Wagner Paint Crew System I Have A Wagner Paint Crew (airless) And The Pump Will Continually Run As If It's Trying To "prime" The Line.

I have a Wagner Paint Crew (airless) and the pump will continually run as if it's trying to "prime" the line. - wagner paint crew system

Normally the line of the first 8-10 seconds, but not recently been able to cover the first and increase the pressure. What could go wrong? I thoroughly cleaned the machine and tried to warm running water that previously thought.