Ingersoll Rand compressor electrical problems. HELP !?!

[lew_boi]

Picked up an Ingersol Rand, 150ltr 240v euro compressor abit ago. Tried it and everything seemed dandy, built air up, tripped in and out fine etc... Went to use it for the 1st time properly and........ Pop, spark + smoke.......

Took the lid off the connection box and it's full of water : ( Seems it lived outside in all weathers in a past life. Dried it all out tried it again, seems to spark from the motor relay and the starter capacitor smokes and smells fried.

Problem is I can't find any genuine parts for it and the spec printed on the capacitor is half worn off. Anyone know what spec cap I should replace it with ? I'm no electrician so learning as I go with this......

Details of it are :
Ingersoll Rand Euro compressor
150ltr
Model no. EN4D30
CPN. 92514207

Details of the top of the motor box :
Type. 1M90L2D
No. 5280/2
1P. 44
kW. 2.2
240v
13.8A
50 Hz
3 HP

[scyman]

Hi,
Same thing happened my Clarke one, which has the same size of motor (3hp).
A capacitor of between 45 and 50 microfarads should do nicely. You'll get one off ebay or from Farnell, etc.
Hope this helps!

[lew_boi]

Would this do the job !?! http://www.ebay.co.uk/itm/Electric-motor-start-cap...

[scyman]

Yep, this is what you're looking for. Just make sure to get the right (50uf)rating. Also, sounds obvious but just check the physical size and configuration for mounting purposes. Some have a stud on the end but some are meant to be held by a clamp, etc. The only type I could find at the time came with a stud which had to be cut off so it could fit it in the plastic enclosure on the motor.

[lew_boi]

Well,
Near on a year since I did anything with my compressor ! Just got moved into my new workshop and thought it's about time to get it working.
Put the new starter capacitor in, tried it and it ran ! For about 12 seconds at which point the starter cap went bang........!?!
Guessing there's a fault with the starter relay not pulling the starter cap out and letting it run on until it blows.
Question is, how can I test it?
And where do you find another ?
Also will a starter relay from something else do the same job ?
Thanks, Lew

[Oldred_V8S]

lew_boi said:

Well,
Near on a year since I did anything with my compressor ! Just got moved into my new workshop and thought it's about time to get it working.
Put the new starter capacitor in, tried it and it ran ! For about 12 seconds at which point the starter cap went bang........!?!
Guessing there's a fault with the starter relay not pulling the starter cap out and letting it run on until it blows.
Question is, how can I test it?
And where do you find another ?
Also will a starter relay from something else do the same job ?
Thanks, Lew

Does it have a starter relay or is it a centrifugal switch? It could be the switch contacts have rusted closed? I'll give you £20 to take it off your hands.

[lew_boi]

No definitely a relay.........

£20 ?? You've lost me !?!