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 is not running Check if the pump is waiting for a remote start/stop signal. Or make sure the Start arrow is pressed and the pump is Ready. If the pump is in 4-20ma mode or Frequency input mode, check the incoming signals at the pump to make sure pump is receiving the proper signal, and ensure the cables are connected to the correct inputs at the rear of the pump.
Electricals
The A2 will not power up. Check power source or try a different power source. Check to ensure the power cable is properly connected. Check fuse located next to power supply connection at the rear of the pump.
The Remote Start/Stop is turning on/off or chattering. Check signal cables integrity and proper connection to pump. Check that all signal cables are shielded and properly grounded. Ensure signal wiring is not located or run next to high voltage power or equipment generating EMI. Ensure power wiring to the pump is clean/conditioned.
The 4-20mA signal is dropping or incorrect. Check signal cables integrity and proper connection to pump. Ensure 4-20mA signal is powered via 15-24VDC. Check that all signal cables are shielded and properly grounded. Ensure signal wiring is not located or run next to high voltage power or equipment generating EMI. Ensure power wiring to the pump is clean/conditioned.
The Display reads error code. Follow instructions on the pump and contact factory for assistance. Some error codes may be corrected with a current Firmware Update.
FAQs
Frequently Asked Questions
A2 Troubleshooting
- Why didn’t pump shut off when chemical came in contact with TFD sensor pins?
FLEXFLO® is equipped with a Tube Failure Detection System which is designed to stop pump and provide an output alarm in event pump tube should rupture and chemical enters pump head. Pump will detect a chemical with a conductivity reading greater than 500 microsiemens. Chemicals with a conductivity of less than 500 microsiemens will not be detected. Or the TFD Sensor pins are damaged.
Screen displays CVR even though the cover is attached?Possible causes, the magnet in acrylic pump head cover is damaged or removed. Install a working cover and see it the matter is solved. If it doesn't solve the issue, the pump will be need to be shipped to repair center for service.
