F1F1 : Flow Low Fill Pump

The number on the end of the error code refers to which pump is having the issue. For example F1F#.

There has been no flow or low flow during a pump fill operation.

There is a restriction on the outlet side of the pump or color stack

Make sure there are no restrictions in the color stack and that the dump valve is actuating.

Thick viscosity paint requires more pressure to pump

Increase non-mix pressure if necessary to create flow during the fill function.

The pumps do not have to move for the system to build enough pressure to meet the setpoint

Increase non-mix pressure if necessary to create flow during the fill function.