Solution tank level indicator (if fitted) shows empty when tank is full, or full when empty.

Safety: Disconnect power before accessing sensors.

• Inspect float: If your Prochem model uses a float, ensure it moves freely and is not jammed by debris. Clean and re-seat as needed.
• Clean probes: For probe-type sensors, clean with a non-abrasive pad to remove scale or chemical buildup.
• Check wiring: Verify that the level sensor harness is connected securely to the control PCB and not damaged.
• Replace sensor: If readings remain incorrect, replace the solution tank level sensor or float assembly.