Results 1 to 10 of 10
03-28-2010, 01:12 PM #1
Using a run cap in place of start cap
I just left a job and only had a run cap on the truck .... sad yes I know.
Small Walkin box with a copeland, the start cap was a 88-106MFD which popped the oil out the top.
I used a 10uf run cap just to see if it would get him running, and it did just fine it seems.
Im hoping this will get him thru today until I can swith it out tomorrow for the correct cap.
It didnt get hot or anything on startup, and the wires are not getting hot either ... so I felt pretty comfy leaving it that way.
Anyone ever tried this ????
03-28-2010, 03:24 PM #2
03-28-2010, 04:03 PM #3Member
- Join Date
- Jun 2003
10 uf seems quite low considering it had a 88-108 on it. I would have placed a bunch of caps in series to get as close to the original value as I could....
03-29-2010, 05:47 PM #4
It was pulling 45 amps dropping to 10 .... so I felt is was ok.
I removed a leg from the relay and short cycled it a few times before leaving.
I was amazed it worked, and probly crazy to try it .... but it did, and yes I am a little bit
03-29-2010, 06:55 PM #5
Have a hard start kit on your truck next time.It takes courage to grow up and turn out to be who you really are.
- E.E. Cummings
03-29-2010, 07:03 PM #6
I like the idea of having a good start kit with a potential relay on the truck.
I would not place a cap in service without it being close (20%) to the specification.
I would say that you were lucky. All of the variables might not work in your favor next time.
03-29-2010, 07:19 PM #7
03-29-2010, 09:07 PM #8
A great tool on the truck
I keep couple of those Turbo Caps, usually gets me out of a jam.
Never tried what you did before, MFD Range to far out for me to trust operation, but it worked for you.
03-29-2010, 09:31 PM #9
03-29-2010, 10:24 PM #10
SPP6 is handy to have, I also you them to replace PTC’s in a bind.