How to Test an HVAC Capacitor

 Okay, today we're going to do a little faster testing. This capacitor is 45 5 microfarads. Okay, so we're going to test it in Microfarads, which is on your, it's MFD on your meter. And so what you're going to do is you're going to take that meter, you're going to check it between the common and the herm first.

So you're gonna go common and the herm first, and you're gonna get a reading like this one says.

44 60, so we know that it's good still. So then you're going to take that same common between the the fan, which is five, and you're gonna look and you'll see it's 5.3. So the other one is a little bit low. It's not all the way out. 44.6 is not bad, but it's not, it's not perfectly brand new. As you can see, this one is not a perfectly brand new one.

It does have some rust on it, and it has had a little bed drain. And if you want to do that, what you'll do is you'll take the, on this one particular, it says 5%, so you'll go 45 times 5% and whatever that number is, you'll subtract it. From your, from your total. And if it's lower than that, then it is now out of tolerance.

So you gotta make sure that your capacitors are within tolerance and they're working correctly so they're not hurting any of your motors, um, and that your motors are staying completely energized correctly. Alright guys, that's a little bit of about capacity. You guys have a great day.