Common Issues
Air is entering the pump – Check suction lines to make sure all connections are tight. Check the level of the chemical tank. Remove obstructions and clean strainers.
Pump is not accurate – Check the suction line and clean the strainer. Check for obstructions in suction lines, discharge lines, and injectors. Check the condition of the tube and roller. Ensure the roller is the correct match for the tube. (See Spare Parts)
The pump will not run – Check if the TFD (leak detection) has detected a solution/chemical in the pump head. Or the Flow Verification System “FVS” has been activated. If the tube has leaked, it must be replaced, and the pump head cleaned before re-starting. Turn power on/off to reset the TFD or FVS.
Electricals
The A-100NA will not power up – Check power source or try a different power source. Check to ensure the power cable is properly wired.
FAQs
Frequently Asked Questions
A-100NA Troubleshooting
- My pump won’t prime, why?
Pump priming problems can be caused by clogged or blocked suction and discharge lines. Priming can be difficult or impossible when suction lines are not airtight. Check suction strainer an injection valve for clogs. Check suction tubing or piping connection at the pump. Redo connections as needed. Also check to make sure tubes and rollers are compatible and installed correctly.
My pump keeps losing prime, why?There are a few reasons why the pump can lose prime. Typically, there is a poor seal or leak in the suction line somewhere above the solution level, or the level of the solution has dropped below the end of the suction tubing causing the solution to fall out of the suction tube. Check the tubing connection at the pump and ensure it is tight and leak free. Check all other connections, fittings, valves, and unions in the suction line to ensure there proper seals which will prevent the pump from drawing air into the suction. A faulty or worn pump roller, incorrect pump roller, or damaged pump head or pump shaft can also contribute to losing prime by not allowing the pump to properly pinch/squeeze the tube.
Pump will not operate below 10% mark on dial knob.Some pump models have limitations when it comes to operating below the 10% mark on the dial knob. This restriction is primarily because of the minimum current needed to overcome the locked rotor current condition and the load applied from the tube. The specific percentage speeds for each RPM and tube combination can be found in the attached chart.
Pump shuts down after a few seconds of operation.check for liquid in the pump head area Make sure the TFD sensor pins are clean and remove any residual build up.
