I have an Intertek Model #YLT-23 and when I set it on ANY time period, except ON, the unit flashes (on and off) the spotlight I have attached. I wanted to set on Dusk to Dawn, but do not want the flashing. Any suggestions?

SOURCE: How to set utilitech wall timer for dusk/dawn

The Utilitec 0192773 timer has astro dusk-to-dawn functions.

The manual is very unclear at the exact point you need it to say how to set dusk-to-dawn.

The following page has the manual, with explanation how to find the astro dawn-to-dusk setting
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html

When you are programming the timer, press TIME button and hours start flashing.
Press the +/- button ... the trick is to keep pushing the +/- button until it finally gets to astro, and the sun-moon symbol shows on display.
When the sun-moon symbol shows, the display also shows AM.
Press the +/- again and PM show.

So if you want Program1 to turn lights ON at dusk (PM), then your display needs to show: 1 ON PM sun-moon.
To continue setting astro, do not set hours, just press PROG button.
Then repeat the steps above until: 1 OFF AM sun-moon show on display.

SOURCE: Will the HB51R have to

The dawn to dusk feature is activated by photoelectric eye that senses when it gets dark.
If you put timer in a dark room, it will turn ON ... let's say to operate Christmas tree after you leave a room for the evening.
But if room stays dark, the timer will not sense when to turn off unless you also set timer to turn off 1-9 hours after ON.
That being said, a Christmas tree might make too much light for the timer's photoelectric eye.
Make sure photoelectric eye is turned away from direct light.

SOURCE: how to program the STO1C timer for on time and off

Yes the ST01C manual is confusing at the exact point you are stuck at.
Open following page to see step by step plus illustrations that show the confusing part of manual:
http://waterheatertimer.org/ST01C-program.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

SOURCE: Can I use outdoor timer

If outdoor timer is programmable, and does not turn ON automatically at dusk, then timer can be used indoors.
If outdoor timer is activated by photo eye, and turns ON automatically at dusk, then it cannot be used indoors, because the timer turns ON when it senses darkness.
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#HB51

SOURCE: why does light blink off and on when set at dusk/dawn

If lights blink on-off, then red wire is connected where blue wire should be.
Red wire should be capped, and not used when timer is used for single pole operation.
OR connect red wire and blue wire together if you want Dawn-to-dusk operation instead of dusk-to-dawn
Open following link and scroll down to bottom for wiring diagrams.
http://waterheatertimer.org/ST01C-program.html

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