How to repair a laundry machine / washing machine won't turn on problem / PCB control repairing

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How to repair a laundry machine / washing machine won't turn on problem / PCB control repairing

Рет қаралды 67,905

Күн бұрын

The fallowing video is about how to repair laundry machine main board using a step by step procedure of inspecting and measuring each electronic component in the washing machine´s power supply. There is a 2nd video about service made easy in the link:
• Laundry machine servic...
(The procedure steps can be applied to many brands like Gorenge, Electrolux, Whirlpool, Samsung, GE, and many other brands independently of the PCBA design and its different electronics components).
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Thanks for watching it!
In the minute 7:12 I showed a mistaken datasheet marked line for the varistor. The page is correct, but the correct line is the line before the line shown. My apology for it!

Пікірлер: 54

@DIYtimeTech 4 жыл бұрын

Thanks a lot, very helpful. I just recently fixed my broken Samsung washer!

@carlosluissantander4359 3 жыл бұрын

This is just superb, been searching for "what is the best way to clean circuit boards?" for a while now, and I think this has helped. You ever tried - Giyathan Bewildering Gratification - (should be on google have a look ) ? It is a great one off guide for discovering how to repair your electronic items like a wizard minus the normal expense. Ive heard some great things about it and my cousin got great results with it.

@Channel-tr1hx Жыл бұрын

congrats. great video! everyone has a waching machine but few videos on those topics

@ep_dimi 3 жыл бұрын

Best explanation. Thank you very much! It would be nice if you analyze the ideal ohm and watt for the shunt resistor.

@apsenpai8086 5 жыл бұрын

Nice tutorial Mr Bob .

@mikebrunt4099 4 жыл бұрын

Hey Bob. Kalpon this is a fantastic video thank you. Bob if the board is fried like this. 1. In a "commercial laundry premises "is it best to replace the whole board quickly so that the Laundry can make money reliably fast? 2. If the board is fried has this been caused by other problems in the washer machine - A. How do you know? B. Do you need the board to work to see mechanical problems in motors etc. C. How do you test mechanical problems in motors etc without power? Thank you Mike

@KingKong-mp6gj 2 жыл бұрын

The black smoke on the IC is probably carbon dust from the motor's brushes. It gathers around the die area of semiconductors dealing with high voltage due to electrostatic force. You will find it too on the small triacs which switch the drain pump or the inlet valves. No indicator for a bad chip.

@alexjohansson5485 5 жыл бұрын

Great tutorial !!

@bob.kalpon1398 5 жыл бұрын

Thanks Alex! ...there is a new uploaded video about laundry machine service made easy. It is the 2nd part of this one. This video is focused in how to service the control board. The new video is about easy understanding of laundry machine parts for its technical service. Please search for the new video in my videos list. Thanks by watching.

@alexjohansson5485 5 жыл бұрын

@@bob.kalpon1398 will do! thanks for your reply !

@1chamoy20006 3 жыл бұрын

Wow amazing still!

@enforcementofficer4802 3 жыл бұрын

Thank you - great video and very clear :)

@jessgone 7 күн бұрын

I have the same board, it works fine for about 2-3 minutes, than it suddenly resets, and restarts the program from the beginning! What could be the problem?

@johnjcb4690 3 жыл бұрын

really nice but at my Daewoo DWD M9041 Cant find a worth electrical scheme so i will just try component with measure. But i have to know ecatly what values i should get , so i guess it s npt many choices for me

@ser7ser7i 4 жыл бұрын

Thank you, very helpfull.

@suhailasaba1051 4 жыл бұрын

Great video

@nothingelsematters8217 2 жыл бұрын

You v good 👍 really I follow allot you best but but.... 1st what is Multimeter ..v or a or buzz.. 2nd link for sites you used.. 3d.....data sheet link... 4 explan where to start.in the map work.....

@HandyTim 2 жыл бұрын

What are tiny black blocks called that sit around that chip

@ausseamore8386 10 ай бұрын

thanks

@1chamoy20006 4 жыл бұрын

Amazing

@joseramongarciagomez6889 5 жыл бұрын

Como todos sus vídeo tutoriales, Excelente. Profesor, ¿De cual página podemos descargar las tablas de ESR.? Muchas gracias y saludos desde Venezuela.

@bob.kalpon1398 5 жыл бұрын

¡Bendiciones Ramón! Yo no uso tablas. Con la marca del fabricante del capacitor, valor en faradios, voltaje y algunas letras especiales impresas en el capacitor que indican el modelo, busco el datasheet del fabricante. De esa forma evitamos los errores. (Ejemplo: en un browser escribo; Rubycon 25v220uF YXG datasheet y busco entre los resultados la ficha actual de mi capacitor). Algunas veces el componente fue reemplazado por una nueva versión, y hay notas de "product changing" que indican la nueva ficha técnica para el próximo reemplazo.

@leoetcheverry9685 3 жыл бұрын

Did it work in the end ?

@Mrswhoridin 4 жыл бұрын

I have a motor control board that is bad. I see what is wrong but I am not sure how to go about fixing it. Would you be able to help?

@abdulmateenmahmood1465 2 жыл бұрын

yes but how do you know which electrical component is not working if this makes sense.

@didi5725 4 жыл бұрын

Hi bob thanks a lot for lecture . so i have Q. i have ocean 10 kg automatic washing machine these machine no power then 27 ohm resistor is burn what is the possible cause and action to be taken . lease help me .

@bob.kalpon1398 4 жыл бұрын

Hi! In electronics any component can be the problem. Most of the time we find a bad component, but it the result of the failure and no its origen. It is the reason why I recorded the video. We must test all the components in the stage. My resistor was "burned" without smoke marks, the PWM chip was smoked, but the origen of the problem was the defective capacitor. The capacitor was not bad, but out of specifications. and the problem. You must test all, and change what is bad, out of specs, and what is good, but it is time to renew to avoid future failures and customer to come back with other damage, but asking for the same warranty.

@jimmydelgado2776 3 жыл бұрын

What size is the voltage regulator and are are they all 5 volts

@pacientezero777 5 жыл бұрын

Bob un saludo, siga hablando acerca del aprendizaje, negocio de electronica para inspirar a otros

@bob.kalpon1398 5 жыл бұрын

Voy a hace más. Tengo algunos vídeos que nunca subí. Tal vez pueda compartirlos.

@MrSilv55 4 жыл бұрын

Hi BoB ; thanks for all the great repair clinic; i also have a wash machine but different mod, it's a Maytag MVWC465HW and it's dead soi i suspect power board W10857311 ,but no support or parts, and i also suspect that AC_DC Off line switch chip, but i can't see the chip info cause the board and components are covered with electronic protection wax , so it's going to hard to find this chip ,with no info from Maytag or anywhere ,i'm stuck, so can you help me ,thanks

@bob.kalpon1398 4 жыл бұрын

Hi! There are technicians who remove the wax or silicon. There are also groups in Facebook for washing machines repairing. It is better to ask them for help, because some of them already got the same situation and I Know they open a window right where they have to test o repair saving a lot of time and complications. Ask them, and they will help.

@tectsujan3470 2 жыл бұрын

Good

@MrMadbrowncow Жыл бұрын

He sounds like a Mexican Bob Ross

@kerrigan. 8 ай бұрын

why cant you test the capacitors "in circuit"?

@issasadouni182 3 жыл бұрын

Hi my hisense washing machine not spine do u know why? Power coming door lock but not spine and after that f22 error coming.

@rickeykeeton71 4 жыл бұрын

When checked the capacitors installed, did you use a multimeter set on ohm setting, or did you use an ers meter?

@bob.kalpon1398 4 жыл бұрын

Hi! Until minute 3:30 it is in continuity or resistance to detect short or linkage. After it trough hole caps I removed them and tested one by one. (ESR measurement is important in electrolytic capacitors).

@rickeykeeton71 4 жыл бұрын

Bob. Kalpon I just recently learned about ESR meters. Going to have to get one, I intend to learn more about diagnosing these boards and other electronic components. I have always used regular DMM for checking components of appliances. I am just now attempting to learn more on the subject of electronics. My DMM does have a capacitance setting. I bought it for that purpose for checking caps on washing machines. I now know I need a different meter. Since we are on the subject, do I need to use an ESR to check washer motor start capacitors?

@bob.kalpon1398 4 жыл бұрын

@@rickeykeeton71 OK, this is the best advice: capacitors, must be measured outside of the PCB, no mater what anybody else says about to measurements on board. That's the proper way because we don't want components in parallel with it.

@rickeykeeton71 4 жыл бұрын

Bob. Kalpon that is something else I need to learn, how to read schematics so I know what powers up first, which component depends on another component upstream and so on.

@mithunnikiyoutuber5170 2 жыл бұрын

My sharp front load washing machine while starting control it showing error END messages can you help me for this problem how resolved

@WiNktub 5 жыл бұрын

Hello Mr Bob. I can''t find the right wiring order for my control. My washing machine is perfectly fine just can't figure out the order of the wires :( Any sugestion, please ?

@bob.kalpon1398 5 жыл бұрын

Hi! There are Facebook groups for repairing. Ask for help with brand, model, pictures, and some of them will help you with their experience in your machine's model.

@bob.kalpon1398 5 жыл бұрын

Hi Teodor! ...did you get any help from them?