How To Fix Microwave Doesn't Heat, Microwave Works But No Heat, Easy Fix
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- čas přidán 7. 06. 2024
- How To Fix Microwave Doesn't Heat, Microwave Works But No Heat, Easy Fix
#how #howto #fix #microwave #easyfix
this Microwave has no heat it doesn't heat water or food at all
the Microwave brand is LG Old Transformer style Microwave
the cause is the high voltage diode was burned that's why Microwave had no heat
to replace it you can find the same part number and order it from either Amazon or eBay or other electronics suppliers
hope this video is helpful please subscribe 🙏 like 👍 and share 🙏 👍
Best regards ✨️
Microwave not heating
1-Diode
The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron to heat the food. If the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. When the diode fails, it is often visibly burned out. Inspect the diode and if the diode is burned out, replace it. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery or put a 9-volt battery in series with the diode. When the leads are reversed, the diode should only have continuity in one direction.
2-Door Switch
Most microwaves have three or four door switches. When the microwave door closes, the door switches actuate in sequence to ensure that the door is closed properly. If any of the door switches fails, the microwave will not start or heat. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches does not have continuity,
3-Magnetron
The magnetron uses high voltage, high current DC power to generate the microwave frequency that cooks the food. If the magnetron burns out, the microwave won’t heat. The magnetron is not repairable-if the magnetron is burned out, you must replace it.
4-High Voltage Capacitor
The high voltage capacitor works with the high voltage diode to convert the output of the transformer to DC voltage and to double the output voltage. If the capacitor is burned out, the entire high voltage circuit will stop working properly, and the microwave won’t heat.
5-High Voltage Transformer
Microwave ovens produce a very high voltage in order to power the magnetron antenna, which emits the energy that cooks the food. When a high voltage transformer fails, it will usually arc and have a burning smell. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor,
6-Thermal Fuse
The thermal fuse cuts off power to the microwave if the microwave overheats. To determine if the thermal fuse has blown, use a multimeter to test it for continuity. If the fuse doesn’t have continuity, replace it
7-Thermoprotector
The thermoprotector cuts off power to the microwave if it overheats. If the thermoprotector trips, the microwave won’t start or heat. To determine if the thermoprotector at fault, use a multimeter to test it for continuity. If the thermoprotector does not have continuity, replace it.
8-Main Control Board
The main control board might be defective. However, this is rarely the case. Control boards are often misdiagnosed-before replacing the control board, check all of the more commonly defective parts. If you have determined that all of the other components are working properly,
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Fantastic video helped me to figure out my microwave thank you so much
Thank you so much 💓 💗 💛
I know that he knows what he is doing after he lit his cigarette when testing the fuse😂
Thank you so much 💓
Very helpful and excellent explanation 👍, your video help me how to solve my microwave 😀
My pleasure 😊 thank you so much 💓
Please let's know if you need any help or questions or concerns will be happy to to answer 😊
Thank you so much and all the best 👍
Thought you had to flip the diode on the tester to change direction of voltage flow??
Good job
Thank you so much and all the best 🙏🙏🙏💗
before instal the new one you show us testing using battries if it is good or not like wrong one doide?
I will check the video and get back to you, thank you and best regards
I am extremely concerned about your method of discharging the capacitor. It would be best if you shorted out the LEFT (set of two connectors) to the RIGHT (set of two connectors). Shorting out one connector (inside the black circular collar) to the one next to it inside the SAME black circular collar is useless. There are a total of four connectors to that capacitor, two inside one black circular collar and two DIFFERENT connectors inside the OTHER black circular collar. But, you are right: it's very dangerous. If there is any voltage remaining in that capacitor and you make a connection to it directly or indirectly through you, you could end up getting killed.
Hello my friend, many many thanks and appreciation for your wonderful comment and great information, I have never attended electronic courses or study I only have experience and little knowledge fixing electrical devices and appliances, I want to study but i honestly don't have time, so what you mentioned in your message is really true helpful information, thank you and all the best 👌 👍
Hello my friend, many many thanks and appreciation for your wonderful comment and great information, I have never attended electronic courses or study I only have experience and little knowledge fixing electrical devices and appliances, I want to study but i honestly don't have time, so what you mentioned in your message is really true helpful information, thank you and all the best 👌 👍
Was just going to write and tell him the same thing. Trouble with these types of videos, If people do not know any better, they will believe what he is showing them is correct, when obviously it is incorrect. Thank you for pointing out his error to him.
The diode reads alot on one end and only 0.01 in the other. Still means it needs replacing?
I am not quite sure about this doide therefore I am making new video about this doide and I will replace it and test it again to see any different, this high voltage doide so it's a tricky to test it with just regular multimeter, thank you so much and all the best 🙏🙂
3:00 If there WAS left-over voltage, what would happen when you touch those leads?
Microwave ovens contain high voltage circuits and components operating at 4,000-5,000 volts (depending on the model). The risk associated with high voltages is exponentially greater than household voltages; electrocution by high voltage will almost certainly lead to death or permanent injury.
your meter has a test for diods right on it arrow with a line is the diod test
Awesome, thank you my friend, and all the best
Where can I buy diode from?
Thank you great sharing 👍
My pleasure 😊
You can buy it from. Ebay cheaper
Or Amazon 😊
No need for batteries to check a diode, with digital meter anode and cathode measurement or flipping positive and negative leads can tell you an open or shorted diode.
Yes that is Right, I used battery for this a spastic high voltage doide just another way to test high voltage doide, thank you so much and all the best 🙏🙂
Is it the same with high voltage diode? Because i check with multimeter buying new one and none of them open. Are my diode are faulty? But with worldrandom menthod with battery it works one way mean its good
@@billykulim5202 yes absolutely right, thank you and all the best 🙏
I changed diedo but still not heating. Any tips?thank you
Hello my friend, did you replace same diode ? I mane same value numbers? If yes and still no heat it's likely that the magnetron in your appliance is broken.thank you and all the best.
🙏🙏🙏
Thank you so much 👍😊👍😊, and all the best ❤️🙏
Did replacing the diode fix Ur problem or did it end up being the magnetron? Mine runs noisy but does not heat.
Hello my friend, I am going to upload a video about that microwave to find out if it was diode or magneton, I will notify you, thank you and all the best 🙏🙂
Hello my friend, here's the new video thank you and all the best 🙏
czcams.com/video/obhd0vUiH18/video.htmlsi=9yQY-lX9rHZMQrZY
First you're not releasing voltage. You are releasing charge of a HV calacitor. And you were wrong in its way. You needed to contact the two pins of the capacitor with the plyer at the same time so it could make a closed loop.
Thank you for teaching me , all the best
Pedantics
@@Leo-gt1bx Useless
You are blind watch again and you will see that he shunt the 2 pins of the Hv
@@DJ_MAD I am glad someone else sees it.
My two grill microwaves don't work the other one it's malfunctioning the door and numbers don't correspond. The other one does not heat😢
If the display screen or touch keys not working it could be fuse of not then electronic board component is burned out,
I tired to check this and had no luck, once I put it all back together the microwave tripped off and now doesn’t even power on… what did I do wrong?
Replace the fuse
Replace the fuse
It could be the fuse had blown out, try to replace it. Thank you and all the best 🙏
Its CL-1 or 01
CL-1 , THANK YOU AND ALL THE BEST.
Discharged capacitor wrong, and tested diode wrong. Sounds like a bad magnetron. Shouldn't be that noisy.
Thank you so much for your helpful message, I will also make another video soon about what I did wrong and update about this issue, best regards
I wouldn’t say it’s a easy fix
Yes, that's right 👍, sometimes microwaves issues get really complicated,hard and tricky, thank you so much 🙏 and all the best 🙏💓
I'm scared to watch this since he didn't short the capacitor the correct way.
Unfortunately I missed one important thing during adding this video the part where the the 2 Screwdrivers touching both terminals to drain the storage voltages, after uploading I couldn't add that missing part so I will try to do something about, thank you so much And all the best
Right! I saw that and was thinking Holy crap we might see some eyeballs pop out of socket! That happened to my nephew's friend.
This diod is ground...
I will make a video soon about this doide , thank you and all the best 🙏
@@WorldRandomVideos I meant why is connected to ground if this diod cornrol heat I hear it control heat
@@HuzaBird0.2 yes it does, this Type of doide is grounded to microwave body but it's controlling heat also, I will do so search to make sure why it is working with microwave heat, and I will do testing video as well, thank you and all the best 🙏
Haha😂noob test diode😅
Thank you 😊🙏