Hi, I have your hydrofarm dual outlet digital

http://waterheatertimer.org/Woods-timers-and-manuals.html#HB
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#hb88
Manuals for the Intermatic are located on links above.
If your timer does not show, then attach photo of product

If you have specific question about setting the timer, add a comment March 2015

Gene

Water Heater Timers Save Money

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Reset timer and reprogram, being careful to overlaps or conflicts in programming.
Is this new timer or timer that stopped working?
Which timer do you have?
Does timer have replaceable battery? Or internal rechargeable battery?
Copy following link for possible identification of product and manual.
http://waterheatertimer.org/Woods-timers-and-manuals.html#seven

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link to identify same-similar timer and download possible manual:
http://waterheatertimer.org/Woods-timers-and-manuals.html#six

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link:
http://waterheatertimer.org/How-to-set-timers.html

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link:
http://waterheatertimer.org/How-to-set-timers.html
http://waterheatertimer.org/Woods-timers-and-manuals.html#seven

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

You posted next to a photo showing hydrofarm analog timer with segments located on dial face.
Open following link for general look at setting analog timers.
http://waterheatertimer.org/How-to-set-timers.html

Analog timers have a minimum set time of 15 minutes because the trippers-or-pins-or-segments are made certain width.
If you want 1 minute ON and 5 minutes OFF, you need digital timer.
Most digital timers have minimum set time of 1 minute.
But digital timers have limited number of set points per day unless you get into heavy-duty Intermatic timer like the ET70115 timer with 100 or so set points.

If you want 1 minute on and then 5 minutes off, and want to repeat that same cycle over and over throughout the day and night, you would need 240 set points.
Or check out 120V adjustable cycle timers.
https://www.grainger.com/Grainger/cycle-timers/timers/electrical/ecatalog/N-8hbZ1z0q55s

If you want the cycle timer to operate certain hours only, then put ordinary 24-hour timer between the cycle timer and the load.

Add a comment for more help.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Add a comment and post a photo of your timer so we can have close look at your do-it-yourself problem:
http://www.fixya.com/support/r6568559-post_photograph_fixya_questions_answers

Dial has 48 segments.
Each segment represents 1/2 hour in 24 hour day.
Pull up 32 segments and leave 16 segments down.
Manually rotate dial and watch when light turns on-off.
http://waterheatertimer.org/Woods-timers-and-manuals.html#Pins-tabs

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

Question posted under image of analog plug-in-type timer
Open following link for instructions how to set timer by experimenting with features:
http://waterheatertimer.org/How-to-set-timers.html

The timer dial should turn lights on and off.
The lamp switch has to be turned on for the timer to work.
It sounds odd that the timer will turn ON the lights but not turn them OFF.
Make sure your pins are pushed all the way into place.

With older timers, the pins wear out or the tripper lever wears out, and this could cause the problem you describe.

Make sure your timmer is set to "AUTO" mode and that your programed times/weekdays are good, resetting the timmer should solve your issue i've had it before, these timmers do this to me once and a while.

Make sure you dont have an "O" on the left of your time as this randomises off/on times by 2 to 32 mins. Press "HOUR" and "MINUTES" at the same time to toggle this option.

the timers manual can be found here:
Eco Plus Digital Timer