Mighty Mule FM131 - Manual (Page 6)

6
Wireless Driveway Alarm Instruction Manual • 03.04.12
Troubleshooting
System not detecting vehicles:
• Remove the outer cover from transmitter and check to see
if LED blinks when a vehicle passes the sensor. The LED
indicates that a vehicle was detected and it is transmitting.
• Is the distance to the base unit within the max range of
400 ft.? Remember that foliage, trees, and buildings in the
line of sight from transmitter to indoor unit will reduce the
transmitting range.
• Metal buildings such as mobile homes can block the
signal. Try placing the indoor unit close to a window facing
the outdoor sensor.
• Kitchen appliances or other electronics may interfere with
reception. It may be necessary to adjust the position or
relocate the RECEIVER for optimum results.
• Are the DIP switches on the indoor and outdoor units both
set the same?
• Make sure receiver volume control is turned up.
• Remove the “AA” batteries - make sure there are no large
metal objects or vehicles within 12 feet of the SENSOR -
replace the “AA” batteries and allow 60 seconds for it to
recalibrate.
- Replace TRANSMITTER batteries when indoor
RECEIVER’s low battery light comes on.
- In locations where weather varies use Lithium-
Alkaline “AA” batteries for best performance.
NOTE: The audible chime will activate once every 15
seconds unless reset button is pressed.
• Is the sensor installed close to driveway as shown?
Sensor detecting vehicles on the street:
• Is the sensor probe at least 25 feet from the edge of
the road? Try moving the sensor farther from the road.
Remember to keep it close to the edge of the driveway.
• Adjust the sensitivity control to reduce sensitivity. Make
small changes until street vehicles are not detected.
Counterclockwise adjustments make the sensor less
sensitive.
Indoor base unit detecting a neighbor’s driveway alert:
• Select a different TRANSMITTER/RECEIVER code using
the 4 position DIP switch on the transmitter and the indoor
unit. Both sets of switches must be set exactly the same.
Place Driveway Sensor at least
25 ft. from roadways, neighbor’s
driveways to prevent false signals
Senses vehicles and
large moving metal objects
within a 12 ft. radius
ROADWAY
Up to 400 ft. range
from transmitter to receiver
MIN MAX
SENSITIVITY
TRANSMITTER CODE
TRANSMITTING
1 2 3 4
TRANSMIT
TER CODE
1 2 3 4
Code Setting
DIP Switches
INSIDE TRANSMITTER
BOTTOM OF RECEIVER
Sensitivity
Adjustment
Potentiometer
Transmitting LED
1 2 3 4 1 2 3 4
FACTORY CODE YOUR CODE
If you change your DIP switch settings make note
here for future reference.