How to remove, replace and check the heater heater

The heating element, or TEN, is the main unit of a water heater of any type. It is he who provides heating of the liquid, and most often fails. Calling a home master is expensive, therefore, having purchased the necessary list of tools, replacement of the heater in the boiler or a water heater can be produced independently.

What tools are needed to replace the heater

When starting to replace the heating element in the boiler, it is not recommended to do everything “on the knee”, as this can lead to the appearance of a new malfunction. And so that all actions are performed efficiently, you must pre-purchase the necessary tool.

The list of tools for repairing a boiler:

• Flat and figured screwdrivers. More than once come in handy in the future.

Screwdriver Set

• Set of open end wrenches. For household affairs, an inexpensive standard set from a Chinese manufacturer is quite suitable.

Standard Key Set

• Pliers. As well as keys, you can purchase a cheap option.
• A multimeter is a device for measuring voltage, current strength and resistance of conductors. The device is necessary to determine the health of the heating element.

Average cost multimeter

• Dry, moisture-absorbing rags.

The above tools and rags can be purchased at any hardware store. It should be recalled that for homework it is not necessary to purchase an expensive, professional tool, Chinese counterparts are quite enough.

The device and principle of operation of the heating element

TEN is a tubular heating element operating on the principle of high resistance. This means that it is made of a material that impedes the passage of electric current. Accordingly, there is a conversion of electrical energy into heat.

A heating element

The general device of the heating element: a metal tube of curved shape with a wire of a certain material. Metal with high resistance is used for the wire, this ensures fast and high-quality heating. Such metal is most often nichrome. The tube itself is made of carbon (as a cheaper option) or stainless steel.

The ends of the nichrome spiral are soldered to the output studs, which will then be supplied with operating voltage. So that the wire does not touch the walls of the tube, and there is no short circuit, the inner cavity of the heater is filled with an insulating filler. Then it remains only to solder the tube and give it the desired shape.

How to correctly and quickly check the heater

To check the heater, you will need a digital device - a multimeter. The multimeter is a small plastic case with a digital display and sockets for connecting test probes. The device is used to measure such parameters as direct and alternating voltage, current, resistance and capacitance (in more expensive models). With it, you can ring any TEN.

Checking the heater with a multimeter

Heating Element Test Sequence:

1. TEN is removed from the household appliance and lies on any surface. It is necessary to connect the measuring probes, turn on the multimeter and set such a parameter as resistance measurement.
2. Apply one probe to the first terminal of the heating element, the other to the second terminal. The marking of the probes does not play a certain role.
3. If the device shows a certain value, for example, 24 Ohms, this means that the heater is in good condition and it can be installed on the water heater.
4. If the multimeter shows 0, then this allows you to determine a short circuit inside the housing of the heating element.
5. If 1 is displayed, this is a signal for wire breakage inside the heater.

Even with a small value of resistance, the heater will work properly, but it will take longer to heat the liquid.

Change the heater in the "Termex" water heater

The manufacturer of household appliances "Termex" mainly produces horizontal boilers. Uses quality and reliable supplies. Therefore, replace the heating element in series - first you should purchase the original heater from the company "Termex".

Replacing the heater in the boiler

The sequence of replacement of the heater in the "Termex" water heater:

1. Disconnect the water heater from the power supply. Since the heater is faulty, accordingly, the water in the tank will be cold. Therefore, it can be safely drained, before that, shutting off the supply of cold water to the boiler.
2. We get the left (in horizontal models), or the bottom (in vertical models) protective cover. To do this, just unscrew the 4 screws. It should be remembered that for greater aesthetics, some home appliance manufacturers hide bolt caps under stickers.
3. Disconnect the phase and zero terminals from the terminals of the heating element. Also, the wires can be connected to the thermostat, they should also be undocked.
4. Loosen the screws holding the pressure flange and remove it. It must be removed carefully, as the gasket may be damaged. If the gasket is damaged, then a new one should be purchased.
5. After the user unscrewed the flange, you can remove the heater. Installation of a new heating element after disassembly is carried out in the reverse order.

The sequence of replacement of the heater in the Ariston water heaters

The company "Ariston" has been manufacturing water heaters for a long time, produces durable and high-quality models that will serve users for more than one year. The external and internal arrangement of Ariston water heaters is almost the same as Termeks. But many have difficulty removing the flange due to its oval shape.

The sequence of replacement of the heater in the Ariston water heater:

1. Switch off the water heater and drain all water from the tank. There is a simple way to do this: open all the hot water taps and open the safety valve. Make sure in advance that the outlet of the safety valve is routed to the sewer. If not, then the water will have to be drained into a separate container.
2. A protective cover is not provided for in Ariston models, but before removing the flange, it is necessary to undock the retaining strip, which is fastened with one bolt. The flange is not pulled out, but pushed into the boiler.
3. It is not possible to completely get the heater along with the flange, so it must be deployed inside the household appliance. When the flange is deployed, the heating element will be outside and it can simply be dismantled.

In addition to the non-standard flange, there are no problems with the replacement of heating elements in Ariston boilers.

What is a "dry" heater and how to replace it

Cylindrical "dry" TEN

“Dry” heating elements in water heaters from manufacturers such as Zanussi and Electrolux, it is installed in special flasks and has no direct contact with the liquid. Therefore, its replacement does not even require draining the liquid from the storage tank.

It is only necessary to remove the protective cover, the phase and zero terminals and unscrew the bolts that secure the heater. Replacing the heater, the entire structure must be returned to its original state.