In detail: do-it-yourself repair of a thermo-pot pump from a real master for the site my.housecope.com.
Thermopot is a mixture of a teapot and a thermos. To maintain a certain temperature of the liquid in the device, a heating function is provided. Despite the rather reliable design, the device breaks down over time, and the question arises: is it possible to repair the thermopot with your own hands?
Before you start looking for the reasons that caused the malfunction in the device, it is advisable to know a little about its device. A thermopot consists of a plastic or metal case, inside which there is a metal container for water. The device is closed with a lid with controls.
In any thermo-pot there are 2 heaters: one for boiling water, and the second for maintaining the desired temperature regime. To control the heating of the liquid to a certain value, the device is installed thermostat... The latter is of 2 types.
Stepless - characterized by smooth regulation of the water temperature in the range from 60 to 100 degrees.
Stepwise - the temperature regime is adjusted according to fixed temperature values, for example, as in the VITEK VT-1187 GY thermo-pot, Saturn ST-EK8032, as well as in the MYSTERY MTP-2403 device
Thermopots always have at their disposal several heating control modes. The more modes there are, the more flexible the device can be controlled.
But practice suggests that in most cases 3 modes are enough to control temperature indicators. In inexpensive models, such as Magnit RTP-013 and MAGNIT RTP-002, only 1 temperature setting is available, which only allows you to boil water.
Video (click to play).
Also, the thermopot is equipped with an electronic board (control module) and electric pump (pump) for supplying heated water from the container. To supply heated water to the cup, there are several modes: manual filling, auto-filling and filling with a lever on the spout. Such filling functions are available, for example, in the Polaris pwp 4012d or Saturn ST-EK8034 NEW aggregate.
The most common causes of breakdowns are the following parts of the device:
network wire;
control module;
water pump;
electric heaters;
thermal switch.
Before you repair the thermo-pot with your own hands, you should disconnect it from the network. After that, in order to “ring out” the wire of the device with the tester, it must be disconnected. To do this, unscrew the screws on the bottom of the device and remove it. You will see the terminals to which the power cord... Unplug the cord and start “ringing” it with the tester. If the cord is in order, you can proceed with further troubleshooting.
If you find that on your device button does not work or all keys, the cause of the problem may be a failed control unit. It is not recommended to repair it on your own, since it is necessary to have certain knowledge in radio electronics. It will be better if a service center will repair the thermos kettle.
If, after turning on the device, it does not boil water, while all heating modes, as well as automation, are working, then these symptoms indicate that the heater may have burned out or the thermostat has failed.... To find out, you need disassembly of the unit.
Empty the container and turn the device over. At the bottom, you will see screws that need to be removed.
Using a flat object (you can use a screwdriver), remove the plastic ring from the clips. Under it you will see fasteners that need to be unscrewed.
After removing the screws, remove the pallet. To continue disassembling, it is recommended to mark with a marker all the wires of the same color and photograph the location of all other wires. This should be done so that later during assembly there are no difficulties.
Disconnect the hose clamps holding the hoses connected to the pump. You can simply cut them off with scissors or wire cutters.
Disconnect the hoses from the electric pump connections.
Remove the top cover of the thermo pot, without applying great force, turn it upside down and lower the tank so that it is on the table.
Unscrew the PCB and set it aside.
2 more screws can be found under the gasket.
After unscrewing all the screws on the metal pallet, it can be removed together with the bottom.
Next, remove the 8 screws holding the cover.
Now use a screwdriver to pry off the protective cover and remove it. You will see a heating element.
After removing the heating element, it must be checked for open circuit using a tester. If the changes have shown that there is damage to the heater, then it will have to be replaced with a new one, since water does not boil due to this breakdown.
In different models of units, the type of heating elements may differ. Their location may also vary. But the algorithm for disassembling the device, in most cases, is similar. To learn more about how to change the heaters, you can watch the video.
If the thermopot does not pump water when trying to pour hot liquid into the cup, then most likely the pump does not work, due to its failure. To get to the pump, you will need to disassemble the device as described above. After removing all parts of the bottom, you will see the pump.
Next, do the following.
To easily remove the pump, disconnect one of the tubing connected to the pump. If the tubes are clogged with limescale, it is recommended to remove and clean them.
Separate the pump from the housing and be careful not to lose the silicone gasket.
After that, unscrew the fasteners connecting the motor to the impeller to the pump housing.
After disconnecting the pump housing and the electric motor, you will notice scale build-upthat interferes with the rotation of the impeller.
Also, if you remove the impeller (it is she who is responsible for the water supply), you can find clogged magnetto be cleaned of dirt.
If, after removing all the contaminants, the pump does not turn on and there is no water supply, then you will need to purchase a new pump, since these signs indicate a burnout of the electric motor winding.
Sometimes a situation arises when the thermo-pot does not turn off and boils water constantly... Or vice versa: you have poured water, the device heats it up, but turns off when the liquid is not boiling yet. Why is this happening? This malfunction can occur when the thermal switches are faulty. They can be found on the bottom and sides of the tank. For better contact with the surface, a special thermal paste is used.
The thermal switch located at the bottom of the tank is attached to it with two screws. Sometimes a manufacturer, especially a Chinese one, applies little thermal paste, because of which the thermostat starts to work incorrectly: the device may not turn off for a long time when boiling water.
To test the thermostat for operability, it is necessary to disconnect it from the tank body, and remove the wires from the terminals. In the normal state (no heating), the relay is in the “on” position. If you check it with a tester, the device will show a resistance of 0 Ohm.
Next, you should connect 2 wires to the switch and immerse it in water brought to a boil. Now measure the resistance again. If the device shows infinity, it means that the switch has tripped and it is functioning normally. If the sensor is not working, then you should purchase a new one and replace it.You can watch the following video about replacing the thermal switch.
Above, some breakdowns of the thermos kettle were considered, which can be completely eliminated without the involvement of a specialist. In other cases, the unit should be taken to a specialized service center for repair. But before you hand over the device for repair, ask how much it will cost you. Most often, from a financial point of view, repairs are not justified, since its cost will be within the price of a new thermo-pot.
Do-it-yourself thermo pot repair: circuit, thermos does not boil or pump water, do-it-yourself thermal fuse
Do-it-yourself thermo pot repair in 3 steps
It is quite possible to repair a thermopot with your own hands, even without special knowledge of electrics. The thermopot was invented very recently. After boiling water, the kettle does not keep it hot for long. It is the thermopot that helps the water temperature to be maintained for a long time. You can always drink tea, and you don't have to boil it and wait. But, like any technical tool, a thermopot fails, and you have to repair it. How to do it yourself later in the article.
In ancient times, a thermopot would have been called a samovar, now it is affectionately called a potter. He can not only boil water, but also keep it hot, like a thermos. But if the potter breaks down, it is not necessary to call the master and carry it to the repair. The work can be done independently. Before using each household appliance, you must read the instructions. Understand how to use the item correctly and what will prolong its use. For example, a thermopot, according to statistics, often breaks: an indicator panel, a key for primary boiling, secondary boiling, boiling function and water supply.
All these breakdowns occur due to the effect of high temperature on all elements of the device. For example, the housing that protects the entire device should not heat up during boiling.
Thermopots data are very popular: Polaris, Vitek, Elenberg, Scarlett and Alisa. The thermo-pot circuit is light enough for a non-professional electrician to figure it out. But all the same, the scheme is a scheme, and it is not recommended to climb into it without minimal preparation. Therefore, if the thermo-pot does not boil water at all or does not perform the functions of a thermos, then first you need to study its scheme and understand the principle of operation.
Before proceeding with the repair of a thermopot, you should familiarize yourself with its diagram
Thermopot operation scheme:
All elements are located under the protective casing;
The water tank is made of stainless steel;
Heating coils are installed at the bottom;
The thermopot heats up with one spiral, the second maintains the temperature of the water;
The thermo-pot pumps water using a water pump.
The thermopot works as follows: after pouring water into the thermopot itself, the lid closes and the device turns on. One coil begins to boil the water. A thermal fuse turns off the product as soon as the water reaches the desired temperature. The water cools down to the desired temperature set by the user. The temperature itself is maintained by a second heating element. Thermal fuse recommend using Sheng Ping SPF 139 reusable. Therefore, if a thermal pot breaks down, you will have to completely disassemble it, remove the cover with a button, check the heating element and establish why it broke.
Products from different manufacturers have their own characteristics. For example, the Vitek device has a dedicated button for filling the cup with water. This button is also called a pump or pump. With its help, you can draw hot water into a cup without getting burned. The circuit of the Vitek thermocouple motherboard is called RSP22, it is available and easy to do in special services.
If the thermo-pot constantly breaks down, then you need to take it for repair or deal with the problem yourself.It is better to start repairing the kettle by disassembling the case, remove the lower plastic part, and unscrew all the bolts. After that, access to all electronics is opened. The electrical component of the product is open to fault determination. It is of fundamental importance to repair the thermal sweat after a complete analysis. After evaluating all the components with a view in the instructions, you can establish the causes of the breakdown - maybe the stainless steel tank has broken.
One of the frequent breakdowns of a thermopot is a breakdown of the indicator panel.
The reasons why the thermo pot does not work:
The display panel does not turn off. The opposite also happens, a complete lack of operation of the device and the display panel. In this case, you need to check all the wires and contacts. Check the boil regulator.
The main switch does not work. Check all temperature switches and if the wiring diagram of the switch located at the bottom is working properly.
The water is heated, but not boiled. When boiling is turned on, the thermal pot turns off and does not perform its main function of boiling. In this case, the contact is checked for rupture or completely the boiling part.
If the thermopot does not heat due to the breakdown of 2 spirals, then there is no point in repairing it. It will take a long time and a large amount of money. With a lot of shortcomings, it is easier to take a new one, because repairing the wiring and the tank in total will be expensive.
Most importantly, check the settings on the control panel. Perhaps the boiling function is turned off, and the thermo pot is turned on only in heating mode. Then it turns out that there is no malfunction, which means that the elimination of the broken part is not necessary. The settings are ok, but the water is not boiling - check the temperature sensor and heater. If the elements do not work well, then they must be replaced with new ones.
How to disassemble a thermopot:
Remove the top element - the cover. Then remove the ring securing the inner tank to the body.
Remove all fasteners - screws and bolts.
Remove the bottom of the thermopot.
In order to disassemble the thermopot, you must remove the upper element and the bottom of the device
A screwdriver is useful for all these manipulations. To get to the electronic filling of the device, you need to remove all the elements, and only then can the device be repaired. The thermo pot can perform many functions, for example, replace the thermo mug. But, what is the use of this, if the water is not boiled there - neither brew tea, nor coffee.
But, before disassembling the device, you need to know exactly where what is attached and how many parts were there before the disassembly.
The thermal switches have a boiling function. They are usually located at the bottom of the product or along the walls. In order for the thermal switch not to melt, it is treated with a special solution. To test the element for work, you need to pull it out and leave it on, screw the wires to it, and place them in the water. With all this, you need to check the resistance. It should not be outside the water, if it has increased in the water, it means that the part is working and the breakage is not in it. If the opposite is true, then the thermal switch is faulty.
It happens that the thermopot works, boils, heats and keeps the water warm as much as necessary, but it is impossible to pour water - the valve is broken, and the water supply is impossible. And it's not at all clear which option is better: a broken heater or a feed function. Such a breakdown indicates a malfunction of the pump (pump) for pumping water into the mug. Then it is necessary to disassemble the machine and examine the suspicious element.
How to get to the pump:
After removing the metal housing, disconnect the tubing from the pump. If you find scale on the wires, you need to get rid of it.
Disconnect the pump itself from the tank and housing, while trying not to lose all the small parts.
As soon as the pump and the electric motor are disconnected, remove all scale that interferes with the correct operation of the device.
If the thermopot does not pump water, then it is necessary to replace the pump.
Like any household appliance, a thermopot needs care and attention. You can descale it at home using citric acid, acetic acid, and baking soda. You need to clean the thermopot immediately, with the appearance of the first scale. If the product begins to emit suspicious sounds, then cleaning is all the more necessary. This is the first signal for help.
If after all these manipulations there is no water supply, then it is necessary to change the pump itself - to buy a new one. There is no point in restoring a damaged pump.
Soda and acid cleaning is carried out in accordance with the size of the product itself. You can also use special cleaning agents, just carefully study the composition. Citric acid has its drawbacks - sometimes it is not enough for one kettle. But after boiling water with citric acid, it is important to then wipe the kettle with a soft cloth. There is no smell after boiling, it can be combined with vinegar. Acetic acid cleans from limescale instantly, but it is very difficult to get rid of the aroma afterwards. It takes several boils after and cleaning with a special tool, so it is better to clean with a mixture of citric acid and vinegar.
