FL220NF-N-B15A, FL240NF-N-B15A, LEB407NF-N-B15A, LEB807NF-N-B15A, LEB125NF-N-B15A, LEB225NF-N-B15A

Common issues

• Gasket/seal degradation on watertight fixtures allowing moisture ingress
• Corrosion of the housing or terminals in exposed or damp locations
• LED driver or fluorescent ballast failure
• Diffuser/lens yellowing or cracking
• Terminal corrosion causing intermittent operation
• Cable gland deterioration allowing water ingress at the entry point
• Lumen depreciation over service life (LED types)

Inspection checklist

• Check housing and gasket condition for damage or UV degradation
• Verify watertight closure and cable gland integrity
• Check terminals for corrosion and confirm earthing continuity
• Function test (operation, flicker, brightness)
• Check diffuser/lens for cracking or heavy yellowing
• Confirm the fixture's certification marking matches its installed zone (e.g. explosion-protected units in hazardous areas)
• Check mounting/fixing security against vibration
• Inspect for moisture inside the housing when opened for maintenance

Service intervals

Critical spares

• Gasket/seal kit
• Diffuser/lens cover
• LED driver or ballast/starter
• Cable gland
• Lamp/tube (fluorescent types)

Safety

• Isolate and lock out the circuit before opening any fixture
• Explosion-protected fixtures must only be opened, repaired or have covers refitted per their certification - unauthorised parts or an incorrectly refitted gasket can void the explosion-protection rating
• Risk of electric shock from damaged wiring or corroded terminals
• Working at height when servicing overhead fixtures

Class survey

Marine lighting fixtures in hazardous or classified spaces must retain their explosion-protection/type approval marking; electrical survey typically checks fixture condition, gasket integrity on watertight/explosion-protected types, and that emergency/escape route lighting is functional and correctly distributed per SOLAS requirements.