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contactor are secure. Once this is confirmed, then check that the wire connectors on
each side of the contactor coil are secure. If they are secure, next check the field-
installed wires in the contactor lugs on both the line side and load side are properly
installed and that voltage is present on the line side wires. Ensure the current
monitoring device connections are the correct polarity. Ensure the current
monitoring device wires and connectors are fully seated in the respective connector
and receptacles. If these items all have been checked and the issue is not resolved,
please de-energize and contact the manufacturer.
Improper operation of contactor:
Check if the length of the current monitoring device lead wires are coiled close to
other 120/240V lines and if so move them away from the area as this can cause
improper operation. Next check if the current monitoring devices are closed
securely. If they are, check if the current monitoring devices are installed in the
correct orientation with the arrow shown inside the current monitoring device eye
(window opening) pointing in the direction of the current flow. If the orientation is
correct, then verify that both service wires are consistently well below the
operational current specifications for up to 15 minutes (depending on the setting of
timer adjustment) with an amp meter. Ensure the current monitoring device
connections are the correct polarity (while plugged into the control board the red
wire should closest to the partition side wall on each plug). Ensure the current
monitoring device wires and connectors are fully seated in the respective connector
and receptacles.
If the green LED is flashing it indicates there has been no current recorded on one or
both current monitoring devices for some time. Turning on an electrical load should
cause this to stop flashing in less than a minute. If that does not happen check for
improper current monitoring installation and test again. If all these items are verified
and improper operation still exists, please de-energize the device and contact the
manufacturer.
Contactor chatters on and off or makes loud humming noise:
Check for approximately 240V between coil terminals when the contactor is closed. If
this is below 200V check the voltage on the line side of the contactor to ensure rated
system voltage is available. (It should be above 204V) Check for the same steady
voltage on the load side of the contactor when the contacts are closed. If voltage is
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