[MikeLocke]

Hello. Something does not look right with this run capacitor. I am going to replace it. This 60 gal air unit has been poorly maintained by me over the last 10 years. I will also be changing the oil for the first time and filter. Do you think there is a reason this went
bad...maybe the pump is bad as well?

 

[MikeLocke]

Thanks for the reply and ideas. I may research the ohm reading and check that out. I might see what happens when I just put that new cap on there, it is a $15 risk. Thing is, this motor was still running but I guess it wasn't running too good. Not sure how long that was going on.

 

[MikeLocke]

@motormonkey I did replace that capacitor. Now I think I have a bad pump. Then I thought maybe a bad motor. Now I don't know. The pump spins fine when I wheel it with my hand. The motor seems to run fine when I take the belt off but there is no load of course. When plugged up, it really struggles to get going (see video). Once it does get going, seems to build pressure. I don't want to throw too much $ at this, like buy a new motor and a new pump. I would rather put that money into a new better unit. Let me know if you have any clues please. Never mind, couldn't get the video to attach. It just shows it struggling to start to move then gets going.

 

[MikeLocke]

Thanks Stephen. I appreciate the help and your time explaining things. You have some good understanding of this, and I do not. Rather, I know a little about everything but not all about anything. It's the original motor, yes. I will go out there later and check those things mentioned.

 

[MikeLocke]

I told my boys to either pay attention to what I'm doing and learn how to fix things...or make a lot of money so you can pay someone else to do your man work. So far, they haven't done either one and didn't listen to a thing I said. Back to the issue...about 9.5 -10A on each side with inductive. Comes to maybe 3 or so if I am close. Matches up. I found a motor that looks like it should work perfect. I'll give that as try! I think I screwed the motor up years ago when I did some very improper wiring just to get it up temporarily...involving a couple regular extension cords running to a couple different 15A circuits and maybe a generator. I just remembered that. I remember it smoking some at the time periodically.

 

[MikeLocke]

Thanks. Well I may have checked the amps incorrectly. I just used an inductive meter and clamped on to the first hot lead (~120) and then the second 120. Each showed about 10A.

 

[MikeLocke]

Thanks for your help. All is working now. I purchased a new motor and installed. Hooked it all up and the pump was struggling really hard. Bought a new pump. Then noticed the belt was dry rotted...ordered that next. Then, I just decided to replace the switch so I could adjust my cut in PSI better. Now it all works. Around $400+ later. I guess I could have bought a new one, but this is half the cost and all new except the tank. I will maintain it this time and not use it for 10 years before I change pump oil / filter. Best I can tell...my poorly maintained pump messed up the motor.