Technology

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12 years ago air-conditioning was manual and without electronic circuits
So it's repairing was easy

Split air-conditioner control circuit board 


Six years ago the air conditioner was an automatic and remote controller and its repair was divided into two technicians such as an AC mechanic and an electronics worker, but many were learning about air conditioner control circuits and many were learning technicians.

But now for a few years, every company has been making inverter technology-based air conditioners and fridges.


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