How to check Capacitors using Multimeter 

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Agreed...also agree with dude on the music either make it barely noticeable or none at all ...much appreciated tho

Agreed. Straight to the point, no language translation necessary 😊

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You are welcome friend. Many thanks for admiring my work. This video is specifically for testing capacitors simply and roughly using any kind of multimeter (ohms range).

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Stop fucking with me you asshole pos idiot

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Agreed. Watched several before this one and they all talked to me like I had an engineering degree or something.

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Was nt it just Jon, compared to all the other videos about capacitors, this one I learnt from so quick :)) 👍

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You have to remove at least one pin before checking, otherwise the resistances around that capacitor will add and readings will be wrong. Not only for capacitors, you have to remove the components like resistors/transistors/diodes before checking. But sometimes if you understand the component under test is not affected by other components in the circuit board, you can check it without removing.

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Thank you very much for admiring my work. But remember that this is a simple method for testing capacitors roughly. You need a multimeter with capacitor testing feature to confirm the uF value of the capacitor under test.

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Thank you. But this simple test is to make sure that the capacitor is working properly by using any ordinary multimeter. You have to use an advanced multimeter having capacitor testing facility to check uF value exactly.

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You need to remove at least one pin from the board (or both). This is valid for any component under test, otherwise the resistances from other components in the circuit board will affect for test results.

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Thank you. It is due to a difference in capacitance of those capacitors, even if the same value has printed. You can verify their capacitance using a multimeter that capable of measuring capacitor values. One reasons for this difference is the tolerance, say a capacitor with 10uF with a tolerance of +/-10%, then it can be 9uF or 11uF. Also its capacitance may decrease over the time according to the quality of the manufacturer.

If the capacitor testing feature is not available in the multimeter, it can be simply check the capacitors by using ohms range where the capability of the capacitor to charge when current flows through its leads is checked. If it uses high resistance range to check large uF capacitors, the time taken to reach open circuit will high.

You may use 200k range

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@@hobbyelectroniccircuits7391 have vtwin yamaha virago cdi box and checked all capasitors they were fine, but all with buzzer... When i checked them at correct charts and ohms, then i realized i have two faulty ones :) but with buzzer i had value and thougt they were fine.. so thanks again for chart great guide

You are welcome friend. Further you can check them with a multimeter that capable of testing capacitors to confirm their values.

@@hobbyelectroniccircuits7391 yeah i am not prof so now finding the fault with cheap multimeter was enough :) and the cdi works now :) they are damn expensive in Turkey now cause dolar is very high value now :( so i am happy today :)

Same here in Sri Lanka. Basic multimeter with capacitor testing feature is more than 2000 LKR or 10 USD. But cheap multimeters with limited features are available for 400 LKR or 2 USD.

Thank you. For a good capacitor, initially the reading is zero resistance and gradually increasing towards infinite resistance. (open circuit) If the reading just shows infinite resistance, the capacitor is open circuited. If the reading just shows zero resistance or some considerable ohms value, the capacitor is short circuited or leaked.

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You cannot verify its uF value is ok or lowered by using an ordinary multimeter using ohms range.

Thank you.. 20000 or 20k range can be used for 100 to 470uF capacitors. If you use that range for more than 470uF capacitors, it takes more time to discharge.

Yes, you are correct.

I'm using an ordinary multimeter to test capacitors by using ohms range simply.

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Capacitor is good without any leakage. But you may confirm its value around 1000uF using a multimeter with capacitor testing feature.

@@hobbyelectroniccircuits7391 I'm going to get one of those little component tester things the ones that have a clear case.

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Readings should be go until Open Line

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You need to remove at least one pin of the capacitor from the circuit board before checking.

You cannot test a capacitor (or any component) that installed in a circuit board, because resistance from other components will add to the component that going to test. Remove one or two pins before testing.

No, you can't. Remove atleast one pin before testing.

@@hobbyelectroniccircuits7391 thanks

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Thank you... Song, Artist & Year : Roots of Legend by Density & Time (2018)

You can use either 2000 ohms range or 20k range. 20k range will take more time to discharge the capacitor compared to 2000 ohms range.

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Use any from 200k or 2000k for checking 11 to 21uF capacitors. 20k or 200k for 69 to 99uF.

Thank you.. Use nearest ranges as the digital multimeter.

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Charging/Discharging

Thank you. For good capacitors, meter reading should start at zero and then moving slowly toward open circuit.

This is a simple way of checking capacitors with a cheap multimeter by understanding their leakage or open circuit conditions. You have to use a multimeter with capacitor testing feature to confirm the uF value within approved range.

I guess the capacitor may opened, or decrease of its uF value

@@hobbyelectroniccircuits7391 thank you for the reply i really appreciate is it possible that this washing machine capacitor can still make the motor work cos it's still working but the problem i can hear a noise inside my washing machine

It is good to confirm the uF value of the capacitor by using a multimeter that features with capacitor testing. If the value reduced, please replace it with new 10uF capacitor with mentioned voltage.

@@hobbyelectroniccircuits7391 thank you so much i will take your advice 🙏

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Thank you friend. You can guess the Wattage of resistors according to their sizes. 0.125W, 0.25W, 0.5W, 1W, 2W, 3W.....etc. Normally Wattage value is printed in resistors more than 3W, such as in cement resistors.

2000k range

Thanks to you I know the capacitor ​to my 20" fan is working! 😊 That's the good news. Bad news, I don't know what that "pop" was I heard when the fan died! 😢 Any ideas?

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Yes you are correct. The one that did not go to ol is bad.

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Use 2000 ohms or less range.

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@@hobbyelectroniccircuits7391 you saw the shadow of the prongs

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No, you can't. Resistances from other components will add to the capacitor pins and final resistance on multimeter will not open circuit. You have to take out at least one pin from the board.

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223 = 0.022uF means a low capacitance value. You need to use a multimeter that having capacitor testing feature to check them. Method in the video is an simple and easy method which not suitable for low valued ceramic and polyester film capacitors.

@@hobbyelectroniccircuits7391 Thanks for the feedback, I don't think my multimeter can test small capacitance unfortunately.

You are welcome friend. Those small valued capacitors may burn rarely. Sometimes you can find faulty ones by cracks on their body or bulging. Use box type capacitors for high sensitive applications.

@@hobbyelectroniccircuits7391 It's just for some cheap hot rail pickups on a cheap guitar. Just a fun project, looking to series/ parallel wiring and maybe split the coils with some push pull pots.

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To see the discharging of different uF capacitors clearly.

You are welcome friend. It is a method to test capacitors simply by any cheap multimeter that are not facilitated with capacitor testing feature.

What are the uF values of those capacitors...?

@@hobbyelectroniccircuits7391 I first tried on spare caps, old ones that I have.... But I tried on power amps board that's after the transformer that is with transistors with coolers and resistor's....

@@hobbyelectroniccircuits7391 If a cap. Don't have any power it will show number's?? Or I have to power the circuit? It's old audio power amp

Are they smoothing capacitors of value around 4700uF...?

@@hobbyelectroniccircuits7391 yeah 4700μF and 63V , there are 2 at the board after transformer

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You mean the background music?

@@hobbyelectroniccircuits7391 yup

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Density & Time | Roots of Legend

Less than 10000uF is ok

Use 200k or 2000k range.

This video explains a simple way of testing capacitors. For high voltage charged capacitors, you have to discharge it through a wire without touching pins, like crt tv capacitor discharging using a multimeter lead. Also you can use a k ohms resistor to discharge high voltage capacitor slowly without sparking.

@@hobbyelectroniccircuits7391 Nice, thank you!

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@@hobbyelectroniccircuits7391 Capacitors need to work in a specific MFD range, and if they register below that range they should never be considered "good". 2:10

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You end up with Covid.

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It depends upon the value because the ohms range is not much sensitive for pF capacitors.

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Meter reading should start from a certain value and reach open circuit for good capacitors.

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