Ignoring Techie Friends’ Advice Caused Return Of Butterfly Induction Cooker Model Rhino
This induction cooker had visited me in December, 2022. Kindly read history in the following link:
It was brought back by my son during his next visit (March, 2023) stating that it failed once again tripping the MCB. Any tripping of MCB is a clear indication of the IGBT shorting. According to him, the cooker worked only for a week. I opened the set and found IGBT blown, though there was no problem with any other components in the power supply area.
My techie friends had cautioned me that giving an Induction Cooker back after replacing only the IGBT without replacing a few related components, though found ok, would bring it back soon and this is exactly what happened! I saw one resistor with change of color due to heat. So, this time, I did replace the following components:
1) IGBT 2) 18.5V Zener 3) 78L05 regulator IC 4) 8050/8550 transistors 5) All electrolytic capacitors 6) All push to on switches 7) IN4148 diodes 8) The strained resistor.
The high watt resistors were found ok and the final voltage of 2.7V that goes to the IC was also ok. Hence I left it. But my techie friends do advice to replace these too. I used FGA25S instead of N1600, as from my experience I have found that the former is very sturdy and will last longer. Then the cooker was found working very well.
I used it in our kitchen for almost a week until my son took it to his home at Bangalore. He reported that the cooker was working very well.
The reason why I ignored my techie friends’ instruction was to counter check their caution and see what happens. Secondly, there was no time to carry out these works last time he was in a hurry to return to Bangalore and I did all the service work overnight. Anyhow, my techie friends proved right and I learnt a lesson! (Getting a device back this way is safer within the family than from an outside customer) (I have ignored replacement of high watt resistors; let us see what happens! [LOL]).
Mission accomplished with experienced satisfaction getting collected as usual!
This article was prepared for you by Parasuraman Subramanian from India. He is 72 years old and has more than 30 years’ experience in handling antique equipment like Valve Radio, Amps, Reel Tape Recorders and currently studying latest tech-classes conducted by Kerala State Electronics Technicians’ Association. He has done graduation in BBA degree, private diploma in Radio Engineering and retired as MD of a USA company. Presently working as Consultant to Hospital and other institutions.
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Anwar Yunas Shiekh
July 15, 2023 at 8:20 am
We live, we learn.
Parasuraman S
July 15, 2023 at 1:17 pm
Yes, true! Many thanks for your comments!
Mark
July 15, 2023 at 10:10 am
Hey Parasuraman,
I'm glad you shared your experience. I think we have all done that in the best interests of our customer.
My very first article on Jestine's site was of a Pioneer amplifier that I only replaced one faulty transistor and fuse due to one channel not working.
In the comments, many suggested that I should have replaced both transistors for both channels, even though it was working perfectly.
It did not fail, but if I did it again, I would have replaced both as many of you guys suggested.
That is why I like being part of this group. There are so many talented experts that I can learn from and hopefully in some small way, I can offer some experience that may be of use to others.
Thanks again for the article.
Parasuraman S
July 15, 2023 at 1:18 pm
Your contributions are very valuable and I have found them very, very useful and educative. Many thanks for your comments and sharing the experience!
Albert van Bemmelen
July 15, 2023 at 12:58 pm
Another well presented article with good advice dear Parasuraman! I never had to fix any induction cooker yet but with your given instructions it can't go wrong!
Like Mark said it is good to have a lot of techie friends. Like here on Jestine's world wide webpages!
Parasuraman S
July 15, 2023 at 3:46 pm
Many thanks for your encouraging expert comments!
Yogesh Panchal
July 15, 2023 at 5:13 pm
Sir,
you have many Techie GEMS to brighten the Path.
Good Attempt!
Parasuraman S
July 15, 2023 at 9:09 pm
Many thanks!
Imoudu.O
July 16, 2023 at 2:48 am
Thanks for sharing your experience with us, hoping to handle one some day for repairs.
Parasuraman S
July 16, 2023 at 10:36 am
Many thanks!
Victor Almendarez
July 16, 2023 at 7:08 pm
Is a wonderful to learn , from the experience people
Thank you
Parasuraman S
July 17, 2023 at 9:09 am
Many thanks!
Henrique J. G. Ulbrich
July 16, 2023 at 11:48 pm
Very well done, Parasuraman. Thanks for sharing. Induction cookers are not common here in Brazil, but anyway with this kind of information, I begin to be prepared to service them due to reports like this one. Technical culture, of course.
You say it correctly: what was tripped was the MCB, not de GFCI, as some techs wrongly say.
Parasuraman S
July 17, 2023 at 9:10 am
Many thanks for your comments, details and support!
Waleed Rishmawi
July 17, 2023 at 3:07 pm
that is funny when you come to think about it. You acted like a customer when an advice was giving to you. LOL. thanks for sharing my friend. have a blessed day
Parasuraman S
July 17, 2023 at 11:11 pm
Ha!Ha! Many thanks, dear friend!