Capacitor terminals

[Lance0070]

Can any one tell me why there’s 4 prongs on one terminal and 2 on the other?

 

[Bluejets]

They are simply looping terminals for additional wiring. If you don't need them then forget about them.

 

[Lance0070]

So how would I test it with this multimeter

 

[(*steve*)]

Well, you could try the capacitance range, but there are many other parameters that your multimeter can't test.

Is there a reason you want to test it? Depending on that reason, your multimeter may only give inconclusive results.

 

[Lance0070]

Well, you could try the capacitance range, but there are many other parameters that your multimeter can't test.

Is there a reason you want to test it? Depending on that reason, your multimeter may only give inconclusive results.

I just want to know if it’s good or bad

 

[Lance0070]

Which is the capacitor range symbol?

 

[(*steve*)]

Which is the capacitor range symbol?

It's the one with the capacitor symbol. It's between Ω and Hz.

I just want to know if it’s good or bad

Well... The capacitance range may tell you the capacitance (as long as your meter can read up to the capacitance of this capacitor).

It won't tell you if it has high leakage or high ESR.

Do you have any reason to think it's faulty?

 

[Externet]

I just want to know if it’s good or bad

Apply 12V or near to that, any polarity to the terminals for a couple of seconds.
Measure voltage at the terminals with your multimeter after say 10 minutes. If healthy, there will be a voltage reading. The closer to 12V, the better. If no voltage, it is bad.

 

[Lance0070]

It's the one with the capacitor symbol. It's between Ω and Hz.



Well... The capacitance range may tell you the capacitance (as long as your meter can read up to the capacitance of this capacitor).

It won't tell you if it has high leakage or high ESR.

Do you have any reason to think it's faulty?

It had like a oily film on it?

 

[hevans1944]

It had like a oily film on it?

The picture you uploaded shows what appears to be a 6 μF, 370/400 V AC, non-polarized electrolytic capacitor, These are typically used in AC split-phase motor applications. An oily substance present on the outside of the aluminum can is indicative of leakage of electrolyte from the capacitor. Best to pitch it and replace with a new one.

Avoid purchasing "new old-stock" or NOS parts from the Internet to replace this capacitor. This type of capacitor will "go bad" just sitting on a shelf, in its original package, after a few dozen years. Even with a "date code" there is no way to predict how long, or even IF, NOS electrolytic capacitors will work. Caveat emptor!

 

[Lance0070]

The picture you uploaded shows what appears to be a 6 μF, 370/400 V AC, non-polarized electrolytic capacitor, These are typically used in AC split-phase motor applications. An oily substance present on the outside of the aluminum can is indicative of leakage of electrolyte from the capacitor. Best to pitch it and replace with a new one.

Avoid purchasing "new old-stock" or NOS parts from the Internet to replace this capacitor. This type of capacitor will "go bad" just sitting on a shelf, in its original package, after a few dozen years. Even with a "date code" there is no way to predict how long, or even IF, NOS electrolytic capacitors will work. Caveat emptor!

Sure is a lg split a/c unit, I’ll buy new from a store in town today thanks all for your help