Panasonic Ceiling Fan Repaired

By on August 22, 2014
panasonic ceiling fan board

 

 

 

 

 

 

 

 

 

A friend of mine brought to me his friend’s ceiling fan circuit board for repair. The complaint was no response when the remote control was pressed. He did not suspect the remote control because he could use that remote control to turn on another similar fan. The first thing I did was to look at the board and see if there is any burnt component and dry joints. There were no burnt components and dry joints.

panasonic ceiling fan board

Since I do not have the complete fan with me to hook up for testing, the only thing that I can do is to check some of the suspected components like fuse, capacitors, diodes and transistors. The first component I checked was the main fuse and it was fine. The next component was the big black square capacitor. To my surprise the capacitance value was way out.

 

It was a .82uf  275v capacitor and it measured only .142uf (see the photo below).

panasonic ceiling fan board repair

The rest of the corresponding components checked to be good so I presumed only this capacitor was the cause of the problem.

scr

Note: A shorted semiconductor could cause a circuit to cease operation thus it is a good practice to check on other components also.

Since I do not have the schematic diagram, I have to view the circuit from the back and to find out why this capacitor could cause the fan not to function. When I traced this capacitor circuit I found that it was actually connected in between one of the main ac line with another circuit. One of the functions of capacitor is to block DC and let AC to pass through. Since this capacitor value was so low thus there would be very low AC signal can pass through causing no response when the remote control was pressed.

panasonic ceiling fan board repairing

After the replacement of the capacitor was done, I gave it back to my friend. He then sent it back to his friend and fixed it- the fan worked like a charm.

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73 Comments

  1. Yogesh Panchal

    August 22, 2014 at 1:47 pm

    Sir,
    Thanks for sharing by the way what type of capacitor is this.

    Likes(11)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 2:50 pm

      Hi Yogesh,

      It is a Metallized Polyester Film Capacitor.

      Jestine

      Likes(11)Dislikes(1)
      • ravi

        August 22, 2014 at 9:58 pm

        Thanks for the sharing..sir
        God bless...

        Likes(2)Dislikes(0)
  2. Robert

    August 22, 2014 at 2:00 pm

    Good job Mr. Yong.

    Likes(2)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 2:46 pm

      Hi Robert,

      You are welcome!

      Jestine

      Likes(3)Dislikes(0)
  3. moshe

    August 22, 2014 at 3:14 pm

    very nice jestine, thank you for sharing!!

    Likes(3)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 3:28 pm

      HI Moshe,

      You are welcome!

      Jestine

      Likes(2)Dislikes(1)
  4. skwong

    August 22, 2014 at 4:57 pm

    Great job done. Capacitors in remote ceiling fan always give problem after runing a number of years especially the 3 red metalized film capacitors. When you have speed problem check these capacitors.

    Likes(5)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 8:03 pm

      HI Skwong,

      Thanks for the suggestion.

      Jestine

      Likes(2)Dislikes(1)
  5. hongkongpom

    August 22, 2014 at 6:01 pm

    Great job Jestine I am a big fan of yours!

    Likes(3)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 8:05 pm

      Hi Hong Kong Pom

      Thanks.

      Jestine

      Likes(2)Dislikes(0)
  6. Mike

    August 22, 2014 at 7:37 pm

    Excellant work Mr. Yong. Thanks for sharing it.

    Likes(2)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 8:04 pm

      HI Mike,

      You are welcome.

      Jestine

      Likes(2)Dislikes(0)
  7. Anwar Shiekh

    August 22, 2014 at 8:10 pm

    Working blind (without the ability to test the circuit) seems tough.

    Likes(2)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 8:17 pm

      Hi Anwar,

      This is the only choice I have- No schematic and without complete system.

      Jestine

      Likes(3)Dislikes(1)
  8. Corriette

    August 22, 2014 at 8:34 pm

    i agree with this. i have had problems in tv too and such caps can be the problem. thanks sir Yong

    Likes(3)Dislikes(0)
    • Jestine Yong

      August 22, 2014 at 9:09 pm

      Thanks to all.

      Jestine

      Likes(3)Dislikes(0)
  9. Darcio

    August 22, 2014 at 9:29 pm

    Probably this capacitor is part of a capacitive power supply for the low voltage section, that explains the non-functioning remote control.
    Good Job, Mr. Yong!

    Likes(4)Dislikes(0)
  10. Merlin Marquardt

    August 22, 2014 at 9:45 pm

    Very nice.

    Likes(3)Dislikes(0)
  11. Tom Dunaj

    August 22, 2014 at 10:00 pm

    I always enjoy articles.
    Do you repair printers?

    Likes(2)Dislikes(0)
    • Jestine Yong

      August 23, 2014 at 10:28 am

      Hi Tom,

      I only repair the power board.

      Jestine

      Likes(2)Dislikes(0)
  12. Faustino Reyes

    August 22, 2014 at 10:01 pm

    excellent, on many occasions so the reality is, no diagrams and no apparatus to test only this card and the problem.
    You are a Master

    Likes(4)Dislikes(0)
  13. kazeem okesola

    August 22, 2014 at 10:11 pm

    very good to detect a capacitor

    Likes(3)Dislikes(0)
  14. Humberto

    August 22, 2014 at 11:10 pm

    Good repair, look how a little cap (in value) could cause a malfunction of a whole device. Congratulations.

    Likes(3)Dislikes(0)
  15. beh

    August 23, 2014 at 1:21 pm

    HI MR YONG
    thanks for your interesting repair report and about the new book of MR KENTi have to tell that i studied 40 pages of this valuable book so far and i found many new useful repair points specially for repair of mother boards of tvs and also the informations are expandable to mother boards of tv satelite recives that is published in the world of repair for the first time i strongly recommend the study of this book to all members as well as all the friends
    thanks jestin thanks kent

    Likes(5)Dislikes(0)
    • Robert

      August 23, 2014 at 8:13 pm

      It seems like a pretty good book to me also.

      Likes(3)Dislikes(0)
  16. Leo Saldanha

    August 23, 2014 at 8:46 pm

    Dear Justine:

    Nice Article, clear to the buttom,
    Congrats!!!

    Likes(2)Dislikes(0)
  17. Joshua oloo

    August 23, 2014 at 11:20 pm

    Thanks Mr.Yong for the Article.precise and to the point.Regards.

    Likes(2)Dislikes(0)
  18. Luciano K

    August 24, 2014 at 4:40 am

    Hi Mr. Jestine,
    Thanks for this wonderful article. waiting for more from you sir.
    Regards!

    Likes(2)Dislikes(0)
  19. tana

    August 24, 2014 at 10:33 pm

    Dear Stephen,

    that was a very interesting repair job.
    Thank you Jestine

    tana

    Likes(4)Dislikes(0)
  20. marwan

    August 25, 2014 at 1:31 am

    Panasonic good very good .

    Likes(2)Dislikes(0)
  21. Imraz

    August 25, 2014 at 6:01 am

    Hi Mr Jestine
    Another great article by a great author. Another learning experience for all of us
    Thanks

    Likes(2)Dislikes(0)
  22. Enkhbat

    August 25, 2014 at 9:39 am

    dear Mr Jestine Young
    Thank you for your sharing practice
    It was interesting.
    Best regards Enkhbat

    Likes(2)Dislikes(0)
  23. Taring K Arioka

    August 25, 2014 at 11:14 am

    Thank you for this nice article. It is very helpful to me

    Likes(2)Dislikes(0)
  24. Abdoulie Bah

    August 25, 2014 at 4:36 pm

    Excellent article Mr Jestine that really wonderful wish you well.

    Likes(2)Dislikes(0)
  25. shahid ahmada

    August 26, 2014 at 4:44 am

    excellent you make repairing looking so easy for us thanks

    Likes(2)Dislikes(0)
  26. Sam Montero

    August 26, 2014 at 8:55 am

    Hello Jestine
    A capacitor with this value would normally be a voltage droping for
    low voltage power supply which is regulated by a zener. This is done
    to economize the power supply circuit.
    Sam

    Likes(3)Dislikes(0)
  27. Denver Guzman

    August 26, 2014 at 3:49 pm

    very good tutorial sir, thanks for sharing

    Likes(1)Dislikes(0)
  28. Fernando Frias

    October 19, 2014 at 7:27 pm

    Thanks for the informative sharing for the repairing in electronics especially in capacitor.

    Likes(0)Dislikes(0)
  29. Sunita

    December 7, 2014 at 5:56 pm

    hi jestine,

    i have a cyclone remote control fan...apparently the company no longer exists in malaysia so i cant get parts.one night there was a burning smell and it completely stopped. one electrician says its the motherboard? but no point fixing...better to get a new one. what should i do?

    Likes(0)Dislikes(0)
    • admin

      December 8, 2014 at 9:27 pm

      HI Sunita,

      If you do not have experience in electronics repair and the electrician already confirmed the motherboard have burnt parts then get a new fan.

      Jestine

      Likes(0)Dislikes(0)
  30. Qamar

    May 2, 2015 at 2:17 pm

    Hi Jestine ,

    Nice to read your article provided, Today this morning my Panasonic ceiling fan suddenly stop working, some time work if i push or touch the fan and sometime not at all response. When i open the front top cover the circuit is same like your picture. After reading this article i guess i am also having the problem in that big blue capacitor . If suppose that big capacitor is faulty. Could you please tell me how much it cost that big capacitor. Tq

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 2, 2015 at 3:41 pm

      HI Qamar,

      It cost on about 1 USD.

      Jestine

      Likes(0)Dislikes(0)
  31. Qamar

    May 4, 2015 at 2:27 pm

    Thank you so much Jestine !!!

    Likes(1)Dislikes(0)
  32. lai

    May 20, 2015 at 12:03 pm

    Hi Jestine,
    I bought 3 KDK baby fans in Malaysia 3 years. After less than 1 year, 2 of them started having "tick tick" sound when on. I am sure it is not due to mechanical "rubbing" as the sound goes off immediately when the power is switched off. Suspect the problem lies with the electronics (PCB) which looks very similar to your Panasonic's PCB. Do u think the capacitors could cause the "tick tick" sound? If not, what do u think could be the cause?
    It appears many complaint about the capacitors, so is it a quality issue with the manufacturer of the capacitors or a wrong rating selection?
    Thank you.

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 20, 2015 at 4:38 pm

      HI Lai,

      I suggest that you check the caps first because the caps usually give the most problem.

      Jestine

      Likes(0)Dislikes(1)
  33. lai

    May 20, 2015 at 4:52 pm

    Hi Jestine,
    Thanks for the prompt response. Will try that.

    Likes(0)Dislikes(0)
  34. Reeko

    May 31, 2015 at 5:08 pm

    Hello Sir Jestine
    I have been using the Remote Control Panasonic Ceiling about 4 years not stop but recently the ceiling fan cannot control the speed. The remote control also don't work to control the speed. When I plug-in the power, the fan with slowly turn and not to maximum speed. I have open up the fan and clean up all the dust. I think its the capacitor is the problem.

    Can you kindly tell me the type and spec or equivalent of the capacitor so that I can replace it. Thank you in advance.

    Likes(0)Dislikes(0)
    • Jestine Yong

      June 3, 2015 at 3:31 pm

      Hi Reeko,

      Its a Metallized Polyester Film Capacitor. Try buy from electronic shops and they should keep them.

      Jestine

      Likes(0)Dislikes(0)
  35. eddy

    July 22, 2015 at 9:06 am

    hi Jestine, i have a KDK ceiling fan that not able to go to speed number three, the max it will go is number 2, is this the same problem with the capacitor? what about slow turning speed? also that capacitor? thanks.

    Likes(0)Dislikes(0)
    • Jestine Yong

      July 22, 2015 at 9:38 am

      Hi Eddy,

      Most probably yes, try check all the capacitors. Check also the remote control number 3 button.

      Jestine

      Likes(0)Dislikes(0)
  36. Vincent

    October 6, 2015 at 11:15 am

    Hi Jestine,

    Thanks for the infor.
    I noticed there is this white glue stick to side of the capacitor. How can I remove it ?

    Do I need to re-apply the glue after replacing the capacitor ?

    Likes(0)Dislikes(0)
    • Jestine Yong

      October 6, 2015 at 6:28 pm

      HI Vincent,

      You can just use some force with the help of test pen to gently lift it up. You do not need to re-apply the silicone. Just make sure the components are well soldered.

      Jestine

      Likes(0)Dislikes(0)
    • Robert Calk

      October 7, 2015 at 12:37 am

      Hi Vincent,
      I have found that the glue is easier to remove after you heat it up and make it softer.

      Likes(1)Dislikes(0)
  37. Joe Naden

    October 23, 2015 at 8:20 pm

    Thanks for sharing Jestine. When the fan doesn't run at it's usual speed most of the time it's the capacitor unless if the speed is continuously variable through triac, then it becomes little more different. Even for those people well versed with this type of work, sometimes they need to be reminded not to look for complicated solutions. Thanks again Jestine

    Likes(0)Dislikes(0)
    • Jestine Yong

      October 23, 2015 at 8:42 pm

      HI Joe,

      You are welcome.

      Jestine

      Likes(0)Dislikes(0)
  38. Rizal Abdullah

    February 16, 2016 at 3:17 pm

    Hi, this is Rizal. I have the same problem with my Panasonic MY143 model fan. It operates only on the 1st speed. Speed 2 and 3 no reaction.
    I am electronically challenged !! Can I have the contact of any reliable person to sort out this issue for me.

    Many thanks for your response.
    Rizal

    Likes(1)Dislikes(0)
  39. Ree

    April 12, 2016 at 8:14 am

    May I know where can I get the brown cap online? Tried farnell, RS but they don't have this.

    At this moment, my fan can only go to the speed 1 and 2 but not 3.

    Likes(0)Dislikes(0)
    • Jestine Yong

      April 12, 2016 at 11:08 am

      Hi Ree,

      Have you checked from your local electronics shop?

      Jestine

      Likes(0)Dislikes(0)
  40. Ree

    June 14, 2016 at 9:02 am

    Check some local store but none...Hondai, etc...

    Likes(0)Dislikes(0)
    • Jestine Yong

      June 14, 2016 at 11:16 am

      Hi Ree,

      In this case you may need to buy online. Try ebay or aliexpress to see if you can find the same type and value of cap or not.

      Jestine

      Likes(0)Dislikes(0)
  41. ree

    June 17, 2016 at 12:09 am

    How about the shipping charges? eBay looks expensive

    Likes(0)Dislikes(0)
    • Jestine Yong

      June 17, 2016 at 10:06 am

      Hi Ree,

      I'm not sure about the shipping charge-you need to check with the seller.

      Jestine

      Likes(0)Dislikes(0)
  42. JH

    October 10, 2016 at 9:44 am

    Hi Jestine,

    Can you advise on the part/model number for the IR receiver? Do you think it will be possible to shift the location with some soldering/wiring work?

    Thanks!

    Likes(0)Dislikes(0)
    • Jestine Yong

      October 12, 2016 at 8:14 pm

      HI Jh,

      Sorry I do not have the part number. Why want to shift the IR location?

      Jestine

      Likes(0)Dislikes(0)
      • JH

        October 12, 2016 at 8:55 pm

        i installed a led light below the fan, and its now blocking the IR sensor

        Likes(0)Dislikes(0)
        • Jestine Yong

          October 12, 2016 at 9:11 pm

          Ok noted. In this case if you can extend the IR sensor by using wires and secure it (not blocking the led light) then you can go ahead to do it.

          Jestine

          Likes(0)Dislikes(0)
  43. Joshua

    December 30, 2016 at 7:00 am

    Ho Mr Yong, I changed the capacitor. Now the speed 2 and 3 works. The only thing doesn't work now it is speed 1 and the off button. When I press speed 1 or the off button, it gives no response. Roughly which cap I should replace? Or other components?

    Likes(0)Dislikes(0)
    • Jestine Yong

      December 30, 2016 at 9:53 am

      Hi Joshua,

      Have you checked all the big cap capacitance?

      Jestine

      Likes(0)Dislikes(0)
  44. Mokhtar

    February 13, 2017 at 5:27 pm

    Hi Mr Yong,
    A bit off topic, sorry. We know that some fans got got 'off timer' ie we can set the fan to 'on' let say 1 hr then off automatically. May I know what that control the to 'on' for only 1 hr?

    Likes(0)Dislikes(0)
    • Jestine Yong

      February 14, 2017 at 10:00 pm

      Hi Mokthar,

      Sorry I don't own this fan. If you go to the website it says to gradually reduce the fan speed according to the time setting which is 1 hour, 3 hours and 6 hour.

      Jestine

      Likes(0)Dislikes(0)
  45. Adlan

    May 8, 2017 at 11:46 pm

    Hi sir...where is your location..im facing similiar problem...at first just wanna throw it but after read your posting...thinking of repair it rather than buying a new one..pls mail me ur ctc number and i will send the board to you for repair...tq sir

    Likes(0)Dislikes(0)
    • Jestine Yong

      May 9, 2017 at 7:42 am

      Hi Adlan,

      Sorry I no longer provide this kind of services because my company already moved into electronics training.

      Jestine

      Likes(0)Dislikes(0)

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