X10 Wireless Technology MT12A Outdoor Timer User Manual


 
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1. If a particular Module won’t go on or off from the buttons on the Mini Timer:
Check that you have power to the outlet controlling the Module and the switch on the
light or appliance is ON.
Check that the Unit Code and Housecode on the Module are set correctly.
Try plugging the Module and the Mini Timer into the same outlet. If the Module doesn’t
work in ANY outlet, not even with the Module and the Mini Timer in the same duplex
receptacle (top and bottom) the Module may be defective. Contact www.x10.com/
support if you need help.
2. If you can’t control ANY Modules from the Mini Timer.
Check that there is a time displayed on the Mini Timer and that you have power to the
outlet it is plugged into.
Check that the Housecode for the Mini Timer is set correctly (see page 13). Try plugging
the Module and the Mini Timer into the same outlet. If NONE of your Modules work in
ANY outlet, not even with the Module and the Mini Timer in the same duplex receptacle
(top and bottom) the Mini Timer may be defective. Contact www.x10.com/support if you
need help.
Intercom systems
Intercom systems which send voice signals over existing electrical wiring may interfere
with the operation of the Mini Timer when the intercom is in use. If the Intercom system
has its own separate wiring it will not cause a problem.
Power interruptions
When the power is restored after an outage, Lamp Modules and Wall Switch Modules
will normally be OFF. Appliance Modules have a “latching relay mechanism” and will
stay as they were before the interruption.
This means that when you first plug in an Appliance Module which you have just
purchased, it may in an ON or OFF state (the state it was in before unplugging it after
factory testing).
Battery backup
If you install two AA alkaline batteries in the battery compartment of the Mini Timer your
programmed times will be protected for up to 48 hours in the event of a power outage.
The backlight and the buzzer do not operate when the unit is running on the backup
batteries.
Battery indicator
If the batteries are low, dead, or not installed, the low battery indicator will be shown in
the display. It is recommended that you check the condition of the batteries regularly
and replace them at least once every 6 months.
Troubleshooting