Wagan Tech AC Inverter 1500 Watts Repaired
The complaint of the Power Inverter was that there was no output by the customer. After I received the Inverter I applied a 12Volt Dc to the inverter to see what was going on with the equipment. I notice that the fan was coming on but the output green light was off. I proceeded to take apart the inverter for inspection and the first thing I did was to inspect the board for any sign of blown components and I notice that on the output there was breaks on the trace pad so Irepaired the trace with a piece of wire.
I powered On the equipment hoping that this would solve the problem but it did not, so I began some detective work.
First I check the four input fuses and they tested good, I then remembered that the fans were coming on so the problem has to be on the output side and since there were broken traces I began to check components along that line and guess what I found three N channel Mosfet Shorted (IRF640N).
I replaced those Mosfet and check all the rest, all the rest check out fine. I did a final check on the board to see if I had miss anything. I then applied power to the inverter and Guess what? It came back to life.
I tested it for about ½ hour to see if any component was getting hot and it worked fine.
This article was prepared for you by Andre Gopee from Calitech Limited Trinidad West Indies.
Please give a support by clicking on the social buttons below. Your feedback on the post is welcome. Please leave it in the comments.
By the way if you have any good repair article that you want me to publish in this blog please do contact me HERE.