ingersoll rand ssr 7.5 hp did not restart

by Tom Thomas
(Kennerdell, PA)

ingersoll rand rotary screw ssr 7.5 hp manufactured 2005, 17,000 hrs.


Recent used purchase. Changed all filters and fluid. Ran fine when powered up with no receiver tank. Connected to tank and achieved a closed system. Compressor quickly filled tank and shut off. Upon draining tank, compressor did Not restart. Will now not restart. Checked voltage which is OK. No resets that I can get from owners manual. Three fuses checked out with meter. I did lower the setting on the pressure switch with no result. Is there some feedback mechanism I don't get. Feeling rather dumb at this moment. Thanks, Tom

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Mar 17, 2017
SSR UP6-7.5 ?
by: Doug in s.d.ca.

Looks pretty conventional to me.

Your power and standby lights on?

Did you try bypassing the pressure switch? (6 to 7
if the above model)

If that works might be a wiring problem that's intermittent according to temperature and or vibration.

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