compressor loads and unloads frequently but not using air

by SIVA KUMAR
(india)

LS12-50 pressure switch changed still the compressor builds pressure instantaneously and as the unloading starts the pressure in gauge goes down and the compressor loads without using air from discharge

Comments for compressor loads and unloads frequently but not using air

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Feb 09, 2016
Loading and unloading
by: Anonymous

Check your pressure regulator. Make sure the hole in the bottom is clean and blowing air.

Sep 03, 2015
regarding unloading loading
by: sivakumar

Thanks for the comment but The discharge valve is closed and there is only minimum pressure valve and blow down valve there is no check valve

Aug 29, 2015
leak?
by: Doug in s.d.ca

I don't know if there's a check valve on the airend output, but if there is, may be stuck open.

Otherwise, sounds like the airend is allowing backflow, possibly due to low/dirty/degraded oil.

Good luck.

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