OPERATOR'S STATION
TM 5-3805-263-14&P-3
PROBLEM A: ALL Indicators ON.
Possible Causes: a. Test switch is bad.
b. Wire, in the harness, that goes to the test switch is grounded.
c. Wire, in the harness, that goes to the test switch is shorted to another wire that is
at ground potential.
d. Operator panel is bad.
TROUBLESHOOTING
1. Disconnect the harness plug from the operator panel. Check for continuity between
connections 2 and 15 in the harness plug. Use a continuity tester or a digital
Continuity
No Continuity
Go to Step 2
Replace the operator panel.
2. Turn the Disconnect Switch OFF. Remove the wires from the test switch. Use a
continuity tester or a digital multimeter to check for continuity across the switch.
Make sure the test switch is in the OFF position.
Continuity
No Continuity
Replace the test switch
Replace the harness. (The wire to the test switch is
grounded).
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