UFO Apollo, User Manual, Page: 25 / 28

TROUBLESHOOTING
25
UFO LIGHTING
Problem Probable Causes Remedy
[GENERAL]
System is dead- power LED on Apollo PSU
junction box not lit – no light output from Apollo
Mains supply off or fuse blown Check supply & reinstate
Loose/faulty mains connection Check and repair
Loose PSU output wire or con-
nection
Check all connections
PSU failed – check output with
DVM
Replace PSU
[GENERAL]
Power LED on Apollo PSU junction box lit, but no
light or output from Apollo
Loose or broken wire to Apollo
LEDs
Check all connections are
secure and making good
contact
Check junction box output and
all connections with DVM
Output polarity reversed
[GENERAL]
Power LED on Apollo PSU junction box lit, either
no light or dim light output from Apollo
PSU output inadequate for load
(14.4W/M for fixed CT; 12W/M for
tuneable CT, plus voltage drop
over cables)
Check PSU output and tape
length – upgrade PSU
[DIMMING MODE]
No dimming, Apollo LED output always at 100%
Dimmer faulty, wrongly set up,
wrongly connected etc
Check / replace dimmer
Check dimmer instructions -
ensure set up correctly
Wrong type of dimmer used –
ensure 24V constant voltage
dimmer used.
[DIMMING MODE]
No output from Apollo when dimmer used (Apollo
PSU junction box lit).
Also flickering, flashing.
Also lighting but not dimming
Dimmer faulty, wrongly set up,
wrongly connected etc
Check all wiring. Bypass
installation wiring using known
good cables to test if wiring is
at fault.
Check dimmer instructions -
ensure set up correctly
Check / replace dimmer
Try bypassing dimmer –
connect junction box directly to
Apollo to check function
Wrong type of dimmer used –
ensure 24V constant voltage
dimmer used.
Wiring issues – incorrect wiring
accounts for around 90+% of in-