DE02 : Leak Detected Pump

The number on the end of the error code refers to which pump is having the issue.  For example DE0#.

This is a manual stall test failure when the pump cannot build pressure to the target “Stall Test Pressure.” Will fault after 30 seconds.

  • Make sure the pump and down stream color line are loaded with material.


  • Determine if leak is external or internal by visually inspecting the system for fluid leakage. 
  • Fix all loose or worn hoses, fittings, and seals. Inspect all valve seats and needles for wear, and replace worn piston or throat seals.