Main Pump error: How to resolve it

The reason that this error message occurs, is probably because there is a loss of pressure in the main pump of the PreTreater Pro. To restore the issue, please follow the steps below:

STEP 1

Make sure that your nozzles are fitted whenever you use the machine. If you accidentally spray without the nozzles on, the main pump will not be able to control the pressure, resulting in an error. The only case that the nozzles should be off, is when the machine is on maintenance mode.

STEP 2

The tap with the tubes attached should be well secured on the tanks, otherwise an air leak might occur that will cause the error to appear. If this happens, go to the Tanks Page and press the Recirculate button for 3 seconds to restore the pressure.

STEP 3

If during usage you can’t hear the main pump working, then please proceed on contacting our support team at: Polyprint support