This year, with the rapid development of technology, people's standard of living has improved considerably. Many people have purchased electromagnetic furnaces, which are emerging as heating tools with the advantages of heating speed, safe environment, etc., but any product will fail, and electromagnetic furnaces will be no exception. How can we solve this when the electromagnetic furnaces have a common failure? Today, it encyclopedia will share with you the common malfunctions and maintenance methods of the electromagnetic furnace。
This is reflected in the failure of electricity to react and the non-working of the whole machine. We unplugged the machine, and we found out that the insurance burned, and it exploded so badly that it was all black on the glass wall. Further examination will show that the igbt under that big radiator has also broken through, and sometimes even a whole stream bridge has been burned, but the whole bridge is much stronger than igbt and normally only igbt。
The test machine, the whole machine, was not working, the electromagnetic furnace was removed and the fuse was found to be intact. This is usually the case when the electric transformer chip of the electromagnetic furnace is burned, which generally generates 18v voltage, then becomes +5v voltage by 7805 for cpu work, without +5v, with cpu not working, of course, the whole machine is not working. In electromagnetic furnaces, such chips are generally used as viper12a, viper22a, thx203h etc. The power transformer chip is measured on the outer edge of the chip to see if there is a small device with collateral damage, and if so, replace it。
An electromagnetic furnace
Such failures require a clear understanding of the meaning of the code before purposeful maintenance. There's a lot of code down the electromagnetic furnace on the internet, and we can use it. Such malfunctions are typically electrically resistant transformations of high-probability bodies, which can be measured in one place and replaced by variables. At the same time, we need to check the single level of the intersensor, 300v/5uf capacitor, heat-sensitive electrical resistance and electromagnetic furnaces. As long as these locations are identified, such failures can generally be eliminated. The few may also have been caused by damage caused by lm339 and may be verified by proxy。
An electromagnetic furnace
These malfunctions are difficult to repair, temperature detection of electrical resistance, simultaneous oscillation circuits, igbt-driven, igbt c-high voltage protection circuits, current detection circuits, pwm-modified circuits, and cpu circuits may all be associated with such failure. Fixing such failures is a test of our patience。
These are the frequent failures of the electromagnetic furnaces and their solutions, summarized by the it encyclopaedia for you. In the course of the use of electromagnetic furnaces, we often experience such failures that we cannot use, and so that they can be repaired without prejudice to subsequent use, but microwave furnaces are sophisticated and difficult to maintain, and it encyclopedia suggests that you go to a professional store for maintenance and select, as much as possible, a well-known brand, so that the quality of the product is assured。
