The unit will need to be repaired or replaced. It is important to have all equipment that was connected to that AC Mains Line inspected for proper operation. Note: The unit will still operate but no AC Spike or Suppression protection will be available.
Although the Clamping Suppression circuit virtually assures protection from most transient voltage spikes and surges, nature has a way of occasionally creating electrical forces that are beyond the capabilities of any device to absorb without some degree of damage. In the rare instance that this occurs, the clamping circuit can be damaged during the suppression.
Check the AC outlet that the ETA-20SH is plugged into for 120V AC voltage. If no voltage is present, check to see if the AC outlet is on a GFI and check to see if it was tripped. If it has not been tripped trace the AC Mains outlet back to the electrical panel and check the AC Mains breaker to see if it is tripped.
AC Mains power is ok (120V), internal 20A (ETA-ECM20,ETA-ECM20M,ETA-20SH) Slow Blow fuse is blown. Open ECM unit and replace the fuse with a Slow Blow type.
Incoming AC Mains circuit breaker has tripped due to excessive load.
ETA-20SH
AC Power Conditioning & Suppression Module
TROUBLESHOOTING THE ECM MODULE WITH AN ETA-ECS3
Note: All troubleshooting should be done by a certified electrician.
Issue 1: Incoming AC LED on the ECM is not illuminated.
Possible Cause #1:
Action Needed:
Possible Cause #2:
Action Needed:
Issue 2: AC Fault LED is Flashing on the ECM.
Possible Cause:
Action Needed:
Issue 3: Unit is set to External Trigger, the incoming AC LED is illuminated but the Active LED is not illuminated. Possible Cause #1 External DCV from the ETA-ECS3 is not connected across the “+” and “G” terminals. Possible Cause #2 External DCV voltage polarity is not correct across the “+” and “G” terminals.
Possible Cause #3 External DCV voltage is too low to activate the trigger circuit. Must be a minimum of 5VDC to activate the ECM module. Possible short in the wiring system.
Issue 4: ECM Active LED is not illuminated, incoming LED is illuminated but the Abnormal LED on the ETA-ECS3 is flashing.
Possible Cause The AC Mains Voltage exceeded 127VAC or the voltage dropped below 107VAC activating the “EVS” shutdown.
Action Needed The ETA-ECS3 must be re-sequenced to turn off the LED, measure the AC mains before turning On. If the voltage is between 117VAC and 123VAC you may proceed to reset the ETA-ECS3 by restarting the start up sequence. Note: It is important to have all equipment that was connected to the module be inspected for proper operation. If the problem persists, contact your local power company for the cause of unstable AC line conditions.
1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.
Telephone: 800-321-6699 • Fax: 800-996-3821
Specifications are subject to change without notice.
