How to diagnose and repair microwave oven | how to check capacitor diode transformer and magnetron

Рет қаралды 145,986

4 жыл бұрын

in this video we talk about how to diagnosed the microwave oven and repair it. check the capacitor diode Magnetron and transformer correctly. if you are going to repair your microwave oven As a homefix, watch this video from the beginning and, discharge High Voltage capacitor in your oven before touch any other component inside. because this high-voltage capacitor can bring deadly High Voltage electrical shock even after disconnect The oven from the wall power connection. please be careful and study first well described video tutorials before open a microwave oven.

Пікірлер: 132

@donmago 2 жыл бұрын

This very practical test procedure is very clear and concise. Well explained and effective. I especially appreciated the concept of continuing testing all main parts if a fuse is found bad. As in all electrical work employing fuses or breakers, there was most likely a reason (failure of a main part such as condenser, diode or transformer) for the trip or blown fuse. Very well done. Thank you!

@awandsun Ай бұрын

You are an excellent teacher. Thank you very much!!

@marcusrice501 Жыл бұрын

Thank you very much, through your video I discovered a shorted magnetron.

@user-js4hv4ez5o 2 жыл бұрын

Thanks a lot. Your video helped me to diagnose the faulty microwave at home. Our 4kv glass fuse was gone. Good simple English.

@hendrixmulusa9658 2 жыл бұрын

Fantastic and well articulated I will definitely try to repair mine when I buy the tester....thanks very much

@conradmeyer8754 4 ай бұрын

Well done and thank you for your effort and knowledge you share. Repairing a micro and with your instructions I found the fault , a faulty capacitor. 👍

@jamesarm1 Жыл бұрын

Thank you! Well done. You helped me troubleshoot my Microwave. Very good instructions!

@carlcarlotti9642 3 жыл бұрын

Thanks for this tutorial. Well and clearly explained.

@janarthrlkatgm Жыл бұрын

Very well explained,with clear visual and demonstrations...thank u

@flavioleonardosouza3929 2 жыл бұрын

I' m here on Brazil fixing may my mcrowave with this great tutorial, thanks Ravi!

@dontworrybehappy9713 Жыл бұрын

Do u buy bitcoin in Brazil?

@shajik.damodaran8156 3 жыл бұрын

Very good video, well explained covering all safety precautions to be observed failing which, can cost yr life. Thanks bro 👍.

@drgupta8207 3 жыл бұрын

Best video and the way of explaining superb ...

@Code2142Loco Жыл бұрын

Ravi, you did a fantastic job on this video! I will use what you taught me, to repair my microwave oven - thanks!

@ravifixall Жыл бұрын

Thank you Warning! You are going to work with High voltage. Safety first. All the best.

@Factz_ 3 жыл бұрын

Great great stuff and well explained my friend.

@adenlove9207 3 жыл бұрын

Weldone Ravi and excellent information

@jerrysmith6795 2 жыл бұрын

Sir u r very expert thanx a lot for sharing your knowledge God Bless You

@abidemimoses3865 Жыл бұрын

This is a simple test practical with correct understanding Nice one

@anilkumarsj8429 3 жыл бұрын

Simply explained very well, 👌👌

@MiscDaily 2 жыл бұрын

One of the best step by step troubleshooting vid

@copperkeyracing6167 2 жыл бұрын

Awesome video. I found the capacitor to be bad on mine, shorted between the two terminals. Fuse blew and monitor switch was recommended (per a sticker on the inside) to be replaced with the fuse, so that'll be replaced also.

@buddhadevdey5637 3 жыл бұрын

Knowledgeable video sir. Thanks

@nunikholhring4153 3 жыл бұрын

Well done bro.. lot of thanks to you

@vsetia4520 2 жыл бұрын

Awesome Explanation! 🙏😊

@naomipettigrew465 2 жыл бұрын

very good video very well explained the capacitator fixed mine

@kaundabwalya7776 Жыл бұрын

So so Wonderfully explained Sir.. U just earned a subscriber +1..keep up with the great work

@carelmotana Жыл бұрын

This is the best video. Thank you!

@DerekCampbellIS 3 жыл бұрын

Very well done...thank you Ravi!

@PavloLukashuk Жыл бұрын

Thanks! You very help me for check diode .Good video ! 👍

@deryck6789 Жыл бұрын

Awesome explanation! Thank you.

@AereForst 2 жыл бұрын

Excellent tutorial. Thank you

@mohammedbyaruhanga4744 Жыл бұрын

Soo clear and precise thank you chief

@Somanathan-hj7ge 6 ай бұрын

Sir,if check only continuity of transformer,if it's short it also give beep, check resistance in 200ohm, and and other checking perfect ok my dearest brother,I know your language is Malayalam, you are very good 👍

@rogierwesterhuis1580 2 жыл бұрын

Great video! Thanks!

@tajiristeve2282 5 ай бұрын

Very elaborate explanation and easy to understand

@walakulageperera2762 3 жыл бұрын

Thank you Ravi Fix for the informative tutorial. I checked every thing in my LG microwave oven using a multimeter. These are my observations. I used continuity testing. Diode is OK, HV capacitor is OK, all the fuses are OK including the thermal fuse. Magnetron is OK. Door switches are OK. HV transformer is OK except for (I am not sure) the high voltage terminal connected to the HV fuse going to the HV capacitor. There was not reading or a beep at this terminal. Microwave oven operates, but it does not heat up the food. I also cleared the front dial. What seems to be the problem? Thank you for your input.

@donlucio1 3 жыл бұрын

Sometimes microwave magnetron has short circuit under voltage.

@AereForst 2 жыл бұрын

I just went through Ravi’s video and followed every step. Turns out that my problem was the high voltage 0.9A fuse had blown. I could immediately tell because that fuse has a spring inside and the spring wire was broken with the spring no longer stretched inside the fuse. Everything else tested okay. I’ve ordered replacement fuses from Amazon. A $0.50 fix. Thanks Ravi.

@geofferyromany4634 3 жыл бұрын

Thank you for the reply. I guess you are right. I suspect that the thermal fuse and the line fuse blew. rather than the capacitor. I will attempt to fix it myself. My first step is to identify the types of fuses and buy them cheaply. If after replacing the fuses it still blows then i will have to change my capacitor etc. for now I just want to confirm that any 20 amp 250v ceramic slow burn line fuse of the same dimension can work?

@samueljee2544 2 жыл бұрын

Good way of explanation

@Shahidhussain30 3 жыл бұрын

Excellent video. My Panasonic inverter Microwave blows fuse while sitting idle. Sometimes after one hour and sometimes after one or few days while door stays closed. I checked all parts are ok and the microwave works good while fuse is not blown. Please give your comments. Thanks,

@a-1tvsalesservicellc186 2 жыл бұрын

Good explanation of microwave.

@Somanathan-hj7ge 6 ай бұрын

Very, very good perfect explanation sir,but what should be the resistance of a good magnetron,in low resistance mode, continuity ok,but should check resistance also,is n't. thankyou very much 😊

@Fardeenfarwest 3 жыл бұрын

Good work ❤️👍

@uptownphotography 8 ай бұрын

Great info.

@bharatelectricals8354 4 жыл бұрын

Nice information thanks.

@Shahidhussain30 3 жыл бұрын

Excellent video.

@crap265 Жыл бұрын

Very good, thanks

@Zarnabverse1234 Жыл бұрын

Very good informative video

@thesultanmerchant 3 жыл бұрын

Sirji, I have GEC microwave table top. While plugging current does not flow and front panel no light. I have checked with multimeter transformer. magnatron, capacitor, diaod, fuse termostate, all ok. I have also checked main cable,it is OK.I have not checked PCB and it is bit complicated. Appreciate if you could response. I am in CHICAgo, USA and here it is 120V.

@seshachary5580 3 жыл бұрын

very nice thank you.

@simplicity6564 Жыл бұрын

Thanks!

@mnbarlas 3 жыл бұрын

Hats off Sir

@user-uy1um8ne9o 5 ай бұрын

You are very good technician but only one thing yoo forgot is to check door switches

@NorbieGonthemic Жыл бұрын

Are all magnetrons standard in power, voltages, watts and ohms, etc., and can be used as replacements in any microwave oven? I'm trying to repair my microwave oven which is just about 2 years old, and the magnetron has stopped working. It's one of those that has a static (hot) plate - not the rotating kind. Can I use a magnetron from a rotating plate microwave oven to repair mine?

@yonatazeben6945 21 күн бұрын

Thank you bro

@amugodavithanage2505 2 жыл бұрын

Excellent

@hiranyashashikelum7608 2 жыл бұрын

thank you 😊 Sir thank you very much 😊❤️

@thesultanmerchant 3 жыл бұрын

how to make sure that capicitor is dischare completely? is there any other equipment to check capicitor?

@syedyaseen2277 3 ай бұрын

Tnakita sir 💯👍

@matthiaswilhelm9813 2 жыл бұрын

Oh,ich glaube das es dir Spass macht solche Videos zu erstellen😎😎😎

@jankillme 2 жыл бұрын

Hi Ravi, Thanks for the video was really informative. I have a microwave which have blown fuse. Tried replacing and running it and blew the fuse as soon as tried to run it. I checked all the other components and could not find any fault with any components. The only thing is I can't find another high voltage fuse between transformer and capacitor. Also when testing the capacitor, do I have to remove the diode and resistor which is attached to the capacitor.

@ivankirola2707 2 жыл бұрын

It might be transformer

@copperkeyracing6167 2 жыл бұрын

I had the same issue. Fuse blew instantly, repeatedly. I tested everything, with the help of the video. There was no fuse between the transformer and the capacitor on mine, either. Then, I unplugged everything from just one terminal on the capacitor and found my capacitor to be shorted between the terminals... which is bad. I did not remove the diode (no resistor on mine) from the capacitor, as that was the side with more items plugged in. I left all connections on one terminal, removed the capacitor from the microwave, and freed up one terminal on the capacitor free of any connections. Then, I used the flux capacitor, and I went back to the future... ok, just kidding. I then ordered a capacitor, because I need my microwave now, not later/future. I'm not going back to the future, I am staying here with my microwave and its new capacitor.😂

@jankillme 2 жыл бұрын

@@copperkeyracing6167 in my case it was actually the magnetron that was blown , however I did not know how to test it. Once replaced that working all good .

@richardohare7708 2 жыл бұрын

But still a good video mate 👍👍

@wittychris3515 2 жыл бұрын

awesome

@colinellicott9737 2 жыл бұрын

Nice safe start ... then safe fail by using dead short on capacitor. Damage cap & tool and create explosion risk !!! Use a large resistor for a few minutes then check the voltage. Then do it again. Then don't die ; )

@marcmeyer5643 Жыл бұрын

🤙 Weell done...

@thesultanmerchant 3 жыл бұрын

does all transformer had soldier pont on top edge?

@thesultanmerchant 3 жыл бұрын

for top fuse you put red wire point of multimeter on left and for bottom fuse you put red wire on right. what if is vice versa? is it dangerous?

@pollydor07 Жыл бұрын

Thanks

@admayo70 3 жыл бұрын

I have done all the checks and every component passed but the microwave is still not heating. What could it be?

@watkinsrcful 2 жыл бұрын

Nice

@pasromano75 Жыл бұрын

Very good

@augustinechinnappanmuthria7042 2 жыл бұрын

Super

@geofferyromany4634 3 жыл бұрын

Hi, Do all microwave use 15-20amp ceramic line fuse? i have a sharp carousel microwave that uses a 20 amp. It blew when I attempted to cook rice in it. It can been over 1 year. Can I buy any 20 amp ceramic fuse to replace it? Thanks

@ravifixall 3 жыл бұрын

Most microwaves use 15 to 20 amp fuse. Before replace the fuse, should check the issue why blown the fuse.

@geofferyromany4634 3 жыл бұрын

also is there any difference between slow and fast?

@thesultanmerchant 3 жыл бұрын

what if soldier point is not there on transformer then ow to check?

@buddhadevdey5637 3 жыл бұрын

Sir, I have a LG CONVECTION Microwave I think it takes high current when switching on immediately ac fuse glow but it microtone ok capacitor on test multimeter seen ok diode test with battery it ok what to do. Give suggestion. Thanks

@ravifixall 3 жыл бұрын

first of all if it is not possible to find something, highly recommend please get professional person assistance. Check for corrosion or oxidized on wire connection. Duble check transformer, Make sure you have replaced right amperage fuse.

@user-zi8vn6gs3i 4 ай бұрын

Please a video on how to fixed washing machine all part

@Efutureeletroniics 3 жыл бұрын

Which wire is F and FA on magtron contecter?

@arjunapeiris981 3 жыл бұрын

Hi I have one maicroweve oven ..this one we put 30 second it working and suddenly off and auto matical one agein .some time work some time not work

@Trypho 2 ай бұрын

❤

@buddhadevdey5637 3 жыл бұрын

Model MG7040NWR, microwave 1350w, Grill 1250w, conversation combination 2650w, originally in ac income supply 12A 250vac. Original fuse white type but now available glass type in market is glass type fuse suitable for above mention. Give suggestions thanks..

@ravifixall 3 жыл бұрын

If same amperage doesn't matter glass or ceramic. Ceramic fuses are more safer when it blow. Glass fuses are harmful when it blow.

@thesultanmerchant 3 жыл бұрын

you did mention very precisely how the red and black lead to placed to check continuity. in some parts you place right leas on right and in some parte red lead put on left and vice e versa. do make it clear to the viewers.

@shafimehar4506 5 ай бұрын

Hello sir if we get 75.4ohms between HV terminal and body. Is it good or bad

@ravifixall 5 ай бұрын

Bad

@nabeelsiddiqui5278 2 жыл бұрын

Hi. I have a microwave . its blast 5kv fuse some time . all components are ok and fine conditions

@ravifixall 2 жыл бұрын

Check all the components as described in the video.

@falola22oluwadare90 8 ай бұрын

What about is the capacitor is not reading with the body is that mean the capacitor ok or bad

@ravifixall 8 ай бұрын

Might be open circuit.

@user-uy1um8ne9o 5 ай бұрын

And also to check TT table motor

@thesultanmerchant 3 жыл бұрын

what if not having 9 volt battery, then how to check diode?

@mhandrabat4024 2 жыл бұрын

Peace be upon you, teacher. I want to ask you about the microwave does not heat up. I changed the fuse, changed the diode, and checked the capacitor, it was good. I checked the micromagnet, it was good. I said, maybe the problem is from the transformer, but the transformer when measured it looks good, but when you run the files inside it, it gets hot and when the transformer watts increases. Coming out of smoke and smell

@zondiwengulube9506 7 ай бұрын

My microwave panel on has a few touch buttons working help fix it pls

@richardohare7708 2 жыл бұрын

The diode is used as part of the voltage doubler, not solely as a means of discharging the capacitor. Also, you did not explain how to test this diode, which is a high voltage diode, and cant normally be tested in the usual way like a lower voltage diode. You need a higher test voltage to forward bias the diode while testing. Hope this is helpful...

@pierretessier1682 Жыл бұрын

You're right Richard! The diode is for the voltage doubler and it's not for discharge de capacitor

@ashrafkarjiker6888 Жыл бұрын

My high voltage capacitor reads 20 megaohms from terminals to chassis is that bad

@rafaimuhammadh521 3 жыл бұрын

Where ur u from

@thesultanmerchant 3 жыл бұрын

for checking the fuse you did not mention the precise way of connecting the two pints of multimeter whether red should be on left and black on right or vice versa for both fuse. you just display but did not mention the precise way of placing both the points of multimeter. what if placed wrong?

@ravifixall 3 жыл бұрын

If you discharged the high voltage capacitor properly, then you don't need to be afraid to touch or check any component. Please follow the procedure explain in the video beginning. To check the fuse no matter polarity, it is just continuity test, you can use any lead to any side, carefully look for a conductive point on the transformer body to chek continuity, should be somewhere around, try it to find it by touching the multimeter lead.

@dennischarles68 Жыл бұрын

I'm not clear on how did you do the high voltage diode testing. Using a 9V battery ? 🤔

@ravifixall Жыл бұрын

I have clearly mentioned in the video that we need a bit higher voltage source to check this diode. Because due to high resistance in the diode, it has a voltage drop. If you use small voltage source like AAA battery, you will not get any reading. Because entire voltage drop in the diode. Hope you understand.

@rajapervaiz9342 4 ай бұрын

Bhai 1 ovan ki Samaj nhi aa rhi fault ki..saray parts chk kiy sab the hen.. megnitron bi change Kiya..campisiter or diod bi Chang Kar Kay dekha.. transformer bi body Kay sath spark Kar Kay chk Kiya wo bi thek hai..switch bi thek hen saray.lekin ovan phir garam nhi Kar rha

@richardmcnair8440 Жыл бұрын

Help….. my GE microwave does not beep after cooking . How can I repair it? Thanks

@ravifixall Жыл бұрын

May be bad buzzer or some microwaves have option to turn off the beep. Read your user manual.

@richardmcnair8440 Жыл бұрын

Did read the manual. Will work sometimes most likely switch are going bad.

@pasromano75 Жыл бұрын

Hi Ravi. My microwave is not working ( only grill is working , not microwave ). The two fuses are OK. I was in doubt with the HV diode, i bought a New diode but nothing. All misures on the capacitor, the magnetron, the HV transformer are OK like your method. I rally dont understand what is wrong with this microwave!!!!

@ravifixall Жыл бұрын

This could be faulty high voltage capacitor. We can mesure it with multimeter if only shorted. But open circuit no any mesurement for normal multimeter. Try to mesure the capacitance with a good multimeter which support for it. Otherwise if it is not expensive for you just replace the capacitor.

@pasromano75 Жыл бұрын

Thank you Ravi. You are very professional !

@pasromano75 Жыл бұрын

Can i measure the capacitance of capacitor with a normal multimeter ? My multimeter has capacitance measurement. What capacitance should i read? I suspect on capacitor because no electric dishange was when shorted the capacitor

@thesultanmerchant 3 жыл бұрын

there is no there is no thermostate on top of magnetron?