P4P1 : Pressure High Supply Pump

To avoid serious injury follow all warnings and instructions in the manual. Wear appropriate personal protective equipment.

The number on the end of the error code refers to which pump is having the issue. For example P4P#.

The supply pump fluid pressure for pump # is greater than 90% of the user-entered Stall Test Pressure.

  • Check supply for pump #, decrease supply pressure.