estimated BusinesStat today in Russia is used about 22 million. Domestic hot water heaters, and by 2014 their number closer to 25 million. It is a lot, is not it?Many of these water heaters are not the first year, and for the owners, sooner or later the question will arise of repair.What is to be done?Calling the master of the service center?Perhaps it is the easiest and most expensive way to go.
can go the other way, iewater heater repair their own hands.How is it done?Not so difficult as it seems at first glance, carefully read the purpose of basic elements, armed with the necessary tools and, following recommendations from the article, proceed to repair.
- design and the basic elements of water heaters Repair
- heating elements
- Faulty thermostat and thermostat
- Other faults of electric water heaters
design and the basic elements of water heaters
Let's look at the basic elements of electric water heaters as the cumulati
So, if we have to, for example, Ariston water heater repair memory type, we need to know its main components.This will help us to picture above, all of her elements are identified and named.To repair the water heater Thermex own hands, we have a closer look at their purpose in the boiler:
- thermostat or sensor that tells us the temperature of the water in the tank, it is more for the convenience of the unit, asusing the arrow always easy to determine how much hot water we have.It may be configured as a scale with an arrow and a digital indicator.There is no difference, it's not for everybody.If this part fails, the boiler will still function as before.Is that the temperature of the water, we do not define.
- insulation, its purpose can be seen by name - maintains the temperature of the heated water.Damaged it can not, therefore, dwell on it will not focus.
- tube for hot water outlet.With it there is no problem, even if not carried out maintenance of the water heater, it is unlikely that it will clog.The upper edge of the fence is high enough.
- outer shell, is as plastic and metal.The housing may also combine in their structure both types of elements.Bring useless body can only either intentionally or dropping the boiler.
- inner stainless steel tank.Its thickness is 1 - 2 mm, i.e.rather thin.The main cause of failure - electrocorrosion.If the tank is a quality maintenance with the replacement of the magnesium anode regularly, as a rule, it is long and raises no objections.
- heater - heating element from its power will depend on the rate of heating water in the tank.Since a number of reasons (permanent work, electrocorrosion) this element of the fastest crashes and requires a water heater repair.
- magnesium anode, near Tan.The main function - protecting the tank and heating element corrosion.It requires periodic replacement, if it is carried out regularly, your boiler will last much longer.
- cold water supply pipe, here, too, everything is clear, it does not cause problems.
- thermostat allows you to automate the heating of water.There are three types of thermostat, which are used in domestic heaters, this rod, capillary and electronic.Their principle of operation, despite the different construction is the same.The temperature sensor senses the temperature of the water and turns on / off thermostat that their contacts closes or opens the supply circuit of PETN.The temperature regime of a user manually with the handle or button.Typically used two thermostats, one controls the heating of water, the second controls the correct operation of the first thermostat.In the more expensive water heaters used three thermostat controls the serviceability of the third heating element.In case of failure this element changes completely.
- Isolation pads, the figure is not marked, but nevertheless, this is a very important part of the design.Carry out two functions: sealing and electrical protection.It is located at the junction of the storage tank with a flange on which the heating elements are arranged and the anode.For trouble-free operation of the boiler must be replaced each time a new service or repair the heater.
addition to the above, some water heaters equipped with electronic circuits for monitoring and control.Failure of the boiler will not work, but it has need of repair at least a basic knowledge of electronics.If they are, in most cases, you can repair the water heater Ariston hands.Description of operation of the electronic circuitry and methods for repairing no plans of the article, perhaps in the near future, and we consider it.
Block diagram of the "ordinary" boiler
If a problem in the electronic board, it can be avoided and the boiler will operate.As can be seen from shemki, board power supply circuit is connected in parallel heaters.If desired, and the availability of basic concepts in electrical engineering, you can turn it off and connect the circuit as in the conventional water heaters.But if these skills you have, or are in doubt in the success of his plans do not start experimenting.
scheme of inclusion of the boiler with an electric plate, designated by the numeral 6.
Other designations: 1 - Control thermostat;2 - control thermostat;3 - on lamp of the heating element, the light that glows when the heating of water;4 - heater;5 - grounding.
device instantaneous water heaters is almost identical to that described above.The main difference is the lack of storage tank and more powerful heating elements.Therefore, consider the instantaneous water heater units and repeat, we will not.
repair heating elements
heater repair vodonagrevatelley Real
heater is plugged in, but the light display of electrical heating element is not shining and there is no hot water?Then, the procedure for determining the fault:
- Take combo meter (tester), set on a scale measuring the voltage of 220 - 250V and measure at the terminals of the cable connections and thermostat, if the voltage is normally directly measure the potential at the terminals of PETN.If the voltage at the terminals of the heating element normally is likely faulty heater itself.
- Turning off our water heater from the mains and set the tester on a scale measuring the resistance (ohms), disable our heater thermostat (in most models is quite a simple procedure - remove terminals with wires, so that the ends of PETN were "naked").To measure the resistance at the terminals of the heating element, the accuracy is not important to us, it is not the motor winding.If the item is defective, the device will show us a certain amount of resistance, if the evidence is not - remove the heater and go to the store for new, it is not subject to repair.For more details of how to replace the heater in the water heater, you can from the article on our website.
this procedure in determining the fault of the heating element is identical for all types of water heaters, as the flow and storage.
Faulty thermostat and thermostat
Symptom thermostat and thermostat is the lack of inclusion of PETN in the presence of voltage and if there is an operation control thermostat.To verify that the thermostat we have to take it off as - You can learn from the article, which describes how to install and repair water heaters, it is on the website.
So thermostat removed.Take the unit, put on the measurement of resistance (ohms).The position adjusting knob to set Max and measure our contacts in the thermostat (I / O).If our tester does not react - the item is defective, it is not subject to repair.You will need to purchase and install an analog thereof.
If there is a control operation of the thermostat, then the procedure for determining the fault.We put a shot thermostat to Min and fix probes device contacts, if you are not alone - let someone - that hold.Take a lighter and warm flask / rod thermostat.If it is OK the picture is as follows: the thermostat is triggered and opens the circuit, the resistance at the terminals must tend to infinity, that is,such as if the probes are diluted in a hand appliance.If this does not happen - the thermostat to the scrap, go buy new, becauserepair of the element can not be.
Other faults of electric water heaters
The most common malfunction in addition to the electrical components of the boiler is leaking.There may be two reasons:
- flow tank;
- flow from under the flange, which provides attachment PETN.
reasons caused by leaking tank may be missing ground (which accelerated galvanic corrosion), lack of proper maintenance, normal wear and tear.
Repair the tank is not possible for the following reasons:
- outer casing and the tank is almost inseparable, dismantle, so that would not damage the shell is almost impossible;
- inner tank is usually made of stainless steel with a thickness of 1 - 2 mm, or in more expensive models are made of copper, in rare cases, it is made of plastic.With the latter very little that can be done.With tank of copper can still be tricky and try to solder, but as a rule, such tanks is very durable due to high resistance to corrosion.Weld as a thin stainless steel at home can not really tell, so do not waste time and energy.
- to all other modern tanks coated in water heater - vitreous, when welding it is damaged.At home, repair it is not real, and therefore flow in the near future is inevitable.
only way out of this situation is the replacement of the inner tank with a new one if your model allows such a change, and in addition, if you find its counterpart.But it will be easier to buy a new water heater.
In the case of determining a leak from under the flange, it is too much trouble for the repair of water heater Thermex, or any other not.It is enough to drain the water heater, remove the gasket and visually determine its wear or damage.Take it with you and go shopping in search of similar.Me and use the boiler on.By the way, the company Onyx offers pipeline components, including steel flanges, at reasonable prices.
These are the main problem of electric water heaters.As you can see from the flow of their will be less, but it costs more.