NSi Industries OSC20U - Manual (Page 2)

TROUBLESHOOTING
Lights stay on
Lights stay off Force lights on
Force lights on
Move sensor
Lights stay off
Lights on too long
Hallway traffic
turns lights on
Air conditioning
interference
Reduce green knob
by 15%
Move sensor, tempor-
arily reduce sensitivity
Typical setting is
8 minutes
Connect red to blue wire
at power pack
Connect red to red
(relay wires)
Put in timer test mode
and walk hallway
Check switch settings
Bad low voltage
wiring
Bad high voltage
wiring
Timer setting
too high
Sensor can “see”
into hallway
PROBLEM POSSIBLE CAUSE TEST RESULT