GE Industrial Solutions ProTrip Trip Units for Low-Voltage - Manual (Page 17)

ProTrip™ Trip Units
Chapter 4. Maintenance and Trouble-Shooting
11
4–4 Trouble-Shooting Guide
The following guide is provided for trouble-shooting and
isolating common problems. It does not cover every
possible condition. Contact the Customer Support Center
at 800-843-3742 if the problem is not resolved by these
procedures.
Symptom Possible Cause Corrective Action
1. The health monitor
function of the target
module does not
operate.
Line current is below 20% of
the breaker sensor rating.
The target module is not
seated properly.
At least 20% of the current sensor rating, X, must be
flowing through the breaker to activate this function.
If the load current is below this level, power the Trip
Unit with the Test Kit or the Portable Battery Pack.
Verify that the target module is fully seated in its slot.
2. The trip indication
target will not clear.
The target module batteries
are low.
Replace the batteries in the target module.
3. The battery check
( BAT ) LED on the
target module does not
light.
The target module batteries
are low.
Replace the batteries in the target module
4. The circuit breaker trips
at too low a current.
The rating plug is not fully
seated.
An incorrect rating plug is
installed.
Verify that the rating plug is fully seated in its slot.
Check the current rating and catalog number of the
rating plug.