Using Fluke Meter to Test Air Compressor Motor Capacitors & opening up my SIP One Way Check valve. ⚡

In this video I start to investigate why my SIP air compressor keeps tripping the overload breaker. I test both the start and run capacitors with a Fluke 77 IV multimeter which has capacitance testing. ⬇️💥⬇️ Links Below & Donations ⬇️💥⬇️ These turn out to be ok so it's off with the drive belt and onto the one way check valve to see if that's working.

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⬇️Timecodes
00:00 Introduction
00:57 Opening up the Capacitor Box
02:24 Why do motors use capacitors?
04:08 Using a Fluke 77 to test the capacitors
04:52 Testing the Start capacitor
07:37 Testing the Run capacitor
09:06 A word of warning on replacing capacitors
10:23 Testing motor with drive belt removed
11:43 Creating an air leak
12:35 Check valve leaking continuously
13:41 Opening up the check valve
14:52 Photographs of parts
15:22 Still left puzzled !!!
17:14 Compressor seems to be working
17:52 Credits

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Disclaimer:
This video only contains tips and my personal methods that could be helpful when carrying out home car repairs or replacing parts. Coats & Gaiters is not liable for any harm, injury or property damage incurred while carrying out such repairs or replacements, that are a result of incorrect use or misinterpretation of the provided information. This video is for informational purposes only and does not guarantee achievement of a specific result. The user is personally liable for incorrect use of repair equipment, tools or car parts, in particular, when this use poses the risk of injury. Coats & Gaiters strongly advises taking personal care and adhering to all safety rules when doing any repair or replacement. The use on inferior or low quality vehicle parts does not guarantee the proper level of road safety.

#aircompressor #sip #compressor

[CoatsandGaiters]

If you click "SHOW MORE" in the description above your be able to see Links to the Tools 🔧🔨🔧 I use. Also Clickable Chapters📋 📙 throughout the video and other Links 🎬 that may be of interest. I've had a few viewers request where they can buy the tools they see in some of my videos but it's not very clear that the "SHOW MORE" tab has a lot of information in that may be of interest. Admittedly the amazon links are associated with me and I would earn a small commission which helps towards keeping the channel funded.

[shbjo]

Had the same symptoms on an air compressor. Followed your steps and found a small piece of rusty rock or whatever in the one way valve. The tank had never been water drained and there was A LOT of water in the tank. After cleaning the valve and putting it back together it works perfect. Thanks for sharing.

[blueeyesvideos]

I want to thank you very much for this video. Before going down the route of buying expensive capacitors I thought I would look on YouTube for a video with the same symptoms and I came upon your video. Let me tell you I had the same symptoms but only from pressure to re-pressure. I did the exactly same thing you did but sprayed it with a bit of WD-40 and it works like a charm. Thanks again Claudio from Canada

[MrRevell]

Perfect step by step guide on trouble shooting an air compressor, thanks mate!

[BNBFORYOU]

Really no one was able to find the problem but you a thousand thanks

[patrickjmorgan]

Another informative video Mark! Ive a smaller Clarke compressor that ive had since about 1993 when I had a car to spray aftr re-build. It has been a faithful companion with only minor maintenace however, one year the overload that cuts the motor off when pressure is reached failed to trip till about 15% over- on occasion it tripped the dump-valve. I replaced the pressure-switch as they warned us apprentices of the dangers compressed air can cause if not respected. I do remember some of my theory classes back in the day!

[Jenito]

This is very compreensive diagnosis of air compressor i ever seen on youtube.thanks a lot

[truckstomotorcycleswithtom]

Fantastic video clearly explaining the steps and your thought processes. Well Done!

[gerwit]

This is the best youtube video ever made

[newagetemplar]

Life saver, have the same compressor, just a bit older and 1 capacitor . Ours used to stall on re starting. The capacitor had blown (40uf off memory) replaced that and it lasted about a week . I didn’t check the valve block / non return valve as the compressor turned over easily by hand with no resistance.
My next port of call and hopefully alls well . 👍😇😁

[putinontheblitz]

This is a great learning tool. We'll done. Took my portable air compressor out to blow out the waterlines on my travel trailer yesterday. Turn it on and breaker tripped. Now I know where to look.

[ronlitz]

A treat to watch, thanks for taking the time.

[rohawaha]

Very helpful troubleshooting video, I went to a garage sale and bought a very nice 30 gallon compressor in like new condition. I tested it before buying it and it ran and shut off properly . It is a vertical or upright tank unit. Of course I laid it on it's back in my work van to transport home to my shop and it got bumped around . Upon starting it in my work shop, it would run until it reached 95 PSI and trip the breaker .
Now I know where to look after testing the capacitors . P.S. I am a Marine Electrician, years ago I worked in an electrical shop and a careless young man had got a terrible shock from a capacitor
smaller than the ones you were handling . I think your fear and caution was warranted. Thank You for addressing this International problem " I am in Florida USA " Have you ever considered working for the United Nations ? They could use your problem solving skills !

[alsemi-back-up]

Great Video
Makes Me think about more than Capacitors Gone!
Thanks for The Upload
Thumbs Up!

[seanfox]

That's exactly the problem I'm having with my compressor and it's the same compressor as that. Thanks

[NuzariWoodworking]

Waw, you saved me from buying new capacitor 💯

[RonEvers]

So pull the belt before diagnosing the capacitors. Got it, thanks.

[jparson]

My guess was the centrifugal switch was not working properly. Thanks for the video.

[davidcoleman]

Very good video, nicely explained aswell. 👍

[beny]

Just fyi, yes UK voltage is 220-240VAC, however this is actually RMS voltage, peak voltage is actually sqrt(2)*Vrms which is around 311-339V. This would be one of the main reasons why you couldn't use the 250VAC capacitor. It would essentially blow up as it overvoltages.