Do you have a microwave that turns on when the door is closed? Microwave turns on when door is closed is a common problem. It can be frustrating and dangerous if your microwave starts up while the door is still open. Don’t worry, you’re not alone. Many people have this problem. It’s actually a pretty common issue. But don’t worry, we have a solution for you.
We want to help you fix your microwave as quickly as possible so that you can get back to using it without any problems. We’ll show you how to quickly and easily solve this problem so that your microwave stays safe and reliable. Follow the steps below to fix your microwave.
Why Microwave Turns On When Door Is Closed?
There are many causes for microwave turns on when door is closed:
Bad Control Board
The first and most common reason for a microwave to turn on when the door is closed is a bad control board. The control board is the part of the microwave that controls all the functions, including the door sensor. If the control board is bad, it may not be able to properly sense when the door is open or closed, causing the microwave to turn on even when the door is closed.
Bad Door Switch
Another common reason for a microwave to turn on when the door is closed is a bad door switch. The door switch is what tells the control board if the door is open or closed. If this switch is not working properly, it can cause the microwave to turn on when the door is closed. You can check the door switch for continuity with a multimeter. If the switch is open, then it will need to be replaced.
Dirty Door Sensor
The door sensor is a small optical sensor that is located on the control board. The door sensor reads the infrared light that is emitted from the door latch when the door is closed. If the door is opened, the infrared light is no longer detected, and the control board will send a signal to the motor to stop. The door sensor is used to keep the motor from running when the door is open.
The most common cause of a dirty door sensor is dust or dirt on the lens of the sensor. This can cause the sensor to not detect the infrared light, and the motor will continue to run. To clean the door sensor, use a cotton swab or a soft cloth to gently wipe the lens clean.
If the door sensor is still not working after cleaning, it may be necessary to replace it. The door sensor is a small black plastic piece that is located on the control board.
Faulty Wiring
Another possibility is that the wiring between the door switch and the control board is faulty. If there is a break in the wire, it can cause the microwave to turn on when the door is closed. It is because, when the door is opened, it disrupts the flow of electricity and causes a break in the circuit. If this is the case, then you will need to replace the wiring.
Bad Interlock Switch
One more reason why your microwave may turn on when the door is closed is a bad interlock switch. The interlock switch is what prevents the microwave from turning on when the door is open. If this switch is damaged or not working properly, it can cause the microwave to turn on even when the door is closed.
It is because the switch is not allowing the microwave to turn on when it should. If you think this may be the problem, you will need to replace the interlock switch. You can do this yourself or hire a professional to do it for you.
How To Fix Microwave Turns On When Door Is Closed?
Here are some ways to fix microwave turns on when door is closed:
Check the Door Switch for Damage or Debris
The door switch is a safety device that prevents the microwave from turning on when the door is open. If this switch is damaged or dirty, it may cause the microwave to turn on even when the door is closed. Inspect the door switch for any damage and clean it if necessary.
To fix damaged door switch, you first need to remove the switch from its housing. Once the switch is removed, you can either repair it or replace it with a new one. Moreover, you can also clean the switch with a cloth to remove any debris.
If you did not find any damage, then check if there is anything blocking the switch. Debris or food particles can sometimes block the switch and prevent it from functioning properly. If the door switch is not the problem, then there might be an issue with the door itself. The door may not be closing properly due to a misaligned hinge or a bent door. In such cases, you will need to adjust the hinge or replace the door.
Clean the Door Gasket
The door gasket is a rubber seal that helps to keep the microwaves contained within the oven cavity. If this gasket is damaged or dirty, it can cause the microwaves to leak out and turn on the microwave when the door is closed. Inspect the door gasket for any damage and clean it if necessary.
To fix a damaged door gasket, you will need to replace it with a new one. You can purchase a replacement door gasket from most appliance stores or online retailers. You can also find instructions on how to replace a door gasket in your microwave’s owner’s manual.
If the door gasket is dirty, you can clean it with a damp cloth and mild detergent. Rinse the gasket well and dry it completely before reinstalling it. You can also clean it with a mild detergent and warm water. Rinse the gasket well and dry it completely before reinstalling it. You can also clean the door gasket with a special cleaning solution made for microwaves. These solutions are available at most appliance stores.
Check the Door Seal for Damage or Gaps
The door seal helps to keep microwaves from escaping the oven cavity. If this seal is damaged or there are gaps in it, microwaves can leak out and turn on the microwave when the door is closed. Inspect the door seal for any damage or gaps and replace it if necessary.
You can purchase a replacement door seal from most appliance stores or online retailers. You can also find instructions on how to replace a door seal in your microwave’s owner’s manual.
If you cannot find a replacement door seal, you can try sealing the gaps with silicone caulk. Apply the caulk to the gaps and smooth it out with your finger. Allow the caulk to dry for 24 hours before using the microwave. After that, you can use the microwave as usual. You can also use duct tape to seal the gaps. Apply the tape to the gaps and smooth it out with your finger. Allow the tape to dry for 24 hours before using the microwave.
Check for Loose Screws
Loose screws can cause the door to misalign and prevent it from closing properly. This can cause microwaves to leak out and turn on the microwave when the door is closed. Inspect the door for any loose screws and tighten them if necessary.
You can use a screwdriver to tighten the screws. If you cannot find the screws, you can try looking for them in your microwave’s owner’s manual. In order to tighten the screws, you should follow our guides.
The first step is to take out the Phillips head screws. After taking out the two screws, you will need to grab a 7/64th hex key. With the help of the key, tighten all four screws on each side of the door. Tightening these screws should fix your problem with the loose screws and your microwave door should close properly.
Check the Hinges for Damage
The hinges help to keep the door aligned and prevent it from swinging open too far. If the hinges are damaged, the door can become misaligned and cause microwaves to leak out. Inspect the hinges for any damage and replace them if necessary.
You can purchase replacement hinges from most appliance stores or online retailers. You can also find instructions on how to replace hinges in your microwave’s owner’s manual. You can also try to fix the hinges by tightening or loosening the screws that hold them in place. Use a screwdriver to turn the screws clockwise or counterclockwise until the hinge is tight or loose enough to move freely.
If you notice any damage to the door or hinges, it is important to replace them as soon as possible. Damaged microwave doors can cause microwaves to leak out, which can be dangerous. If you are not sure how to replace the door or hinges, you can contact a qualified appliance repair technician for assistance.
If the hinges are damaged beyond repair, you may need to replace the entire door. Replacement doors can be purchased from most appliance stores or online retailers. You can also find instructions on how to replace a microwave door in your owner’s manual.
Check for Loose Wiring
If there is loose or damaged wiring in the microwave, it can cause the microwaves to turn on even when the door is closed. Inspect the wiring for any damage or loose connections. If you find any damage, you should replace the damaged wiring.
You can purchase replacement wires from most appliance stores or online retailers. You can also find instructions on how to replace wiring in your microwave’s owner’s manual. If you are not sure how to replace the wiring, you can contact a qualified appliance repair technician.
To fix the loose wiring, you should follow our guides. The first step is to identify the problem. If there are any loose or damaged wires in the microwave, you should replace them. You can purchase replacement wires from most appliance stores or online retailers. You can also find instructions on how to replace wiring in your microwave’s owner’s manual. If you are not sure how to replace the wiring, you can contact a qualified appliance repair technician.
The second step is to unplug the microwave from the power outlet. Once the microwave is unplugged, you should remove the damaged or loose wires. You can use a pair of wire cutters to cut the wires. Once the wires are removed, you should dispose of them properly.
The third step is to reattach the new wires. You should start by attaching the black wire to the black terminal. You can then attach the white wire to the white terminal. Finally, you should attach the green wire to the green terminal. The fourth step is to replug the microwave into the power outlet. Once the microwave is plugged in, you should test it to make sure it is working properly.
These are some ways to fix microwave turns on when door is closed. If you have any other questions or concerns, please feel free to contact us. Thank you for choosing us as your go-to source for all things home!
FAQs
How can I Prevent My Microwave From Turning On When the Door is Closed?
One way to prevent this from happening is to install a microwave door switch. This switch will sense when the door is open or closed and will not allow the microwaves to turn on if the door is closed. Another solution would be to keep the microwave oven clear of any obstruction so that it cannot turn on accidentally. For example, you could place something in front of the microwave oven door to block it from opening. Finally, you could simply unplug the microwave oven when it is not in use.
How to Clean Microwave?
To clean your microwave, start by removing the turntable. Then, mix together a solution of one part vinegar and two parts water. Use a sponge or cloth to wipe down the inside of the microwave, making sure to get into all the corners and crevices. Finally, rinse the area with warm water and dry it off.
What are The Consequences of a Microwave Turning on with the Door Open?
If the microwave turns on with the door open, it can cause serious damage to the food inside. Additionally, it can cause interference with other electronic devices in the area. Finally, it is a safety hazard because it can emit harmful radiation.
Conclusion
Why microwave turns on when door is closed? It has been discovered that when a microwave oven’s door is closed, the microwaves it emits can cause an electric current to flow through the metal of the door. This electric current is what turns on the light and starts the cooking process.