The hemispheric microcomputer halogen oven heating tube does not emit light, but the tube is not bro

Summary. Dear, hello, I'm glad to answer for you, 1 Fault phenomenon: Turn on the power and turn on the microwave oven, the stove light is not on, and the food cannot be heated. 2. The main reasons for the fault are analyzed and repaired:

1) The winding of the power transformer is blown off. (2) The overheat protector is disconnected. (3) The cooking relay is burned off or the contact contact is poor.

4) The timer is damaged. Overhaul or replace power transformer, replace overheat protector, repair cooking relay contacts or replace relays, replace timer. In the actual maintenance, the fault is mostly caused by the burning of the power transformer winding.

Dear, hello, I'm glad to answer for you, 1 Fault phenomenon: Turn on the power and turn on the microwave oven, the stove light is not on, and the buried limb food cannot be heated. 2. The main reasons for the fault caused by the analysis and maintenance of the separating liquid cover are: (1) The winding of the power transformer is burned.

2) The overheating protector knows how to break the circuit. (3) The cooking relay is burned off or the contact contact is poor. 4) The timer is damaged.

Overhaul or replace power transformer, replace overheat protector, repair cooking relay contacts or replace relays, replace timer. In the actual maintenance, the fault is mostly caused by the burning of the power transformer winding.

If the seepage can be heated normally, it may be that the lamp is broken. First of all, check whether the power supply is normal. Here's how:

Unplug the microwave oven and connect it to the socket with another working electrical appliance, if the appliance also does not work, this indicates that the power supply is abnormal, and you should find an electrician to restore the normal power supply there. If the electrical worker is suspected of normal, it indicates that the power supply is normal, and the door of the microwave oven should be checked whether the door of the microwave oven is closed, whether the timer switch is open, and the computer-type microwave oven should be checked against the manual to check whether the operation and setting are correct, whether the microwave oven power fuse is in good condition, and if there is a fault, the symptomatic treatment should be given.

Hello dear, glad to answer for you, <>

1 Fault phenomenon: Turn on the power and turn on the microwave oven, the stove light is not on, and the food cannot be heated. 2. The main reasons for the fault caused by analysis and maintenance are: (1) The power transformer is burned out.

(2) The overheat protector is disconnected. (3) The cooking relay is burned off or the contact contact is poor. 4) The timer is damaged.

Overhaul or replace power transformer, replace overheating protector, repair limb recooking relay contacts or replace relays, replace timers. In the actual maintenance, the fault is mostly caused by the burning of the power transformer winding.

<> "What is the reason why the microwave oven light does not turn on and does not heat.

Microwave oven is a more popular kitchen cooking appliance for modern people, so what is the reason why the microwave oven light is not lit and not heated? Let's find out.

1. What is the reason why the microwave oven light is not lit and not heated?

It is possible that the lamp is damaged, we can check the internal lamp tube with fingerprints to see if it has become black and burned out, resulting in no lighting or normal heating, at this time, we need to ask someone to repair and replace the new lamp.

It may be that the connection between the lamp and the lamp holder is loose, resulting in the failure to power up well and cannot be lit, at this time, it is natural that the liquid can not be heated often, you can cut off the power supply of the microwave oven, and then remove the internal lamp and reconnect it to solve the poor contact.

It may also be caused by the failure of the light control switch, such as the abnormal contact point, it is not possible to control the light on and heating well, and it is best to hand it over to after-sales and professionals for maintenance in this case.

2. What are the common faults of microwave ovens?

1. The light will be extinguished before the heating is completed

During the microwave heating process, the lights suddenly turn off and the food cannot continue to be heated. In this case, it is likely to be caused by a power outage or a loose plug, you can look at the power supply status of other electrical appliances at home, if it is normal, check the power plug, and plug it back in if it is loose.

It may also be caused by the furnace door not being closed tightly or the air duct is blocked, which needs to be carefully checked to rule it out. If the microwave oven stops running due to a blocked air duct, you can use a tool to clean up the debris in the air duct.

2. After the heating is completed, the power will not be interrupted

The heating time of the microwave oven is up, but there is still no power off, this situation is likely to be caused by a short circuit circuit, you need to pull out its plug, cut off the power supply and disassemble the furnace shell for inspection, if the fuse is blown, only the comma to replace a new fuse.

The top light of the microwave oven is not on, and it is fine to heat it normally.

Hello, I'm glad to answer for you, the following Danchun is the result of your inquiry, I hope it will help you: the top light of the microwave oven is not on, and it's okay to heat normally. However, if the top light of the microwave oven does not light up and the heating effect is not good, then it is possible that the bulb of the microwave oven is faulty and needs to be replaced.

1.Check that the power to the microwave oven is on, if not, it needs to be plugged in. 2. Check whether the power switch of the microwave oven has been turned on, if not, you need to turn on the power switch.

4. Check whether the control panel of the microwave oven has been damaged, if it is damaged, you need to replace the control board with a new one.

The so-called halogen oven is heated by a lamp, as long as the lamp can be lit, it must be heated, and it can't be hot or not.

The tube you are talking about should be a light. The lights are on the microwave oven does not heat, it may be:

The wires are not in good contact.

The thermoswitch or timer contact is not in good contact.

The computer board is damaged.

The high-voltage transformer is damaged.

The high-pressure fuse is damaged.

The high-voltage capacitor is damaged.

The magnetron is damaged.

How to check for common hardware failures in your computer.

For the soft fault of the computer, it can be solved by analyzing the fault phenomenon, reinstalling the system, replacing the software, modifying the software program, or removing the computer virus. For hard faults, it is necessary to check and eliminate them step by step according to the inspection principle, and the following ten inspection and judgment methods for hard faults are introduced

1.Plugging and unplugging method.

The "plug-in method" is a method of "unplugging" or "plugging" a plug-in to look for faults. For example, if the machine has a "deadlock" phenomenon, this method is used to pull out the plug-in board piece by piece, and if the machine returns to normal, it means that the fault is on the board.

2.Substitution method.

The "replacement method" is to replace the suspected problematic device with the one that has been determined to be the best, and gradually narrow down the search.

3.Comparative Law.

The "comparison method" is to compare the correct characteristics (waveform or voltage) with the characteristics (waveform or voltage) of the faulty machine to see which component's waveform or voltage does not match, and measure it pole-by-pole according to the logic circuit diagram, so that the signal is detected point by point in the direction of the source pursued, and the fault location is determined after analysis.

4.Measurement method.

The "measurement method", also known as the "static measurement method", is an effective method to try to suspend the computer in a specific state, measure the level of each point required with a multimeter according to the logic diagram, and analyze and judge the fault.

5.Heating method.

The "heating method" is a method to artificially raise the ambient temperature and accelerate the "death" of some components with poor high temperature parameters to find faults.

6.Percussion.

The operation of the machine is good or bad, which may be caused by the false soldering or poor contact of the pins of the components and components, or the increase of the resistance of the metal through hole. In this case, it is much easier to use the percussion method to check the circuit board by gently tapping the board with a rubber hammer and then checking it again.

7.Partition method.

The segmentation method is a method of "splitting" the fault, gradually shrinking the board, narrowing it to a certain line, and then to a certain point.

8.Direct observation.

The true observation method is to use human senses to directly observe sparks, abnormal sounds, overheating, scorching and other phenomena to determine the power supply short circuit, overcurrent, overvoltage, loose plug-ins, corrosion damage and other obvious faults.

9.Isolated compression method.

That is, according to the phenomenon of the fault and the hardware parts, some information about the relevant parts is temporarily disconnected or the original data is simplified to reduce the search range.

10.Procedural testing method.

That is, the use of boot self-test program, advanced special diagnostic program to help find the cause of the fault, the diagnostic program in the form of a menu to provide a number of hard drive, floppy drive, CD-ROM, printer and other detection, if the hardware failure, the display of error, sound to obtain the fault point and its cause.

Find the manufacturer's maintenance, it's best not to do it yourself, and report for repair in time if there is a problem.