![]() The LED next to the programmed mode will glow red when the timer programming is activated and power is being provided to attached devices.When set to "ON", the timer will provide continual power to attached devices until the timer is switched to "OFF", or to any of the other Operating Modes.Headlights, porch lights, street lamps and other external lighting sources will not interfere with the active timer program. Once programming activates at dusk in the 2hr, 4hr, 6hr, 8hr, 12hr or dusk-to-dawn mode, the program cycle will complete before the timer resets.The photocell is located above the "SET" button on the face of the timer. This timer operates using a light-sensitive photocell that senses when the environment is getting dark (dusk) or light (dawn).The timer will function outdoors when installed and operated as outlined in this manual. This timer is weather-resistant and rated for Outdoor Use.Plug the devices into the outlets on the bottom of the timer. After 5 seconds, LED will flash rapidly to confirm selection.Ģ Hrs - Power will turn on at dusk and remain on for 2 hoursĤ Hrs - Power will turn on at dusk and remain on for 4 hoursĦ Hrs - Power will turn on at dusk and remain on for 6 hoursĨ Hrs - Power will turn on at dusk and remain on for 8 hoursġ2 Hrs - Power will turn on at dusk and remain on for 12 hoursĭusk-Dawn - Power will turn on at dusk and remain on until dawn Press the "SET" button to cycle the LED's to the desired mode. Do not use extension cords to connect the timer to the power source. Use an outdoor-rated three-pronged grounded electrical outlet. Place the timer over the screw heads and push down to lock into place.Insert two #6 sheet metal screws (not included), leaving screw heads protruding 1/8 inch from the surface.Drill two 3/32 inch pilot holes where indicated on the mounting template.Temporarily secure the mounting template to the flat surface where the timer is to be mounted.Create a mounting template by placing a sheet of paper over the back of the timer and punching holes through the paper where the mounting holes are located on the timer.For a more secure mounting, use the two MOUNTING HOLES on the back of the timer.Using a screw or hook (not included), secure the MOUNTING TAB at the top of the timer to a wall or post.INSTALL TIMER to a vertical a flat surface close to a properly installed outdoor-rated grounded receptacle.If manual override does not work, then I discovered that timers are no longer any good Programming: Set present time Then set ON time for program 1 Set OFF time for program 1 Then set ON time for program 2 Set OFF time for program 2 Most timers will not function if there is a conflict in programming > for example Program 1 says ON at 6 and OFF at 7 and Program 2 says opposite or has overlapping times When events are set, press SET once > this will put timer in RUN mode If manual override works, and you set programming correctly, but timer does not carry out instructions, I guess the timer is no good. Does the manual override work? This indicates whether the timer on-off switch operates. These timers have 1 year limited warranty.ĭT121 Manual All Intermatic manuals Intermatic does not show DT11 Intermatic shows the DT121 is no longer available If the display shows and you can set programs, then the battery is good. 7) If timer is older, the internal battery may be fading. 6) Timer is defective: 6-8% of all timers arrive defective. 5) Timer is not set in AUTO mode, and timer is in random or countdown mode. Or program1 and program2 ON-and-OFF times conflict. 4) Programming has conflicts, for example program1 ON is for 8am Mon but program1 OFF is for 11am all-days-of-week. ![]() 3) Timer is programmed for ON times but not for OFF times. For example if outlet polarity is reversed, or if load has interference. 2) Outlet is wired wrong: test outlet with circuit analyzer, and try timer on another outlet, and with different load. Turn lamp ON, and make sure bulb is good. Try using timer on table lamp with incandescent bulb. 1) 0155671 timer is considered incandescent light bulb timer (tungsten) and not necessarily made for motors loads, TVs, CFLs etc. There are 7 general things to look for if digital timer is not working correctly. Utilitec 0155671 7-day digital programmable timer is sold under different brand names and numbers Read instructions on following link.
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