How to repair a laundry machine / washing machine won't turn on problem / PCB control repairing
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- čas přidán 14. 07. 2019
- 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! - Věda a technologie
Thanks a lot, very helpful. I just recently fixed my broken Samsung washer!
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.
Nice tutorial Mr Bob .
Best explanation. Thank you very much! It would be nice if you analyze the ideal ohm and watt for the shunt resistor.
Thank you - great video and very clear :)
congrats. great video! everyone has a waching machine but few videos on those topics
Thank you, very helpfull.
Great video
Amazing
Wow amazing still!
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
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.
Great tutorial !!
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.
@@bob.kalpon1398 will do! thanks for your reply !
Como todos sus vídeo tutoriales, Excelente. Profesor, ¿De cual página podemos descargar las tablas de ESR.? Muchas gracias y saludos desde Venezuela.
¡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.
What are tiny black blocks called that sit around that chip
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
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?
What size is the voltage regulator and are are they all 5 volts
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
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.
Hi my hisense washing machine not spine do u know why? Power coming door lock but not spine and after that f22 error coming.
nice
Did it work in the end ?
Bob un saludo, siga hablando acerca del aprendizaje, negocio de electronica para inspirar a otros
Voy a hace más. Tengo algunos vídeos que nunca subí. Tal vez pueda compartirlos.
When checked the capacitors installed, did you use a multimeter set on ohm setting, or did you use an ers meter?
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).
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?
@@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.
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.
Good
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 .
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.
My sharp front load washing machine while starting control it showing error END messages
can you help me for this problem how resolved
yes but how do you know which electrical component is not working if this makes sense.
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 ?
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.
Hi Teodor! ...did you get any help from them?
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.....
why cant you test the capacitors "in circuit"?
Dear sir i wont know about please help me
He sounds like a Mexican Bob Ross
Boss ask q lng,,,pwd mka hingi nh cp ,number mo?
Watsing matsin hahhaha
Sorry but measuring with electric on or 👎
Voltage drops not resistance poor trouble shooting information
मुझे न्यु पीसीबी चाहिए
आपका मोबाइल नंबर भेज दीजिए।
thanks