WLC TROUBLESHOOTING GUIDE
Please use our troubleshooting flow to resolve the most common issues. Be prepared to provide the Serial Number located on exterior right side of the control panel.
PROBLEM/ISSUE | POSSIBLE CAUSE | ACTION |
|---|---|---|
Power LED Off | Loss of Input Power Source Power Surge or Lightning Strike | Check if main breaker tripped Faulty input power wiring connection |
High Alarm LED constantly on | Defective PCB | |
Power/Fault LED flashing | Probe Sequence Fault Damaged Sensor Cable or Wires Breather Hole Obstruction | Check for good extension rod connections Clean PVC Stilling Chamber |
Tank overflowing | Defective Solenoid Valve Defective Power Relay | |
Tank will not Fill | Loss of Input Power Source Power Surge or Lightning Strike Defective Solenoid Valve Defective Power Relay | Check if main breaker tripped Faulty input power wiring connection |
Intermittent False High Alarm | High Voltage interference |
PROUDLY MADE IN THE U.S.A. 
All of our liquid level controls and liquid level sensors are assembled right here in the U.S.A.
where we monitor every step of the process.
NOT SURE WHAT YOU NEED? JUST CALL BECAUSE WE’RE HERE TO HELP! 480-905-1892
We offer products comparable to the products offered by the above companies. See our website pages for further information on the products. The tradenames and trademarks in this page are owned by their respective companies or are the same name as the company. They are mentioned for comparison purposes only. They are in no way affiliated with System Dynamics, Inc or WaterLine Controls.