– 6 – 
 
TROUBLESHOOTING 
SYMPTOM  CAUSE  REMEDY 
Batteries are incorrectly installed or  
dead. 
Check for correct battery installation, or replace dead batteries. No detection, when walking 
through the detection area. 
Wiring is faulty or loose.  Check all connectors and wiring. 
  Water in unit.  Check for cracks in the housing that would allow water infiltration.  
Replace unit. 
  Transmitter or PIR sensor is faulty.  Replace unit. 
No detection occasionally, or 
poor detection. 
Sensitivity is set too low.  Try a higher sensitivity setting. 
  Detection area is not set correctly. 
Perform a Settings & Adjustments procedure.  
Low battery fault indicated 
on system keypad display. 
Batteries are very low or dead.  Replace batteries. 
Alarms when no one is 
walking through the 
detection area. 
Sensor is not perpendicular to 
ground. 
Remount and align sensor so the detection area is parallel to the 
ground. 
  Sensor is detecting moving trees, 
bushes, or a strong source of light. 
Check for moving trees, or bushes or a strong light source.  Perform a 
Settings & Adjustments procedure.  
  Lower detection area is too long.  Set Detection Length to a shorter range. 
  A heat source in the area may be 
causing an abrupt temperature 
change. 
Move or remove the heat source. 
Mask the area pointing to the source of heat, or shorten the Detection 
Length.