Which master knows what is going on when the microwave oven is turned on and does not heat?

If it's good and sometimes it's bad, it's poor contact; If the heat is not heated when the large fire is converted to the small fire, it is estimated that there is a problem with the transfer switch, and it is enough to change it. If all of them are not heated, it is a problem with the microwave tube, and changing the ** of the microwave tube is almost equivalent to buying a new one. can be repaired, but I am afraid of being "slaughtered", so ask before repairing**, and declare that it is more than ** to be repaired after you confirm.

Close the door with some force, and try again, it may be that the switch of the door is not pressed properly. Pick it up on the right side and listen to the roar of the transformer, if there is, no problem, if there is no roar of the transformer, only the sound of the fan motor, it is broken, or the transformer, or the magnetron.

That's your transformer, or the magnetron, or the bad wire contact. You can open it and see, it's okay, it's very simple inside. See if the thread is plugged in tightly.

There must be no metal film on the outside of the thing to be heated.

A lot of food products are aluminum-studied.

Is the liner painted? If it is, it is very old, the internal paint layer falls, the microwave is directly emitted to the metal, and there is no ** back, simply put, the microwave only goes and has no return, and there is no high-speed movement back and forth, so it loses its effect.

Method 1. Polishing the liner with sandpaper, then buy a can of self-spraying paint to spray the liner evenly, and you can use it after drying.

Method. Second, just throw it away and buy a new one.

1. First of all, check whether the voltage is not enough, so it causes the microwave oven to rotate, but it is not heated.

2. Check whether the connecting wiring of the microwave oven falls off, if the connection line falls off and the microwave oven cannot be heated normally, connect the wire.

3. Check whether the microwave oven high-voltage transformer and high-voltage capacitor are damaged, and if they are damaged, replace the corresponding parts.

4. Check whether the magnetron of the microwave oven is damaged, if the magnetron is damaged, replace the magnetron of the microwave oven.

5. Check whether the microwave oven power controller is connected, if it can't be connected, it may be that the power controller motor is damaged, and the power controller motor can be replaced.

External reasons: it may be the circuit voltage problem, which is also the most basic problem, when it cannot be heated, the first choice should be to check the plug, circuit and other problems. It is also possible that the voltage is too low and cannot generate microwaves below 187V, so it is best to avoid peak power consumption periods.

High-voltage transformer line off: You can contact the after-sales service to replace a high-voltage component.

High voltage diode damage: Damage to the magnetron and high voltage diode will cause the capacitance to decrease, at this time, the microwave oven can be rotated but not heated, this can be disassembled and inspected by itself. To solve this kind of problem, it is best to find a professional maintenance personnel.

The microwave oven is powered on but does not heat up due to the following reasons: 1. Fuse fuse, check door switch, microwave high-voltage system (high-voltage transformer, high-voltage diode, magnetron, high-voltage capacitor), fan motor, turntable motor. After troubleshooting, it can be replaced with a fuse test machine. Hint:

The main purpose of inspecting the high-voltage transformer is to observe whether there are traces of scorching in the primary winding and high-voltage winding, and whether there is any burnt smell of insulating paint. 2. If the fuse tube is not damaged, the mechanical control and paving microwave oven can be checked to check the mechanical timer and magnetron temperature limiter. Computer-controlled microwave oven:

Observe the fuse of the computer board, and check the power transformer and magnetron temperature limiting protector on the computer board. After troubleshooting, it can be replaced with a safety test machine.

See if the microwave door is not closed tightly. At this time, the microwave oven is not heated.

Questions. It's changed, it's not a matter of the door, it's normal, it's just not heated, it's used the day before, and it's not heated the next day.

The microwave oven control panel has a short circuit inside, and there is no response when the button is pressed.

Questions. I've been using this microwave oven for more than ten years, but it suddenly doesn't heat up, how do you think I deal with this? Finish.

If the fuse is blown and the power exceeds the rated power, it will not work.

Questions. How to deal with it, you tell me to see if I can fix it, you give me a trick to see how to fix it.

There must be a problem with the short circuit. Repair it and see if there's any value. It's up to you to decide. Sometimes repairs must be bought new, not much cheaper.

This situation is not something we can easily deal with. You need a professional to take a look. It's not going to be a superficial problem.

It's been more than ten years, and it's pretty much normal.

Questions. I'm just saying if I can handle it myself, to see if I can fix it. I'm just saying that I can fix it myself, you give me a move, I see how to fix it, didn't I ask you to give me a trick?

It's right, if it's simple, I can fix it myself, if I can't fix it, forget it, I'm just saying that I can't see if I can handle it here, you can reply to me.

We can't fix the circuitry inside.

I can't get it myself, it won't be a small problem.

Or rather, it's a superficial problem.

1, the high-voltage transformer in the microwave oven must be higher than 187V to work normally, in the case of low voltage is recommended to avoid the peak period of electricity consumption 2, we all know that the fuse is broken mainly because of excessive current, when using a multimeter to detect, you need to put the multimeter in the r 10k block to test the high-voltage capacitance and high-voltage diode again, and found that the high-voltage diode has resistance in both forward and reverse, and the normal forward direction is about 150k, and the reverse infinity is judged to be leakage of the high-voltage diode, Replace the high-voltage diode and fuse, fault and elimination!

See if there are any of these two situations, and if you don't, you don't need to fix it.

The high-voltage part of the microwave oven is composed of five parts: magnetron microwave tube, high-voltage transformer, high-voltage capacitor, high-voltage rectifier tube, high-voltage fuse and so on.

The machine will not be able to complete heating at the scheduled time due to improper operation of the cutter on the magnetron, which is usually due to the poor performance of the cutter. When repairing the fault, it is necessary to consider whether the cooling fan is working properly. If the fan is not working, then it will not be able to dissipate heat, which will cause the temperature to rise and make the thermal cut-off device work and cut off the power to the magnetron.

After measuring with a multimeter, it was found that the resistance of the motor coil was abnormal. It is recommended to replace the motor with a new one and confirm that the turntable is working properly. If this happens, the microwave oven has been in a humid environment for a long time and is not used often, which can cause mold in the coils of the turntable motor, which can damage the motor.

First of all, check whether the microwave oven has a normal power supply, open the shell of the microwave oven, check whether the fuse in the machine is blown out, if not, it may be because of the failure of the transformer secondary circuit, detect whether the high-voltage diode and magnetron are normal, if it is normal, detect the high-voltage capacitor, if there is a short circuit, cause the fuse to burn out when the power is turned on. It is recommended to replace the high-voltage capacitor of the same model. Check whether it is a high-voltage capacitor, a high-voltage diode or a magnetron one by one, replace them one by one with the replacement method, when the diode is replaced, it is found that the fuse is not burned when it is turned on, and the heating returns to normal.

This means that the high-voltage diode is faulty, and this fault is generally not detectable with ordinary multimeters. If it is caused by the misoperation of the cut-off device on the magnetron, the machine will not complete the heating according to the scheduled time, which is usually caused by the poor performance of the thermocuter. When repairing the fault, it is necessary to consider whether the cooling fan is working normally, if the fan is not working, the heat cannot be discharged, resulting in an increase in temperature, causing the heat cut-off to work and cutting off the power supply of the magnetron.

After measuring with a multimeter, it is found that the resistance value of the motor coil is abnormal, and it is recommended to replace the motor with a new one to confirm that the turntable is working normally. If this situation occurs, it is due to the failure of the motor due to the fact that the coil of the turntable motor is damaged due to the long-term exposure of the microwave oven to a humid environment and infrequent use.

What is the reason why a microwave oven works but doesn't heat up?

When we use the microwave, after the point starts running, the microwave oven also glows as usual, but when the time is up, the food is still not heated, so what is the reason why the microwave oven can run but not heat? What is the reason why a microwave oven works but doesn't heat up?

1. The second door interlock switch is broken: the reason for the damage of the second door interlock switch is that the 220 volt working voltage cannot work normally due to frequent operation, poor contact, and electric shock destruction. Workaround:

Check whether the fuse is blown first, and then see if the monitoring switch is normal, if it is normal, it means that the interlock switch is broken. Replacing the switch will do the trick.

2. High-voltage transformer damage: Many people have encountered this situation, that is, the high-voltage transformer is broken. After the microwave oven is turned on, if the light is on but the turntable does not move, it means that it cannot be heated, and if it is normal, replace the high-voltage transformer.

3. The magnetron is broken: The magnetron is broken, mainly because the boot light is on but not heated, and the reason for this is generally due to the aging of the magnetron inside, and the filament is broken.

Solution: When inspecting, talk about high-voltage capacitor discharge, test filament winding, normal is 0 ohm, if this is not the case, it means that the magnetron is broken, just replace it.

In this case, the fuse is generally opened too much of the furniture at home at the same time, so the main gate is directly broken in order to be safe, in fact, this situation is very common in rural areas, in this case, the fuse can be replaced directly, pay attention to the main gate first in operation. 2. High-voltage transformer damage This is an important hub for microwave oven heating, if you confirm that there is no problem with the electricity, and after the microwave oven is energized, and the light is also on after turning on the switch, if the timing turntable does not move, it means that it cannot be heated, and the high-voltage transformer is damaged, it may also be a long-term work, or the quality of the purchased product is not good, if there are professionals at home, you can buy a high-voltage transformer to replace, generally speaking, it is responsible for maintenance. 3. The main step of magnetron aging inspection is when the high-voltage capacitor is discharged, measure the resistance of the filament winding, if it is 0 ohms, it is normal, if the pointer is shaky, it means that the magnetron is damaged and has begun to be energized, and you need to buy a magnetron to replace it.

As for the second door interlock in the microwave oven, if you flip the button back and forth for a long time, it may also cause the door interlock switch to break, and you can replace it in time.

What brand you want to see, directly ask the customer service to arrange personnel to come to the repair.

You can also find maintenance personnel to provide door-to-door service.

At the end of the reply, your praise is a great support for us! Please give it a thumbs up!

Questions. Can I get a repair? lg

Questions. <>

How much?

If the microwave oven suddenly does not heat up, it may be because the turntable is not in the correct position, the microwave oven is not energized, etc. Common microwave oven brands in life are: Sanyo, Haier, Siemens, Toshiba, Weili, Fotile, etc.

Microwave ovens are a very common kitchen appliance that can heat up a variety of foods in a short period of time and are very popular with consumers. The following is an explanation of "what happens when the microwave oven suddenly does not heat", and interested friends can continue to read and understand. <>

1. When the microwave oven suddenly does not heat up, it is likely that the turntable in the microwave oven is not dry. At this point, you need to take out the turntable and reposition it.

2. When the microwave oven suddenly does not heat, the microwave oven suddenly does not heat up and there is no electricity. At this time, you can check whether the outlet of the microwave oven is normal, or whether there is a power outage in your home.

3. If the microwave oven is energized normally, but it is not heated, it may be because the circuit of the microwave oven is out of the cluster. At this time, it is best to find a professional to carry out the repair. No Zheng La.

4. If the microwave oven does not heat, and the noise and vibration are very large, it is likely that there is a problem with the built-in system of the microwave oven. At this time, it is necessary to turn off the power in time and contact the maintenance personnel for on-site maintenance.

<> if the microwave doesn't heat up, it's best to take it to a repair shop to fix it. If the economy allows, it is also possible to buy a new microwave oven. By reading the above related content of "What is the matter when the microwave oven suddenly does not heat" and "Does the microwave oven not heating need to be repaired", I hope it can help you deepen your understanding of the reasons why the microwave oven suddenly does not heat.

If you can't determine the reason why the microwave oven suddenly doesn't heat, it's best to contact a professional to repair it.

1. Maybe the reason for the wire, there is a short circuit, or the fuse is burned out.

2. If the microwave oven is not heated after a few years of use, it is basically a problem of short circuit of the diode.

3. If there is a problem with the high-voltage capacitor in the microwave oven, or the voltage device is damaged, the microwave oven will not be able to heat.

Microwave oven is an electrical appliance that can not only cook food, but also heat food, every family needs to have a microwave diffuser stove, but when using the microwave oven at ordinary times, many friends will encounter the situation that the microwave oven is running normally but is not heating, so what is going on? How to repair the microwave oven if it is not heating when it is running normally? Below we bring the solution to the microwave oven running normally and not heating.

What happens if the microwave is working properly and not heating?

Reason 1: The second door interlock switch is broken.

The reason for the damage of this two-door interlock switch is that the 220 volt working voltage cannot work normally due to frequent operation, poor contact, and electric shock destruction. Solution: Check whether the fuse is blown first, and then see if the monitoring switch is normal, if it is normal, it means that the interlock switch is broken.

Replacing the switch will do the trick.

Reason 2: The high-voltage transformer is damaged.

Many friends have encountered such a problem, that is, the high-voltage transformer is broken. If the light is on but the turntable does not move after starting, it means that it cannot be heated, and if it is normal, replace the high-voltage transformer.

Reason 3: The magnetron is broken.

The damage of the magnetron is mainly manifested in the fact that the boot light is on but not heated, and the reason for this is generally due to the aging of the magnetron inside, and the filament is broken. Solution: When inspecting, talk about high-voltage capacitor discharge, test filament winding, normal is 0 ohm, if not so, it means that the magnetron is broken, just replace it.

The solution for the microwave oven to work normally and not to heat

1. Check whether the diode of the microwave oven is damaged and faulty, resulting in the normal operation of the microwave oven but not heating, the phenomenon of this situation is that after the microwave oven is turned on, the indicator light is also on, and the internal turntable is also rotating that is not heated, the solution is to check the degree of damage to the diode, which can be repaired or directly replaced with a new diode.

2. If the power supply voltage at home is unstable, or the voltage is too low, it will also cause the microwave oven to not heat, generally this situation occurs in the peak period of electricity consumption The voltage is unstable, so first check the power supply voltage, the microwave oven must be higher than 187V to work normally. As a solution, it is advisable to stagger the use of wave wheels during peak periods, or to install a voltage regulator at home.

3. Check whether the microwave oven is damaged when put into the magnetron, if this is the case, it will also lead to the phenomenon that the microwave oven is not heated, and the solution is that it is recommended to ask a professional home appliance maintenance master for inspection and maintenance.

4. The microwave oven is not heated due to the damage of the high-voltage transformer, you can check that the microwave oven is turned on after the light is on but the turntable does not move and cannot be heated, it is likely that the high-voltage transformer is broken, and the solution is to replace the high-voltage transformer.

The above is the solution to the normal operation of the microwave oven does not heat the introduction of the bridge sign, the reasons for the normal operation of the microwave oven are the second door interlock switch is broken, the high-voltage transformer is damaged and the magnetron is broken, etc., we need to check the microwave oven first, to see what is the reason for the non-addition of people caused by the rent, and then we can take the corresponding methods to solve it. If you can't solve the problem yourself, then you can only find a professional to repair it.