply is stopped.

An overview of the work of the heating column is enough time to diagnose the problem or future. Now we look at how to cope with the most common ones.

scum

The water in our pipes are not always pleased with the quality and cleanliness. Therefore, the heat exchanger may eventually grow a scum. As a result, water can not be heated to the desired temperature and may be supplied under a lower pressure. Another feature of overgrown pipes - frequent tripping or tripping failures column.

To avoid problems due to the emergence of scale is not sufficient to allow water heating above +60.. + 70 °FROM. To solve the domestic problems it will be enough, and hard water in this mode will not form lime "coat" on the internal surfaces of pipes.

It is not recommended to leave the igniter included since it, though not immediately, but can also heat the water until the critical scale formation temperature (+80 ° C).

If the build-up in the heat exchanger and pipes have already been formed, a gas heater repair their own hands will be easy to perform. To work needed:

• open-end wrench and a screwdriver;
• paronitovye pads (they work great at any temperature);
• descaling agent - Merloni, descaling or the other.

Before starting work, you need to close the valve on the inlet pipe water supply and open the valve and drain the remnants. Remove the fixture and the housing cover, and then disconnect the feeding tube of the heat exchanger (on most speakers it can be done on the key 19). Bleed about a liter of water, set the tube in place and pour into it as much descaling.

We remember the properties of communicating vessels, and take a long flexible hose, inserting a normal funnel into it. Once you put up the higher end of the radiator, under its own pressure fluid begins to flow into the tank of the heat exchanger. The facility will dissolve the scale for about two hours, but you can speed up this process, slowly warming the igniter system.

Check efficiency can include the water supply. Once through the tap liquid merge with the remnants of the scale, the pressure should be better. If not, repeat the cleaning process again.

Flow

Eliminate this problem by replacing the heat exchanger on the new rather expensive. Until a few years he will be able to work and after soldering. Usually he does not crack the tank, and braid the coil, so it is necessary to solder it.

Before starting work, the heat exchanger is best to completely release from the water to the tin-lead solder reliably gripped. To this end, the feed water is turned off, and then completely spun - water at this time down through the hot faucet. All the liquid will not be possible in such a way to delete, so you can vent the system using a small compressor.

The procedure works:

1. Sanding place on the coil leakage and degrease.
2. Mark soldering output power of 100 W to the heating temperature could provide about 180 +.. 200 ° C, and rosin (can replace aspirin tablets - they are too well with the role of the flux).
3. Molten solder is transferred to the place of rupture of the tube a continuous uniform layer. If you experience such a case, you can simply soldered to the patch 2 mm thick, so they'd be sure. Tube itself is also desirable to heat the second soldering iron or iron.
4. Similarly, cover all corroded places on the surface of the heat exchanger coil. Problem areas are clearly visible on the copper, as are green.

If the flow field formed in the threaded connections, it is easy to eliminate replacement gaskets. But we need to examine ourselves nuts, for example, in the Chinese model columns they often burst and do not hold the thread.

Refusals by the automation

Serious repair water heater may not be necessary, even if the equipment refuses to be included. Often the reasons for such behavior techniques are eliminated very simply:

• Clogged venthodov. Check traction in the ventilation shaft burning match - in normal operation the flame will pull air in its way. If even the fire, the chimney will need to be cleaned.
• Failure of the system name column avtorozzhiga generally difficult due to the discharge breakdown.
• The fall of the pressure in the feed water system: Column right, but the system pressure is insufficient to open the valve.

If you do not have enough water pressure for the normal operation of the heater, do not attempt to adjust the automation. It is better to get rid of the problem once and for all with the help of booster pump. It will provide the necessary pressure in the system. For home use use models with "wet rotor" as less noisy.

If the column "knocking" or when the stops almost immediately, this may be a result of poor contact of the thermocouple and solenoid valve. To restore normal operation of the heater you need to understand a little bit in electrical engineering. Contacts will have to be cleaned with the help of a fine-grained sandpaper or needle files.

If you already disassembled the column and made repairs, check the installed filters at water site and wash them if necessary. It is also possible to evaluate the state of the membrane in the gas-node, dividing it into two halves. Ideally, the membrane should have a perfectly planar undeformed surface. If not - it should be replaced with more durable silicone.

Important! A gas leak, which may be determined by the characteristic smell is eliminated only by one - and the valve overlap calling emergency responders.