
- Turn the circuit breaker to the microwave off and back on.
- Check that the microwave's power cord is plugged in to the outlet securely, and hasn't come loose. ...
- If the alternate device does not power on, this indicates that the outlet is not receiving power. A certified Electrician will need to be contacted to check the outlet.
How to fix a microwave that is not working?
The Diode
- Unplug the microwave.
- Take out the screws at the top of the front grille then take out the grille.
- Take out the screw securing the control panel. ...
- Lift the panel up then out.
- Take out the screws securing the inner access panel.
- Remove the access panel.
- Discharge the capacitor by placing a pair of pliers across its two terminals.
How to fix LG microwave?
The Door Switch
- Turn off the microwave and unplug.
- Take out all the screws on the left side, right side, and back of the microwave to remove its cover.
- After taking out all the screws, remove the microwave cover.
- Behind the control panel you will see three door switches, take the first one out.
What would cause a microwave to stop working?
- Before you begin testing, unplug the microwave oven power cord.
- Since high voltage capacitors used in microwaves may retain a charge even after the power cord has been unplugged, it is recommended to discharge the capacitor before servicing. ...
- Remove the fuse or thermoprotector from the appliance.
Why is my Whirlpool microwave not working?
- The microwave powers on but won’t work
- A thermal fuse stops electric current flows to your microwave as a safety setting. It helps prevent the microwave from overheating. ...
- If there’s no continuity, it means the fuse needs to be replaced.

What causes microwave not to switch on?
The most common cause for a microwave oven not working at all is a blown main fuse. The microwave main fuse will cut the flow of electricity if too much current passes through it.
How do you reset a LG microwave?
0:001:00[LG Microwave] How To Reset Your LG Microwave Oven - YouTubeYouTubeStart of suggested clipEnd of suggested clipHow to reset an lg microwave oven if the controls on your lg microwave oven are not responding orMoreHow to reset an lg microwave oven if the controls on your lg microwave oven are not responding or working properly then try performing a hard reset to do this first locate the power plug to the unit.
Why did my LG microwave just stop working?
There are a couple of reasons why your LG microwave isn't heating or turning. It could be a child lock is activated, a failed diode, or a turntable motor. It could also be the magnetron needs replacing.
What to do when microwave Start button not working?
0:061:26Top Reasons Microwave Buttons Not Working - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe most likely cause is a faulty touchpad. And control panel try pressing each of the control panelMoreThe most likely cause is a faulty touchpad. And control panel try pressing each of the control panel buttons.
How do I know if my microwave fuse is blown?
1:544:48$2 Microwave Fix - Test/Replace Fuse - YouTubeYouTubeStart of suggested clipEnd of suggested clipTogether we should see point zero. One if we see nothing that means that wire is broken. And theMoreTogether we should see point zero. One if we see nothing that means that wire is broken. And the fuse is blown. And we see nothing which means no wire connection. This is a blown fuse.
How long do LG microwaves last?
The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance.
Where is the fuse located on a LG microwave?
Look for the three fuses in the LG microwave -- one at the lower-right corner, one in the upper-right corner and one in the top center. Check each of the fuses to see if any of them look dark in color; this indicates a burned-out fuse.
Is there a reset button on microwaves?
Step #1 The Soft Set This is commonly referred to as a soft reset of a microwave oven or of just about any device. Push the Off/Clear button. Some microwaves may have a Stop/Cancel button instead of the Stop/Clear option.
Are microwaves worth repairing?
Consider a replacement if you have a basic model that can cost as little as $60. On the other hand, an expensive model with special features or a mounted microwave might be worth repairing. High-end microwave models can run from $500 to $1,000, so repairing these devices is often cheaper than replacing them.
Where is microwave fuse located?
Microwave ovens use one or more thermal cut-outs, sometimes called thermal fuses, to protect the oven from overheating. They are located inside of the cabinet, often near the oven cavity or the magnetron.
What are common problems with microwave?
Microwave not heating is one of the most common problems with microwave. Most popular reason behind this issue is magnetron failure. A magnetron uses high voltage to produce microwave frequency to cook food. If the microwave is turned on when it is empty, this cause the magnetron to burn out.
How do I reset my microwave?
Microwaves can stop responding due to software glitches or unintended microwave settings. Press the cancel/reset button to do a soft reset on your microwave. If necessary, perform a hard reset by unplugging your microwave for 30 minutes, then plug it back in.
Is there a reset button on the LG microwave?
Press and hold the START/ENTER key again for approximately 4 seconds. The L indicator or lock icon should disappear from the display. If the controls are still not responding, attempt a reset on the microwave by unplugging the unit for 2-3 minutes. Plug the microwave back in and attempt the use the microwave again.
How do I reset my microwave?
Microwaves can stop responding due to software glitches or unintended microwave settings. Press the cancel/reset button to do a soft reset on your microwave. If necessary, perform a hard reset by unplugging your microwave for 30 minutes, then plug it back in.
Does LG oven have a reset button?
When you need to reset your LG oven, first, locate the circuit breaker. Once you found the breaker, turn it OFF. Wait for one minute before turn ON. After one minute, turn the circuit breaker back ON to reset.
How do I fix the digital screen on my LG microwave?
LG microwaves are similar to others in how it is reset. You must unplug it, wait about three minutes, and plug it back in. This is called a “hard reset” and it will reset the control board. Most of the time, this is will fix simple problems like clearing error codes, display issues, and some power issues.
Why is my microwave not heating?
When the microwave oven does not heat, it may be caused by entering the wrong settings or an inadequate power supply. The microwave should display an error code if there is a severe problem which requires a technician. If there is no error code on your microwave's display screen, then let's troubleshoot.
What is an error code on a microwave?
Error codes help technicians to identify what may affect the microwave's functionality. Apart from door error code, it is advisable to request for a professional technician to fix any other type of error code on your microwave.
How does an oven sensor work?
When the internal sensor detects a certain amount of humidity coming from the food, it tells the oven how much longer to heat. Quickstep to fixing sensor cook issues: Deactivate the sensor cook or sensor reheat.
How to test if microwave is hot?
The first step, let's test the microwave: Place a microwaveable safe cup, mug, or bowl of water inside the unit. Press CLEAR/OFF or RESET to clear the keypad. Press COOK and enter 60 seconds. Check the water to see if it was heated.
How to adjust the power level on a microwave?
The power level is adjustable by pressing the power button on your microwave . To know more about power level, check the power level table below, or refer to the owner's manual of your microwave. Download a copy of your owner's manual from our Manuals and Document page.
How long does it take to reset a microwave?
If the controls are still not responding, attempt a reset on the microwave by unplugging the unit for 2-3 minutes. Plug the microwave back in an attempt to use the microwave again.
How to clear microwave?
Press the STOP/CLEAR button on the microwave's keypad.
LG Microwave is Not Working But Has Power
If your LG microwave is not working but has power, it could be the result of one or more faulty components. So, let us get right into how to replace them…
The Line Fuse
One reason your LG microwave is not working but has power may be because of a blown line fuse. To test and replace the line fuse in an LG microwave, do the following…
LG Microwave Some Buttons Are Not Working
If some buttons on your LG microwave are not working, the control panel is faulty. In order to get it operating properly again, you will need to replace the control panel. To do this, follow these steps…
LG Microwave Light Bulb Not Working
If the light bulb of your LG microwave is not working, you will need to replace the light bulb. To replace the light bulb in your LG microwave, simply follow these steps…
Why won't my microwave start?
If your microwave oven won’t start, you may have a problem with a door switch. The door switches, often referred to as primary or secondary interlock switches, provide power to the various components in the microwave when the door is in a closed position, and interrupt power when the door is open. Sometimes it is possible that when a door switch fails, the display and controls may appear normal, but the oven won’t operate. The interlock switches are located inside the cabinet and are activated by hooks or latches on the door. Unplug the unit and remove the cabinet. The interlock switches will have wires attached to the terminals that are marked common (C) and normally open (NO). You can check the switches for continuity using a multi-meter. With the actuator button depressed, you should see continuity between these terminals. If there is no continuity the switch will need to be replaced. You should also verify that the door hooks properly engage the switch actuator when the door is closed and adjust or replace it if necessary.
Where is the ceramic fuse on a microwave?
The ceramic fuse is located inside of the cabinet near the entry point of the power cord. Remember to unplug the cord before attempting any repairs. You can check the fuse for continuity with a multi-meter.
Where are the thermal cut outs on a microwave?
They are located inside of the cabinet, often near the oven cavity or the magnetron. If the thermal cut- out fails, power is interrupted to the controls or to the control outputs.
Why won't my microwave turn on?
There are many reasons your microwave won’t turn on, one of which might be a faulty door switch . The door switch, also known as an interlock switch, signals other microwave components to begin powering when the door is closed, and to stop when the door opens.
How to inspect a microwave?
As with most microwave inspections, begin by unplugging your appliance. The door latch assembly will be found attached to the door; you will need to remove the inner door panel in order to access it. To inspect it closely, remove it from the appliance.
How to test a ceramic microwave fuse?
How to test a microwave ceramic fuse with a multimeter: Unplug your microwave before starting this test. The ceramic fuse will be found near the power cord. Remove the microwave’s cabinet, locate the fuse, and remove it in order to test it for continuity. Set your multimeter to Rx1 and touch the probes to the fuse’s terminals.
What to do if your door switch does not have continuity?
If your switch does not have continuity between the terminals, you will need a replacement door switch.
Why is my microwave not turning?
If the microwave turntable is not turning the glass tray drive coupling could be broken or stripped out. Gently pull the coupling off the drive motor shaft to inspect the drive coupling for damage.
How to tell if touchpad is defective?
First, test the turntable motor. If the motor is not defective, it is possible that the touchpad is defective. To determine if the touchpad is defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad.
Can a turntable motor be defective?
The user control and display board might be defective. However, the turntable motor is much more likely to be at fault. First, test the incoming power to the turntable motor. If the motor is not getting power, the user control and display board may be defective. If the user control and display board is defective, replace it.
