A dishwasher that appeared to have stopped halfway though its cycle in the night greeted me this morning, showing 1:37 remaining on the panel, completely unresponsive to front panel buttons. Breaker off and back on led to no display or response to button presses whatsoever.
This is LG model LDS5540BB. I opened the cover and found line voltage at the main PCB, so the separate noise filter inline between main PCB and mains power is fine. The 220uF cap circled in the attached photo was very clearly bad, not only bulging but actually open at the top. The 6a fuse near the line input was also blown - also circled in the photo. Note the photo is not mine, it's of a good board advertised online.
I've ordered another board but will be waiting until Thursday for it. I'm considering ordering and replacing both of the 220uF caps at the bottom of the photo along with the fuse just to see if I can get this control running again. My question is, is it worth bothering with? If the bad cap could explain the blown fuse, great, it might be worth fooling around with. If there is likely to be other components that are also bad, I don't have the skill or time to diagnose.
Could the fuse be blown because of just the bad cap? I can't test the bulging cap for continuity - I stupidly wound up destroying it getting it off of the board because of the potting compound.
This is LG model LDS5540BB. I opened the cover and found line voltage at the main PCB, so the separate noise filter inline between main PCB and mains power is fine. The 220uF cap circled in the attached photo was very clearly bad, not only bulging but actually open at the top. The 6a fuse near the line input was also blown - also circled in the photo. Note the photo is not mine, it's of a good board advertised online.
I've ordered another board but will be waiting until Thursday for it. I'm considering ordering and replacing both of the 220uF caps at the bottom of the photo along with the fuse just to see if I can get this control running again. My question is, is it worth bothering with? If the bad cap could explain the blown fuse, great, it might be worth fooling around with. If there is likely to be other components that are also bad, I don't have the skill or time to diagnose.
Could the fuse be blown because of just the bad cap? I can't test the bulging cap for continuity - I stupidly wound up destroying it getting it off of the board because of the potting compound.
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