E0 Error Solved In ADELI Induction Cooker Model AL-2000A1
This Induction Cooker (Hereinafter referred to by short form ‘IC’ in this article) had visited me in April 2021 and made a revisit in July 2024 (after more than three years) with the complaint that it showed E0 error. Those of you, who are interested in finding how I solved E2 error in this IC, can please see the same here :
https://jestineyong.com/e2-error-solved-in-adeli-induction-cooker-model-no-al2000-a1/
Let us look at the inside condition of this IC this time:
My first job without any doubt was to clean up the inside thoroughly after taking out the boards and fan, which I did happily.
Since E Zero error is a very common indication and there could be many reasons, major of which are (1) Bad high voltage capacitors (Black) (2) Temperature Sensor defective (3) Low feedback voltage to IC from three places through high watt resistors; one series from B+ of Bridge Rectifier, one after the coil and one from the input for primary switching (4) Gate drive is not ok. Some tracks or caps in the line to be checked. (5) IGBT Defective Etc. Etc.
The black capacitors were removed and checked and found to be ok. The temperature sensor in the centre of the coil was checked for its ohms in Digital Multimeter and a hot soldering iron was kept on top it upon which the resistance dropped indicating that it was functioning well. The high watt resistors of 300K and 330K were checked and found to be out of range. So, these were replaced. The 8050 & 8550 gate drive transistors were replaced though these were found ok on cold tests, as these might malfunction on load. The fan was found damaged and I replaced that too. After all these rectifications of possible faults, I reassembled the boards and applied power after keeping the control panel outside.
But it still showed the E0 error! As the gate drive was missing, I suspected the IGBT. So once again dismantled the board and replaced the IGBT too. This IGBT did not show any short on checking, so probably it was open! If it was short, fuse would go first or MCB of the mains AC would trip. Reassembled the boards and applied power to see gladly that the error had gone and the water in the vessel got boiled. Fixing only two screws at the bottom, took it to my kitchen for trials for two days and found it to be working very well. Then fixed all screws and packed the defective components and moved it out for delivery to customer.
Mission accomplished with lessons learnt and satisfaction gained!
THIS IS MY 500TH ARTICLE AND I THANK JESTINE YONG AND ALL READERS FOR MAKING IT POSSIBLE
This article was prepared for you by Parasuraman Subramanian from India. He is 74 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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You may check on his previous article on Replaced IFT With Imported In PHILIPS Valve (TUBE) Radio Model MAJOR
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Waleed Rishmawi
October 12, 2024 at 5:17 pm
congratulation on the 500th article shared on this page and I thank you for it. I have learned a lot from you. keep up the good work and have a blessed day
Parasuraman S
October 12, 2024 at 5:52 pm
Many thanks, dear friend!
Albert van Bemmelen
October 12, 2024 at 5:20 pm
Congratulations dear Parasuraman on reaching another exemplary anniversary!
And thanks for another well presented Induction Cooker article!
Parasuraman S
October 12, 2024 at 5:53 pm
Many thanks, dear Albert!
Yogesh Panchal
October 12, 2024 at 8:37 pm
Congratulations!your effort for us,
In these type of IC IGBT is main culprit.
Parasuraman S
October 12, 2024 at 10:49 pm
Yes, Yogesh! You are right! Thanks, Yogesh Bai
Erik Blankers
October 12, 2024 at 11:12 pm
dear sir, what is an IGBT? Function?
Parasuraman S
October 13, 2024 at 1:20 pm
Insulated Gate Bi-polar transistor! Switching in high voltage to generate pulses. Kindly search in google for more details. Thanks!
Mark J
October 13, 2024 at 3:34 am
Parasuraman your becoming an expert at fixing induction cookers. Well done.
Parasuraman S
October 13, 2024 at 1:20 pm
Many thanks, dear Mark!
Imoudu.O
October 13, 2024 at 5:18 am
Contrat!! hurray.
Parasuraman S
October 13, 2024 at 1:21 pm
Many thanks, dear!
Imoudu.O
October 13, 2024 at 2:10 pm
I need to replace 400th article with ur 500th article, no provision for downloading this time around?
Parasuraman S
October 13, 2024 at 7:22 pm
Yes, it is already prepared and on its way for publications by Jestine Yong! He is expected to do it as soon as he is free enough!