E2 Error Solved In ADELI Induction Cooker MODEL NO.AL2000-A1
This Induction Cooker was brought to me by a regular customer with the complaint that it was not used for a very long time, and now when they took it up, the on/off switch was malfunctioning. When I opened it, I was shocked to see a lot of cobwebs with living spiders, dirt and filth all around.
After dismantling and thorough cleaning using blower and brush, I checked the press to on switches on the panel and found most of them defective. As I found that the 10uF/400 was bulgy, I replaced all the electrolytic capacitors on both the boards, along with the push to on switches. Did a thorough dry solder patch up on both the boards.
Connected everything externally and applied power to see how it was working. It started with a beep but E2 error started flashing. In some such cookers, E2 means temperature sensor error. So, I first checked whether the Sensors were ok. I checked the resistance and found it to be 75K Ohms and when touched with a soldering iron, it was dropping indicating that it was not the fault. In the checking process, the leg of one sensor broke and I had to use another one in its place. Then I checked the voltages on the board. The 18V on the Zener diode was dropping to 7.30 and varying also. So replaced the Zener diode. Switched on. It worked for sometime, but again E2 error was flashing. Then I checked the voltage of 78L05 IC and found it to be dropping. So, replaced that also. Even then the E2 error was not solved. As the Main capacitor was bulgy, the next suspicion was on the Viper 12A IC. So I removed it and placed a socket and inserted a new one.
In order to obviate another failure, I also replaced all the 8050/8550 transistors on the board. When I applied power, everything was perfect. The 18V and 5V were ok. So, I placed a vessel on the top, and pressed the on switch. It worked very well. After switching it off and allowing it to cool down, assembled the boards back.
Then subjected the cooker for thorough testing several times for use in the kitchen. Found it to be working very well. Called the customer to come and pick it up. Mission accomplished and satisfaction got added! Here is the picture of components replaced.
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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24 Comments
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Waleed Rishmawi
April 22, 2021 at 2:49 pm
thanks for sharing your expertise on this item. I never opened or worked on one before. have a blessed day my friend
Parasuraman S
April 22, 2021 at 9:53 pm
Many thanks for your comments!
Albert van Bemmelen
April 22, 2021 at 2:59 pm
I never fixed an induction cooker but recently did order a set of those push buttons in different sizes and also a lot of transistors too. Those buttons always come in handy since they are also used in IR remote controllers and so on. I guess that in your country kitchens they also use multiphase AC powerlines to distribute power to these induction cookers like is normal in my country? Maybe you better use an hairblower instead of a solder iron next time to prevent destroying the sensor?
Parasuraman S
April 22, 2021 at 9:56 pm
Yes, there is power distribution. Your suggestion to use a hair blower is welcome! Many thanks for your comments!
A van Bemmelen
April 23, 2021 at 2:07 am
That is if the hair blower doesn't induce another defect in the induction cooker like you experienced some while ago after you placed two induction cookers on top of each other! About the multiphase AC 230V powerline I asked if those Indian cookers are single phase operated units. Or do they also require at least 2 thicker phase power lines to prevent massive overload on one phase of the powergrid?
Parasuraman S
April 24, 2021 at 2:37 pm
Almost all devices are single phase. I have seen only The number of three phase users (like me) are lesser than those who use single phase. You always excel in your keen observation, memory and in depth study of articles. I can say that you are among a very few and am lucky to know you through this forum!
Arunkant Pandit
April 22, 2021 at 3:03 pm
Hats off to you sir for your zeal and complete the mission with great dedication at this age.
Regards,
Parasuraman S
April 22, 2021 at 9:56 pm
Many thanks for your comments!
Paul
April 22, 2021 at 3:58 pm
Where I can find schematics for this (and other) induction cooker?
Thanks,
Paul
A van Bemmelen
April 22, 2021 at 4:39 pm
Maybe here Paul or at Elektrotanya.
Parasuraman S
April 22, 2021 at 9:57 pm
Well, I have searched in google and got some! Many thanks for your comments!
Melgg
April 22, 2021 at 4:39 pm
definitely nothing can resist you.This is a better than factory job.
Thanks.
Parasuraman S
April 22, 2021 at 9:58 pm
Many thanks for your encouraging comments!
Lynn Blakely
April 23, 2021 at 12:12 am
Parasuraman S: Another complete repair, that makes your satisfaction bag get to be very large. Excellent explanation of all the steps taken to do the repair.
Parasuraman S
April 24, 2021 at 2:32 pm
Many thanks for your comments!
babums
April 23, 2021 at 12:24 am
Excellent job.Thanks for sharing.
Parasuraman S
April 24, 2021 at 2:31 pm
Many thanks for your comments!
Peter van Beveren
April 23, 2021 at 1:05 am
Good job, very capable persistence to solve multiple issues.
Take care
Parasuraman S
April 24, 2021 at 2:31 pm
Many thanks for your comments!
Patrick Ribbsaeter
April 23, 2021 at 1:57 pm
very nice.. thank you for sharing. learn from you every time..
Yogesh Panchal
April 23, 2021 at 10:25 pm
Excellent! job Sir.
Parasuraman S
April 24, 2021 at 2:30 pm
Many thanks for your comments!
Parasuraman S
April 24, 2021 at 2:31 pm
Many thanks for your comments!
Humberto
April 30, 2021 at 12:04 am
Excellent repair.