- Refill and prime the pump.
Pump will not operate.
- Clean the hose or gun.
- Disassemble and clean the pump (see the lower manual).
- In the future, stop the pump at the bottom of the stroke.
- Keep the wet-cup filled with compatible solvent.
- Repair or replace the driver.
- Remove the lower from the driver.
- If the driver will not cycle and does not blink an error code, then troubleshoot the driver or replace.