The dish does not spin in the microwave: possible reasons

The most serious problem is engine breakdown

Engine breakdown is the most serious and costly microwave oven malfunction. And often it involves replacing the motor or one of its elements. Only a qualified technician should repair the engine.

Malfunctions in the engine can result from improper use of the instrument.

• When the container with food touches the walls of the chamber, a large weight of the heated food, manual braking and other moments stopping or slowing down the rotation, the motor shaft of the motor may fail. Replacement of the part will be required.
• Water droplets, food particles and debris can enter the motor housing and gear cover and cause a short circuit in the winding.
• Mechanical wear of the gears of the reducer. Plastic gears are installed in modern microwave ovens. On the one hand, this reduces the cost of the device, and on the other hand, it contributes to the rapid wear of parts.
• During long-term use of the oven, the contacts may oxidize, move away. In this case, you need to clean the contacts and press them tightly to the power source.

In order for the microwave oven to work for a long time and without interruption, it is necessary to read and follow the instructions for use and care before using it.

Warranty and self-repair

Repair under warranty or by yourself. If you do not have the necessary tools, the presence of minimal knowledge about the microwave device, it is better to entrust the technician to professionals

What to do in a situation if the dish does not spin in the microwave, but the device itself heats up? Try to figure out the causes of the breakdown and solve it yourself, or take it to the service center in the hands of specialists who understand the intricacies, nuances and have the entire professional set for work. There is no charge for troubleshooting, if the case is recognized as warranted.

If household appliances were purchased relatively recently, they are covered by the warranty period, of course, it is better to give them to a service center, since if the integrity of the device is violated, the pallet will not be damaged. Therefore, if you nevertheless decide to open the microwave case, to determine the cause of the malfunction, make sure that the warranty period has passed or make sure that you are confident (financially capable) of your strength to repair a broken device 100%.

Self-repair

Repair at home, restoring the rotation of the disk inside the microwave, determining the cause of the malfunction is not difficult to identify, carefully following the instructions, having a few skills, the necessary tools for work.

The first step is to be sure to disconnect the microwave oven from the power source, open the housing cover by unscrewing the screws in order to carefully examine all the engine parts. If other methods of correcting the situation have already been tried (reinstalling the plate, examining the space for a foreign object, cleaning from fat and dried food, reducing the portion in the plate), you need to act depending on the type of breakdown:

If, while inspecting the gears in the gearbox, you notice worn teeth, it is necessary to replace them, some "craftsmen" are able to repair the part by inserting a wire instead of a broken tooth;
Noticing the sliding of the coupling along the motor shaft, it is necessary to more firmly fix it or replace this element;
A breakdown of the winding (combustion) leads to repair by a professional; the malfunction of this part can be eliminated only by replacing or updating the microwave motor. Be sure to voice the microwave oven model when buying a new engine part;
The problem of the lack of rotation of the plate due to the accumulated layer of grease, dirt is eliminated quite simply with the help of cleaning agents

It is worth noting how important it is not to "flood" the motor itself with water, to worsen the situation. Having dried the inner chamber well, you need to properly install the pallet and try to turn on the microwave again;
If a problem is found in the wiring and there is a suspicion of a malfunction of the circuit, it is necessary to find an open circuit (burnt out element, for example a light bulb) and install a new part to replace the non-working one;

In order for the microwave oven to serve for a long time, without failures and breakdowns, you must carefully read the instruction manual initially. And also, to carry out timely cleaning, follow all the rules according to the instructions, do not load the microwave and observe the modes of cooking, heating food.

Technical breakdowns

After inspecting Whirlpool, Samsung, Panasonic, Scarlett or other models, if no visible and simple reasons are found, proceed to the technical diagnostics. The source of the breakdown determines the complexity of the repair, but it must be determined by a person with experience, knowledge and a special tool. The main faults are presented in the table.

On older models from Daewoo, Vitek, LG, Rolsen and other brands, the interior lighting lamp is connected to the serial power circuit. Burned out, the lamp stops the transfer of energy to the rest of the nodes, the food stops not only spinning, but also warming up. Eliminated by normal lamp replacement.

Repair tool kit

You will need:

• screwdrivers (flat, Phillips);
• pliers;
• multimeter (for winding diagnostics);
• superglue, grease, alcohol, cotton wool may come in handy.

Step one - disassemble the microwave

To get to the "rotator", it is necessary to remove the upper part of the oven. This will allow you to get to the bottom. Unscrew the screws securing the case with a screwdriver, carefully remove it. You may need to tap a little to get the walls out of the grooves. You now have access to the bottom of the device.

Step two - dismantling the bottom

Pay attention to the transformer first. It is fixed to the bottom of the body with four bolts

Unscrew them carefully. Move the transformer away without removing the wiring terminals so that it does not interfere with further work

Unscrew the rest of the fasteners, remove the bottom cover. Disconnect the terminals (two wires). Unscrew the refrozen. This is the part that needs to be replaced or repaired.

What to replace?

Electric motors for pallets can be 21 V, 24 V, 220 V. All necessary parameters are indicated on the spare part sticker. You can buy a refrozen suitable for your model in a specialty store or on a marketplace.If you decide to get to the bottom and try to fix the engine yourself - read on.

And if not a microwave motor, then what

In fact, there are quite a few reasons that lead to a malfunctioning microwave oven. It happens that the matter is not in some fatal problems. Therefore, always check to see if this is the case.

There may be several reasons for a microwave oven malfunction.

Possible reasons for the malfunction of the microwave:

• Low mains voltage - even with a slight deviation, malfunctions may occur, the uninterruptible power supply unit solves this problem;
• The latch in the surf door is out of order - and then, from incomplete closing, the microwave does not heat the food well enough, or even does not turn on at all, then you need to repair the latches, and possibly change them immediately;
• Overloading in the network - many electrical appliances working from the same network at once can also cause malfunctions, because one outlet in the kitchen is a real disaster.

Wrong choice of operating mode - you simply did not switch from the previous function to a new one that is needed at the moment (for example, you did not disconnect from defrosting, and are wondering why this food is not heated).

The main reasons for the breakdown of the microwave oven tray

In old microwave ovens, the plate did not spin at all. To obtain food at the required temperature, it was necessary to turn it over by hand. However, over time, microwave models have improved, new functions have been added.

Rotating the pan in the unit helps to heat the food evenly. This allows you to get food of the required temperature in a short time, without performing additional actions. There are several reasons why this function may be impaired in a microwave oven.

3> Bulb burnout

In some models of microwave ovens (in most cases, old ones), the lamp needed for the internal illumination is included in a series circuit. If burned out, the contact is broken. As a result, the plate in the oven does not rotate. To cope with such a problem is quite simple - to replace the faulty lamp.

Incorrect pallet installation

To rotate the plate in the microwave, there are special wheels and rails. If the pallet is incorrectly positioned, its movement is impossible. In addition, the pallet may not be properly positioned due to the large volume of food. The problem is easily fixed - you just need to fix the plate.

Foreign body

A special part is installed inside the microwave oven - a coupler. Under it is a small motor that drives the plate. Sometimes a small piece of food can get stuck in the branches (there are three of them) of the coupler. It will cause the pallet to rotate incorrectly. It is enough just to remove it, and the stove will work again.

Technical reasons

If, after examining the microwave oven, no external problems are identified, then there may be a technical breakdown.

Similar reasons for a microwave oven malfunction include:

1. Broken gear reducer. This is one of the most common causes of microwave oven failure. It is possible to cope with the problem by replacing the part. If there is no positive result, it is recommended to check the engine. If it breaks down, it is easier and cheaper to purchase a new unit than to repair it.
2. Coupling problems. This part is connecting. If it starts to slide on the shaft, then rotation is disturbed. You can try to strengthen the clutch or replace it completely.
3. Break in the motor winding. It is unlikely that it will be possible to eliminate such a reason on your own. It is recommended to contact the wizard.
4. The power circuit is interrupted. It is worth "ringing" the wiring to identify gaps.

Microwave without pallet

The first stoves did not have a turntable. However, new models also often do not have such a device.In this case, the magnetron is located not in the lateral part, but at the bottom. There are two types of such units: with a movable and fixed radiator. If you have problems with such a microwave oven, it is recommended to contact the master, you will not be able to set up the work yourself.

Microwave device

To make it easier to repair a microwave oven, let's get acquainted at least in general terms with its device. Most of all we are interested in her "insides".

Microwave device

Generates microwaves magnetron. It is connected to the camera by a rectangular waveguide. In some models, the waveguide is covered by a piece of mica (a gray-brown material that looks like metal), in others, a plastic cover. The magnetron is powered by a transformer, a capacitor and a diode. There is often a high voltage fuse in the supply circuit to protect the transformer from overload.

There is a fan for cooling the magnetron. Warm air from the magnetron also enters the working chamber through the air duct, which accelerates the heating of food. Steam and excess air are removed from the chamber through special openings that do not allow radiation to pass through.

Microswitches for locking the closed door

To prevent the microwave oven from working with a loosely closed door, blocking microswitches are installed. Until their buttons are pressed (doors are not closed), power is not supplied. When the door is opened, the power circuit is cut instantly. One of the reasons the microwave does not turn on is breakage or sticking of these small parts.

The number of microswitches depends on the model. There can be from 2 to 5 pieces. Some manufacturers also use them in the trigger and power control circuits. So one of the reasons why the microwave does not heat up may be damage to the microswitch in the power control circuit.

An incandescent lamp is installed in the chamber for lighting. Most often it is located inside the duct.

Operating modes are set from the control panel. It can contain electromechanical switches, or it can be made on the basis of a microprocessor. Digital control again can have options: there can be ordinary buttons that select a mode, or there can be a touch panel. If a trouble happened with the control, it is better not to get into electronics without knowledge and skills. The only thing that can be checked is how well the conductors hold. Everything else - only with the appropriate experience.

Microwave motor

Why isn't the dish rotating in the LG microwave? If the above works completely properly, then it is necessary to check the operation of the microwave motor. The check can be done by measuring the resistance of the winding. To do this, you need to connect an ohmmeter to the terminals or a multimeter. The multimeter switch must be set to 20 kOhm. If the problem is a blown winding, the tester will show the measurement as infinite resistance. The burnt winding is replaced with a new one. This is a rather complex type of work that only a master can perform. And any novice electrician can completely change the motor.

Note! When inspecting the motor yourself, you must disconnect the microwave oven from the mains. A burnt-out winding will be indicated by the burnt smell of varnish, which you will surely catch

There is a motor under the body of the microwave oven. The screws are unscrewed with a screwdriver, after which the cover is removed. Next, access will be freed up, and you can inspect the motor. If the engine turns out to be covered with grease or any liquid, then it must be cleaned and dried, and then started. If the winding is burnt out, the smell of burnt varnish will be felt, which is very easy to catch.

A burnt-out winding will be indicated by the burnt smell of varnish, which you will surely catch. There is a motor under the body of the microwave oven.The screws are unscrewed with a screwdriver, after which the cover is removed. Next, access will be freed up, and you can inspect the motor. If the engine is covered with grease or any liquid, then it must be cleaned and dried, then started. If the winding is burned out, you will smell burnt varnish, which is very easy to catch.

Why isn't the plate spinning in the microwave? If, nevertheless, the winding is intact and has not burned out, it is possible that the power circuit in the microwave has cut off. A breakdown can be detected using a multimeter (tester). It is necessary to ring the circuit, eliminate the break, and replace the part that has burned out or is out of order. When disassembling a microwave oven, it is better to take photographs - this will make it easier to assemble the device in its original state.

Reasons for the lack of rotation of the pallet

If an element such as a plate does not spin in the microwave for various reasons, it will be possible to heat the food, although you will have to spend more time and physical effort. But there is no need to talk about the preparation of a raw product, it becomes impossible. If the time for repair is limited, you can contact a specialized service center for the repair of household appliances. The equipment bought in the store is under warranty, it is worth checking its validity period so as not to overpay for repairs from another master. And with a strong desire to solve the problem of finding out the causes of the malfunction, eliminating the problem, you can carry out an independent correction of the defects in technology.

There are malfunctions caused by the carelessness of the consumer, for example:

• The diameter of the dishes is too large, installed on the plate of the microwave oven, which interferes with rotation;
• A stuck foreign object or a piece of food that has fallen out of the installed dishes;
• A large volume of defrosting food that touches the walls and creates an opposing force on the rotating pan;
• The amount of food to be heated should not be too large, calculated for the power of the microwave oven;
• In case of incorrect installation of the microwave dish in place, the wheels are displaced from the guide grooves after regular cleaning;
• A large layer of accumulated dried food or fat will impair the rotational function of the disc inside the microwave.

Self-repair in the absence of rotation of the pallet is possible, even if the breakdown is of a technical nature. The structure of the system that is responsible for the rotating disk is quite simple, you just have to apply the skills and efforts, first familiarize yourself with the nature of the problem in detail and identify it. There can be several types of reasons for technical breakdowns:

The light bulb stopped working (burned out). In microwaves of the past generation, a different principle of building a chain of interaction between parts is often found. Where the light bulb is one of the connecting components, its burnout is the cause of the pallet malfunction;

Microwave light bulb. It is necessary to carefully select this item, informing the seller of the microwave oven model.

The microwave electric motor is out of order and requires repair. More details about engine breakdown will be described later in the article. Various elements of the motor can be involved here: a gearbox, a motor shaft, poor-quality winding, coupling fastening, liquid ingress and much more;

Microwave electric motor. The configuration is different, but the principle of operation is the same

• The gears have undergone natural wear and tear and need to be replaced. Many manufacturers invest high costs on the design and functionality of the microwave oven, saving on the quality of important components and consumables. Use of plastic, cheap gears instead of metal ones;
• Instability of the wiring at the contacts, a violation in the power supply circuit. Without special knowledge in wiring, it is not worth solving the problem with the control unit and contacts.It is possible to cause not only harm to health without observing safety precautions, but also completely spoil the performance of household appliances, without the possibility of restoring previous functions.

Microwave power supply circuit. Without basic knowledge of electricity, it is difficult to determine the location of the break of contacts.

Why do you need a mica plate in the microwave?

American engineer Percy Spencer first noticed the ability of microwave radiation to heat food and patented it. At the time of his invention, Spencer was working for Raytheon, a manufacturer of radar equipment. According to legend, when he was experimenting with another magnetron, Spencer noticed that a piece of chocolate in his pocket had melted. According to another version, he noticed that the sandwich, placed on the switched on magnetron, warmed up. This situation became the basis for the creation of such a device, which is now found in almost every apartment. It turns out that the invention of the microwave is an accident.

It was necessary for the frequency to be absorbed by something, water could cope with this, the mica plate in this process acts as a window. Therefore, this mineral was originally used to isolate the working compartment from the waveguide and electrical waves. Gradually, they began to use food-grade plastic in the microwave as a replacement for this part.

What to do if the microwave does not rotate the tray

If such a breakdown is found, most of its causes can be easily eliminated at home. In some cases, you don't even need to disassemble the device. The termination of the rotation of the plate, as a rule, is associated with a malfunction of the element responsible for them. It can be caused by engine or gearbox breakdowns, as well as loose contacts or wires.

If the gearbox breaks down and you can try to fix the loose contacts yourself, then the engine malfunction requires the intervention of a specialist, so in this case it is better to take your stove to a service. There, after carrying out a full diagnostics of the device, they will reveal the exact cause of its breakdown, and then it will already be possible to try to fix it on your own.

The microwave works, but the dish does not spin

First, try to find the apparent cause of the breakdown. Inspect the pallet, check the functionality of the coupler and its wheels, look for any mechanical hindrance to rotation. If there are food pieces in the inner compartment, remove them. Rinse under and around the plate to remove dirt and grease that has accumulated on the element.

If the problem lies in the large size of the dish or the food on the pallet being touched by the walls of the microwave, you can try changing the container or dividing the food into several smaller portions.

The microwave is heating, but the pan does not rotate

If the elimination of the above problems did not return the pallet to work, then the reason for its breakdown is clearly of a technical nature. It may be as follows:

• Changing the shape of the gears of the reducer;
• Torque shaft malfunction;
• Short circuit or breakage of the motor winding;
• Contacts "flew";
• Microcircuits burned out.

All of the above reasons lead to malfunctions in the engine - the most expensive part of the microwave. If you suspect that one of these reasons has arisen, it is recommended to take your device to a service center. Independent manipulations with him, in this case, are unacceptable.

When you can fix it yourself

All malfunctions of household appliances, including microwave ovens, are best solved in a service center. However, among the possible malfunctions associated with stopping the rotation of its pallet, three can be distinguished, which it is permissible to try to fix it yourself. All of them consist of a number of simple manipulations:

1. Light bulb burnout. Since in a number of furnace models, the motor and the light bulb that are responsible for rotation work in one line, replacing the light bulb may well be able to solve the problem.
2. Something got into the inner compartment - often, a piece of food caught under the rotating element can stop the rotation of the pan. We remove the foreign body that interferes with rotation and the problem is eliminated. Additionally, you can also try to wash the microwave from frozen fat and dirt.
3. Incorrect positioning of the plate - the problem can be solved very simply - correct the tray and it will start spinning.

Breakdowns requiring specialist assistance

In the case when the problem is more serious and you cannot eliminate it by your own strength, you should contact the service center for help. If your device is still under warranty, it is very possible that it will be repaired for you free of charge. However, if the warranty has already expired, nothing can be done, the repair service will have to be paid. Mandatory specialist intervention is required: engine failure, loose contacts, winding breakage and other problems associated with the breakdown of any element of the device. It is highly discouraged to eliminate such breakdowns on your own - attempts to repair at home can aggravate the problem that has arisen, and, as a result, will lead to the fact that it will only have to be thrown away.

Home appliances Microwave

Repair yourself or at a service center?

Before starting to repair your microwave oven yourself, make sure that the warranty period is over, and you are absolutely sure that you can repair the microwave oven. But remember that not having the necessary knowledge and experience, you can not only not fix the stove, but further aggravate its condition. Unknowingly, you can disable working parts. And this will not only complicate the repair, but also increase its cost.

The right decision would be to contact the professionals of the service center "Polite Service 5+". A qualified technician will repair microwave ovens at home in Moscow. A guarantee is provided for all types of work. We work only with original spare parts.

Why did the microwave plate stop spinning?

All the reasons why the dish stopped rotating in the microwave can be conditionally divided into two categories. The first category includes all the reasons that can be easily eliminated by any person on their own and, in fact, they are not breakdowns. These include the following situations:

• If you have installed too large dishes in the microwave, which touches the walls of the inner chamber with their walls and slows down the rotation. The solution to the problem will be to replace the dishes with a smaller capacity.
• The food container is heavy. Reduce the weight of food you are cooking or reheating.
• A piece of food or an accumulation of fatty deposits on moving parts is preventing rotation. It is necessary to mechanically clean the rotating elements.
• The pallet is not installed correctly. To resume rotation, you need to install the pallet so that the sleeve fits into the grooves of the plate.

How to determine a technical breakdown

In order to eliminate technical malfunctions, it is recommended to first find them, and therefore begin repairs.

Open or short circuit of motor windings

Most microwave ovens have motors that are designed for a voltage of 220 V. Therefore, in order to determine the presence or absence of an open circuit, you just need to plug the unit into an outlet and try to turn it on. If necessary, it is allowed to use an ohmometer for this purpose.

The resistance index should vary from 1.2 to 1.6 kOhm. If the motor is low voltage, the resistance is in the range of 100 to 200 ohms. If the sensor displays values ​​that differ from the standard, or the infinity icon, then we can talk about a break in the motor wiring. Incorrect care or operation can provoke such a phenomenon.

Breakage of the output shaft of the gearbox

In the presence of an overload (large volume of products) or when the plate is forcibly stopped by hand, a malfunction of the output shaft of the gearbox may occur. In cheaper models of microwave ovens, this part is often made of plastic, so it breaks down quickly. Replacing a part is quite simple if you find the right one. As a last resort, you will need to install a completely new engine.

Slipping clutch

With constant and prolonged use of the microwave oven, the coupling is often loosened, as a result of which the plate simply stops rotating. To get rid of the problem, it is recommended that you try to seal the sleeve. If the positive effect does not occur, then the part must be completely replaced.

Reducer gear wear

In the first microwave ovens, the gears of the gearbox were often metal. However, in order to save money in new models, plastic parts are often installed, which accelerates their wear. Over time, the teeth break down.

Undervoltage

Undervoltage at the motor and emitter leads to a decrease in power. As a result, the motor is simply not able to rotate the plate. Often the reason for this is network congestion. It is recommended to disconnect other devices from the mains or use a voltage stabilizer.