L-850D/E F-Range Style 2 Inset Lights

Troubleshooting

Chapter 6: Troubleshooting

Troubleshooting In the table below a number of problems are listed in the first column. In the second

tablecolumn, you will find the possible causes of the problem, and in the third column the solution.

Problem

 

Possible cause

 

Solution

 

 

 

 

 

Light does not

Lamp(s) defective

1.

Replace lamp(s).

energize.

 

 

2.

Replace film disc cut-out (when used).

 

Loose or broken contacts

Tighten or replace the contacts.

 

 

 

 

 

 

Moisture inside assembly causing

1.

Open light assembly.

 

current leakage

2.

Clean, dry, inspect or replace damaged

 

 

 

components.

 

Defective cable assembly or

1.

Open light assembly.

 

defective crimping

2.

Replace cable assembly.

 

Defective isolation transformer or

Check transformer output current with Am

 

secondary wiring

meter.

 

 

 

Check power line between the light fixture and

 

 

 

the transformer, including connectors.

Light does not

Resistance too high or partial short

1.

Replace cable assembly or inner cover

energize at

circuit.

assembly.

normal level.

Light misaligned.

2.

Replace lamp(s) and/or transformer(s).

 

Dirty prisms.

3.

Clean prisms and check orientation of light.

 

 

 

Light beam out

Broken or damaged prism/cover

1.

Replace prism or entire outer cover

of alignment

 

 

assembly.

 

 

 

2.

Check lamp positioning.

Improper beam

Wrong prism

Replace prism with one of the proper colour.

colour

 

 

 

 

 

Dichroïc coating damaged

Replace prism.

 

 

 

 

Short lamp life

Too high current (lamp will have

Check output current of isolating transformer

 

black burns)

at full brightness. Current should not exceed

 

 

 

6.7 A.

 

 

 

Replace transformer if defective; if not, adjust

 

 

 

CCR output current.

 

Moisture in assembly

1.

Open light assembly.

 

 

 

2.

Clean, dry, inspect or replace damaged

 

 

 

components.

 

Defective lamp or lamp bulb

1.

Replace lamp.

 

touched with bare fingers (lamp

2.

If used, replace film disc cut-out.

 

interior will have a yellow-white

 

 

 

powdery appearance if air has

 

 

 

entered through a hole or crack)

 

 

 

 

 

 

 

2002 Siemens Airfield Solutions, Incorporated

96A0266D

28

All rights reserved

Issued 2/02

 

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Siemens L-850D/E F-Range Style 2 Inset Lights manual Troubleshooting, Problem Possible cause Solution