Replace the safety valve if it leaks air constantly.
Air compressor leaking air.
The safety valve pops open to relieve excessive air pressure if the pressure switch fails to shut off the air compressor at the cut out pressure setting.
I have said enough about the dangers and causes of oil leaks in an air compressor.
The valve on the outside of the pressure switch may look something like the one in the image.
Air compressor leakage is common and there are plenty of solutions for this.
At first you have to identify where the oil is actually leaking from your compressor.
That means 20 to 30 of all the money you put into your air compressor in the form of utilities is going down the drain or more aptly up in the air.
If air is leaking from the unloader valve when the air compressor is stopped that points to a problem with the compressor tank check valve not seating properly or its failure.
Now it s time for you to know how you can solve such problems.
If the compressor is only dropping when there is an air line plugged into the coupler then the leak will be found downstream from the compressor coupler.
But unfortunately most of the people don t know how to stop air compressor leaks.
Unloader valve is leaking air.
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To confirm this unplug the air line.
If the air is leaking from the unloader valve then see the page under fixing compressor problems about air continuously leaking from the unloader valve for.
This video show you how to fix an air leak on an air compressor.
If air leaks out the unloader when the pump stops replace the check valve because the check valve leaks air back towards the unloader.
Air compressor oil leak repair how to solve.
If the air leak stops the hose has a hole or a connection downstream of the compressor coupler is the problem.