Air Compressor repair

[GPeach]

Good day all!
I have a spritech portable air compressor, which I believe you call a shoebox. I have a Benjamin Akela 22 cal.
As I was filling the tank, I heard a very loud POP! I changed out the little brass colored disk that's located above the air line bleed screw. It was shaped like a tophat so, I changed it. This happened once before and it worked. But, this time it did not work. I can't get any pressure at all. Could it be the check valve? Where is that located?
BTW, the motor sounds strong. No problems there.
Also, how do I find a repair shop?
Thanks,

GPeach

[mr007s]

Check this link, might be something there that will help.
https://www.google.com/search?q=spritech+portable+pcp+air+gun+compressor+rebuild&sca_esv=7ffbc6d94dac2745&ei=m-MYaK-eELqh5NoP-4jf8Ac&ved=0ahUKEwjv1_-33IyNAxW6EFkFHXvEF34Q4dUDCA8&oq=spritech+portable+pcp+air+gun+compressor+rebuild&gs_lp=Egxnd3Mtd2l6LXNlcnAiMHNwcml0ZWNoIHBvcnRhYmxlIHBjcCBhaXIgZ3VuIGNvbXByZXNzb3IgcmVidWlsZDIFECEYoAEyBRAhGKABMgUQIRigATIFECEYoAEyBRAhGKABMgUQIRirAkj1YlCkH1iVPXABeAGQAQCYAZABoAGgBKoBAzAuNLgBDMgBAPgBAZgCBaACsATCAgoQABiwAxjWBBhHwgIGEAAYFhgewgILEAAYgAQYhgMYigXCAgUQABjvBcICCBAAGIAEGKIEmAMAiAYBkAYEkgcDMS40oAfVHbIHAzAuNLgHqwQ&sclient=gws-wiz-serp