So last summer, I purchased an Air Venturi RovAir compressor for my PCP. It probably has about 40 hours of run time on it and it croaked. I took it apart and found some metal grit in the cylinder. The rings still looked in good shape. I cleaned it all out and re-lubed everything. I put it all back together and plugged it in. It ran nice and smooth until it hit about 1000 psi and then it slowed down and kicked the relay off on it. I tried it a few times and will not het passed 1000 psi. Do you think it is the motor going bad or something else?