EcoWater CHC Series, Service And Troubleshooting Manual

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3. If the above has been verified and power is available to the conductivity meter and it will
not turn ON, then replace the meter.
5.1.7 The CHC Control Station will not power ON (newer style skids only)
1. The control station will power on whenever power is supplied to the skid. If the pump will
function and the control station will not come ON, verify that the breaker to the DC power
supply has not been tripped.
2. If the breaker is tripped, reset it and verify operation. If the breaker continues to trip, then
disconnect one item at a time from this list until the breaker no longer trips: Blow Down
Actuator, Relay, Motor Contactor and finally the control station. If the breaker continues to
trip after each one of the above is removed from the circuit, then replace the DC power
supply. Once the problem has been isolated take the appropriate actions to verify the wiring
and connections and then replace the defective parts.
3. If the 24Volts DC is available at the Control Station but the display will not respond,
replace the Control Station. To replace the unit, disconnect all wire terminals from the unit
and then remove the four mounts from each corner of the controller and remove it from the
panel. Once the new controller has been installed, reconnect all terminals and test.
4. Contact EcoWater CHC Service if further assistance is needed.
5. If the PLC will not power ON and the pumps will not start and your system incorporates a
24VDC power supply, it is possible that one of the actuated valves is pulling down the
24VDC supply. Open the motor starter box, Turn the Power Disconnect ON, and verify if
the power supply LED is fully lit. Disconnect the Din Rails from the actuated valves or
remove the relays if the valves are wired directly and then try to turn on the Power
Disconnect again. If the PLC then lights, one of the actuated valves is pulling the power
down. Connect one valve at a time and verify operation of the system as discussed earlier.
When the power will no longer come on, disconnect the last actuated valve and verify it will
again power ON. Replace that actuated Valve