L-804 Elevated Runway Guard Light
96A0218 Rev. X
Troubleshooting
© ADB bvba All Rights Reserved18
2.5 Troubleshooting
This section contains troubleshooting information. This information covers only the most
common problems that you may encounter. If you cannot solve the problem with the
information given here, contact your local ADB Airfield Solutions representative for help.
NOTE: In case of failure of external controller, refer to the maintenance document for the
controller.
Table 5:
Troubleshooting Steps
WARNING
Allow only qualified personnel to perform the following tasks. Observe and
follow the safety instructions in this document and all other related
documentation.
De-energize the circuit and lock out the circuit or regulator so that the circuit
cannot be energized by remote means before attempting to service the
fixture.
Problem Possible Cause Corrective Action
1. Lamp not energizing
Defective lamp
Replace lamp. Refer to Replacing Lamp in the
Maintenance section.
Defective PCB Replace PCB.
Deteriorated wire insulation Replace wires.
Moisture inside assembly causing current
leakage
Open up light fixture. Inspect yellow lens for
cracks. Replace lamp and any damaged parts.
Refer to Replacing Lamp in the Maintenance
section.
2. Short lamp life
Defective lamp
Replace lamp. Refer to Replacing Lamp in the
Maintenance section.
Current too high Check lamp current.
3. Lamps dim
Dirty lens
Clean with soft cotton cloth and glass cleaner or
mild detergent.
Current too low Check lamp current.
4. Both lamps on and not
flashing
PCB DC power supply failure Replace PCB.
5. Current driven RGL won’t
flash lamps at low current
settings
Defective green transformer in wiring harness
Replace the transformer or tighten the
connections for it.
To Next Page
Loading...
