Service

Service & Support

Errors and possible causes

Fault
Possible causes
Action*
Luminaire has failed
Current not switched on
Switch on current
 
 
 
 
Fuses defective
Check fuses
 
 
 
 
End of the useful life of the lamp has been reached
Replace lamp
 
 
 
 
Defective lamp
Replace lamp
 
 
 
 
Phase selector not correctly locked in place
Lock phase selector in place correctly
 
 
 
 
Ambient temperature is too high
(e.g. in shop window, display case)
In the event of overheating the automatic switch-off device in the luminaire is activated and switches the luminaire off. Please then switch the mains switch off and on again and ensure sufficient ventilation.
 
 
 
 
Wattage of the lamp and of the ballast do not always match
Replace lamp => use correct wattage
 
 
 
 
Voltage fluctuations in the mains
Electrician
Inform/commission skilled personnel (electricians)
 
 
 
 
Incorrect load distribution
(in the case of luminaires in power tracks)

Electrician
Inform/commission skilled personnel (electrician):

  • Divide luminaires over three phases and use a three-phase residual-current-operated circuit-breaker
  • Use a surge-proof, short-time delay three-phase residual-current-operated circuit-breaker
  • Use a 30mA three-phase residual-current-operated circuit-breaker (if permitted)




 
 
The lamp flickers or burns unsteadily
The end of the useful life of the lamp has been reached
Replace lamp




 
 
The luminous colour of the lamp has a greenish cast
The end of the useful life of the lamp has been reached
Replace lamp
 
 
 
 
Wrong wattage of the lamp
Replace lamp => use correct wattage




 
 
Glass bulb of the lamps is discoloured black
The end of the useful life of the lamp has been reached
Replace lamp




 
 
The luminous power has decreased ("less light comes out of the luminaire")
The end of the useful life of the lamp has been reached
Replace lamp
 
 
 
 
Dirty safety glass / reflectors
Cleaning of the safety glass / reflectors




 
 
Even after replacement of the lamp the luminaire does not switch on again
The automatic switch-off device integrated into the ballast automatically switches the lamp holder off-load in the event of the use of defective lamps
Switch off and on at the mains
 
 
 
 
Ballast defective
Electrician
Inform/commission skilled personnel (electricians)



(*) Please observe the safety notes and the assembly/mounting instructions!