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

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)

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All rights reserved	Issued 2/02