How To Fix A Circuit Board That Got Wet

By | January 9, 2023



Given the complexity of circuit boards, it is not uncommon for them to suffer damage due to water exposure. Whether the exposure was from spilled liquid or a natural disaster, this can cause serious problems for the board. Fortunately, there are steps you can take to repair a wet circuit board.

First and foremost, safety should be a priority if attempting to fix a wet circuit board. The water may contain hazardous materials that could cause harm, so always use protective gear when handling it. Furthermore, electricity can be present on the board and could cause an electric shock, so make sure the power is off before working.

The next step is to assess the damage. Depending on how long the board was exposed to water, the damage can range from minor to catastrophic. In the worst cases, it may be necessary to completely replace the board altogether. If the damage is repairable, then begin by drying the board as best you can. This can be done using a combination of air blowers, towels, and absorbent materials.

Once the board has been dried, inspect it thoroughly looking for signs of corrosion. Identify any components that look corroded and mark them for replacement. You'll also want to test all the board’s components for continuity. If there is a defective component, most likely it will be indicated through the testing process.

Replacing the damaged components is usually the next step and can be done with a soldering iron. If you don’t have one, there are kits that you can purchase that come with all the necessary items. Make sure to install the new components in the same position as the old ones.

Once the board has been reassembled, power it up and test it. If everything is working properly, you should be able to get the board back up and running as if nothing happened. However, if there are still problems, you may need to repeat the entire process.

Repairing a wet circuit board can be a challenging process, but with some patience and the right tools, it can be achieved. Make sure to always use the proper safety precautions, inspect the board for damage, dry it, and replace any corroded or defective components. With a little effort, you can bring a wet circuit board back to life!


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