Air compressor DeWalt D55141

[Luis]

I have air compressor D55141. This compressor is running and running never make stop, when the valve pressure past 130 the valve safety is open and continued running.
How I can repair and what is the part need replaced?

[Mark]

Hi Luis,

It sounds like your pressure switch has failed and will need replacing. It is item #312 on page B of the parts diagrams. The pressure switch is part #A05802 and is available from http://ereplacementparts.com.

Good luck with your repair!

-Mark