DKD3 : Position Failed Pump

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

Pump was unable to reach it’s drive position.

Not enough air is supplied to the dosing valves

Ensure that at least 85 PSI is being supplied to the dosing valves.

The pressure at the pump outlet is too high

Check for an obstruction downstream of the pump that would increase pressure. Ensure the feed pressure is within 1/2 – 1/3 of the target pressure.