Farm Master model A-9 won't go past 20 PSI

My neighbor had it in her garage for 9 yrs. It runs. I put new oil in it, chk the wiring and fired it up. It will not go past 20 lbs. I also opened the drain valve to insure no water was in the tank.

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Oct 13, 2014
Farm Master model A-9 won't build air
by: Bill

I couldn't find any info about this air compressor at all, so I cannot offer specifics.

That your Farm Master model A-9 air compressor will not build air pressure is not an uncommon problem, and the reasons and some solutions can be found on the troubleshooting page why air compressors run but don't build pressure. See that page for information, and then add a comment here if you still have questions.

Bill

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