My compressor has began to blow the unloader line off of the check valve at 100 psi. The compressor will continue to run until I turn it off. I can’t figure out what is causing this. Can anyone offer a thought?
The check valve might be obstructed and require cleaning or replacement.
If the unloader hose / tube connects to the check valve with a compression fitting, the compression ring might be cracked.
Thanks all, I have replaced the check valve and the line is nylon/plastic. I have had this compressor for probably 15 years and never this problem. I have replaced the line.