Diagnose Gun/Hose Blockage

What happens here

With the spray tip removed, the operator tests the gun's function again. Despite the pump running and pressure being indicated on the gauge (as mentioned later), no paint is dispensed from the gun's nozzle. This absence of flow, even without the tip, strongly indicates a blockage further back in the system—either within the gun's internal components or the high-pressure hose connecting it to the pump. The operator confirms aloud, 'Nothing's coming out of the gun.'

Goal: After confirming the tip is not the issue, the next step is to determine if the blockage is within the spray gun or the high-pressure hose.