Cooling Tower Trouble-Shooting Guide for Conductivity Controllers

	Chemical Residual Within Recommended Range	Chemical Residual Above Recommended Range	Chemical Residual Below Recommended Range
Conductivity Within Recommended Range	All is working well	Reduce chemical feed pump settings. Reduce concentration of chemical mixture	Check to see that chemical pump is primed.Increase chemical feed pump setting Increase concentration of chemical mixture
Conductivity Below Recommended Range	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check to see that controller is properly set.Check solenoid for excessive bleed caused by dirt or sediment not allowing solenoid to close.Check float in tower for high water level causing overflow. Check for water leaks in system.	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check to see that controller is properly set.Check solenoid for excessive bleed caused by dirt or sediment not allowing solenoid to close.Check float in tower for high water level causing overflow.Check for water leaks in system. Reduce chemical feed pump settings	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check to see that controller is properly set.Check solenoid for excessive bleed caused by dirt or sediment not allowing solenoid to close.Check float in tower for high water level causing overflow.Check for water leaks in system. Increase chemical feed pump settings
Conductivity Above Recommended Range	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check solenoid to see that it is opening for bleed as required.Check coil on solenoid to see that it is energized when coil should be open. Check strainer location before solenoid to make sure it is clean and allowing good flow.	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check solenoid to see that it is opening for bleed as required.Check coil on solenoid to see that it is energized when coil should be open. Reduce chemical feed pump settings	Check to see that probe for controller is clean. Do not touch with fingers, use cloth to clean.Check solenoid to see that it is opening for bleed as required.Check coil on solenoid to see that it is energized when coil should be open. Increase chemical feed pump settings and check to see that chemical feed pump is primed