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What is Capasitor Bulging

How can I tell if a capacitor is bulging?

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Tries to come on , but just humms

The hum is the compressor running but the condencer fan may be bad which removes the heat from the refrigerant check the fan or see if the capacitor is bulging if it is bulging the capacitor is bad

May 30, 2015 | Heating & Cooling

1 Answer


those values are printed on the side of the capacitors. You can tell which ones need replaced by their bulging tops.

Mar 03, 2014 | Samsung LN-S4051D 40 in. LCD Television

1 Answer

Hp w1907v monitor switches off after being switched on

It sounds like defective capacitors in the power supply/inverter.
Unless you are experienced in electronics be careful repairing.
Check for bulging electrolytic capacitors, bulging capacitors indicates they are defective. But a bad capacitor doesn't always bulge to indicte it has failed. Replace all cheap capxon capacitors, with low ESR rated capacitors from Digi-Key, Mouser, Allied electronics or Newak electronics.

Jan 31, 2012 | ViewSonic Computers & Internet

1 Answer

Full picture 2 seconds and then black when turned on

HiThe problem is faulty power supply, because of leak capacitor that's why the output voltage is cut off. The leak capacitor can identify through visual checking, the leak capacitor have bulging tops.Just remove the cover and find the power supply located at the upper right and you can see the bulging tops capacitor.Replace with the same value of capacitor.

Oct 04, 2011 | Sanyo 42 in. LCD TV

1 Answer


The problem is in the logic board of the LCD television at the vertical section.There's a leak capacitor or bulging top or faulty vertical driver ic.Replace all bulging tops capacitor at the vertical section at the logic board with new capacitor with the same value.Thanks..

Sep 04, 2011 | Televison & Video

1 Answer

I have an older desktop Dell computer and it turns on for a sec thenthe screen goes black you can still se it faintly. I was told it might be a capasitor but I opened it and checked the inverter and see no...

How did you check the inverter?
If you get a "very-dark" image, then the most-likely cause is a non-functioning inverter.
Buy a replacement (on eBay????) and install it.

Oct 04, 2010 | Dell UltraSharp 1704FPT 17" Flat Panel LCD...

1 Answer


Bulged capacitors are blown, that is the reason why the motherboard do not start.

Sometimes replacing capacitor may fix the problem, but due to the inexpensiveness of motheboard, and to the chance that more component may had been damaged by the fault, when this happen you usually replace the motherboard, rather then repairing at component level.

Aug 09, 2009 | EliteGroup PM800M2 Motherboard

1 Answer

I have a samsung pdp42 built in 2002 it seems to overheat? and tuen off on its own. It may work for three hours or as little as 15 minutes. several of the capacitors have plastic ends that are bulging but...

Yes, I can tell you that when the capacitors start bulging the you will need to replace the device. This is a sign that the capacitors are starting to fail. Now if you can put in a fan somewhere that will kept the heat down then you might be able to use it a little longer. You have got to get the heat away from the mother board.

Jan 08, 2009 | Televison & Video

3 Answers

Magnavox 37" flat screen model no.37mf23id/37

Yes, he means 2200 microfarret (called uf from here on out). Another important concern when buying a replacement is the voltage. You need to get something that is at least 25v. I recommend a 35v or better. Another notable point is that this may not always fix the problem. As with mine, there was also a 1200uf (microfarret) 35v capacitor that was blown. You can tell this because they bulge at the top. I have both of these caps (2200uf 35v and 1200uf 35v) on order and they will be here tomorrow. If I do not post back here then they fixed the issue for me. I suspect that this will resolve the problem. Look for bulges on top of the caps. This is an indication that they are blown. Most all of you experiancing these symptoms will see the 2200uf cap bulging but you may also see others bulging too. If you do then you need to replace those too. No electrolitic capacitor should be bulging at the top so if its bulging its bad, and if its bad then your tv will definitely not work. Have fun.

Jul 18, 2008 | Televison & Video

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