TB 43-0149
APPENDIX C
TROUBLESHOOTING, HELIPORT SETS
TROUBLE
PROBABLE CAUSE
REMEDY
1. One light does not
1. Loose connection be-
1. Tighten connection.
burn.
tween fixture lead and
adapter connector.
2. Loose lamp.
2. Tighten lamp.
3. Burned out lamp.
3. Replace lamp.
4. Faulty fixture lead.
4. Replace fixture.
5. Damaged cable or 5. The power
cables from the control panel for loose
connection. the approach light or traffic
control light, if either is not working,
should be inspected for breaks. Check
all connections for these cables. Check
the floodlight power cables, if the
floodlights do not work, for breaks and
proper connections. Check the corner
location light power cables for breaks
and proper connections.
2. No lights burn.
1. Open circuit.
1. Check the cable between the
generator and
control panel for a break or loose
connection.
2. Power supply.2. Turn the voltage
regulator control on the generator to the
position for maximum voltage and check
the voltmeter reading. It should be
approximately
120 volts.
If the
voltmeter reads low, refer to the
appropriate generator technical manual
for
generator
troubleshooting
instructions. If the voltmeter shows a
correct value, check the protective
device inside the control panel. Be sure
to shut down the generator first. If the
circuit between the generator and control
panel has been opened by the protective
device, check all power cables for
damage causing a short circuit. Use a
multimeter and check voltage.
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