Digital display stopped working electronic timer

Other RCA VCRs have had problems with flashing timer lights. Those could be fixed with service from an electronics repair person if it doesn't stop even after being unplugged for a while. But, try leaving it unplugged for a few hours. If that doesn't work, the electronics repair might be the way to go, or get a different VCR on eBay or from the local thrift store for pretty cheap.

For sale on several web sites.

You might try contacting a vendor, such as this one on Amazon, to request a copy of the instructions, or ask how to answer your question.

https://www.amazon.co.uk/Electronic-digital-mains-Socket-Display/dp/B002P7RF9A

Electronic digital mains Timer Socket Plug in with LCD Display 12 24 Hour...

Utilitec timers do not have replaceable batteries.
http://waterheatertimer.org/Program-wire-Utilitec-0192773.html
http://waterheatertimer.org/Program-wire-Utilitec-LW60418.html
Older timer designs have batteries, while more modern timers have internal rechargeable battery that is integral with circuit board, and cannot be replaced. The battery holds memories in event of power outage, but current time must be reset if power is out for extended time.
If you have continual problems with failed timers, then have electrician friend run test on your power for spikes, shortages and surge that will cause timers and other non-hardened electronics to fail frequently. Also check for polarity and grounding issues. Also if you have motors, other electronics and/or fluorescent lights on same circuit, this can cause interference.
Also check load limitations, and load on timer to make sure you are not exceeding the timer rating. For example using timer to control motor when timer is rated for non-inductive incandescent loads.
Reset timer using reset button, and then re-program. Buy another timer at Lowes and return defect in new package for refund.
Buy Intermatic ST01C timer. This timer uses CR2 battery, and timer electronics operate separately from electric line. Rated for any load: motors, cfl bulbs, led, incandescent, etc.
http://waterheatertimer.org/ST01C-program.html
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Open following link for Utilitec timer manual:
http://waterheatertimer.org/Program-wire-Utilitec-LW60418.html

This timer should have a back-up capacitor so that programming is kept in memory during power outage.
Power outage is known cause of timer failure. When power turns on, the surge knocks out electronics.
People writing to fixya report electronic timers and electronic water heater controls stop working after power outage. Probably many other electronic devices are affected too, but that would be out of my specialty.
Troubleshoot says 'in case of operational failure, press reset button to clear all settings and restart.'
If timer has failed, buy another from Lowes and return defect in new package.

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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.

Question posted under Intermatic ST01C, but Timer is not 100% identified since ST01C is battery powered, and should not lose programming or stop working with ordinary power outage.
Most digital timers have a battery or capacitor back-up for power outage.
Add a comment with description of timer buttons, or open link below to see most brands of in-wall timer.

Open following link for to identify Intermatic ST01C and Ei600 and download instructions:
http://waterheatertimer.org/ST01C-program.html#battery
ST01C timer has a battery backup. Power outage will NOT cause battery-powered display to fail, but power outage and power surge can cause any electronic timer to fail.
So either the battery went dead, or power surge ruined timer, or you don't have ST01C timer.

If ST01c display is not showing, then replace battery and then reprogram current time -or- manually re-set timer and then reprogram timer.

Tork DTS200a/DZS200a is 2-channel digital timer with 365 day programming and astronomic capability.
2-channel means that timer can control two different circuits with different program schedule applied to each circuit.
http://waterheatertimer.org/pdf/1TORK.DTS200A.DZS200A.INSTALL_OP.pdf
http://waterheatertimer.org/Tork-Digital-timers-and-manuals.html#DTS

1) Timer has 'snap-in non-rechargeable 9-volt lithium battery'
Replace with ordinary 9 volt battery
Battery location is not apparent from image of product, and I don't own this particular timer line.
Add a comment and say where battery is located.

2) Programming is stored indefinitely in memory chip even if battery goes dead.
Current time might have to be reset shown in manual page 3.
Memory can be cleared using procedure outlined in manual starting page 13.

3) If timer function is not restored, then timer might have gone bad.
Contact NSI:
http://www.nsiindustries.com/contact-us.aspx
Many timers and other electronics are not protected from power surge.
Lightning strikes, electrical storms, and simple power outage can knock out electronic timers, and water heaters, water softener, treadmill, etc.
1-event Surge protectors can be installed in main panel to help protect circuits and electronics.

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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.

Check following link to identify timer and download manual:
http://waterheatertimer.org/Woods-timers-and-manuals.html#59377

1) Manual shows 59377 timer is for Tungsten (incandescent)
http://waterheatertimer.org/pdf/Woods-59377.pdf
2) GE faq page shows halogen and incandescent together, so the timer may be rated for halogen. It is unclear.
http://www.gelighting.com/na/home_lighting/ask_us/faq_compact.htm
3) Buy cheap circuit analyzer at home center and check circuit. Whenever electronic timers fail, circuit is suspect. The light fixture may be causing interference. Try timer on different circuit. Try timer on different load.
4) Use mechanical timer instead of digital timer:
http://waterheatertimer.org/Woods-timers-and-manuals.html#59201

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you need to check the main power and see if the power is orrect if so replace the electronic control better known as the clock timer

I just bought a Sportline 241 last week. The instructions are as follows. Note that there are no instructions for setting the 12/24 hour time option. Mine is in 24 hour mode (which is what I wanted), but I do not recall if it arrived that way or if I stumbled onto this mode when setting the time/date or alarm functions.

I hope this helps.


SPORTLINE 241 WALKING ADVANTAGE KEYCHAIN STOPWATCH

FEATURES:
24 hour stopwatch
Time-of-day and calendar
Alarm clock
12/24 hour time option

BATTERY:
Replace with LR41 battery

TO SET TIME AND CALENDAR:
From normal time display, press MODE button three times to enter Set Time/Date Mode. Seconds is automatically selected.
Press SPLIT/RESET button to cycle through minutes, hours, day, month, day of week, seconds.
Press START/STOP SET button to change digits on any of the above (seconds only: resets to 00).
Press and hold START/STOP SET button to advance digits rapidly.
Press MODE button once to return to normal time display.
From normal time display, press and hold START/STOP SET button to see the month, day, and day-of-week.

TO SET ALARM:
From normal time display, press MODE button twice to enter Set Alarm Mode. Hours is automatically selected.
Press SPLIT/RESET button to cycle through minutes and hours.
Press START/STOP SET button to change digits.
Press and hold START/STOP SET button to advance digits rapidly.
Press MODE button to return to normal time display.
From normal time display, press and hold SPLIT/RESET button to see the alarm time setting.

TO ARM/DISARM ALARM SOUND:
From normal time display, press and hold SPLIT/RESET button, then repeatedly press START/STOP SET button to arm/disarm alarm sound.
Alarm will sound when indicator shows in upper right corner.
Release SPLIT/RESET button to return to normal time display.

TO ARM/DISARM HOURLY CHIME SOUND:
From normal time display, press and hold SPLIT/RESET button, then repeatedly press MODE button to arm/disarm hourly chime sound.
Chime will sound when dashes appear along top of display.
Release SPLIT/RESET button to return to normal time display.


STOPWATCH OPERATION - GENERAL:
From normal time display, press MODE button once to reach stopwatch timer display.
After use of any stopwatch feature, press MODE button once to return to normal time display.

START-STOP (TIME-IN/TIME-OUT) TIMING:
With stopwatch timer on display, repeatedly press START/STOP SET button to start or stop the timer. When timer is stopped, press SPLIT/RESET button to reset timer to 0.

SPLIT TIMING:
With stopwatch timer on display, start the timer with START/STOP SET button. Repeatedly press SPLIT/RESET button to split or release the timer. Press START/STOP SET button to stop the timer. Press SPLIT/RESET button to reset timer to 0.

1-2 FAST FINISH:
With stopwatch timer on display, start the timer with START/STOP SET button.
Press SPLIT/RESET button for STOP #1.
Press START/STOP SET button for STOP #2. The stop time for #1 will now be shown.
Press SPLIT/RESET button. The stop time for #2 will now be shown.
Press SPLIT/RESET button to reset the timer to 0.

My oven control works but the digital temperature display is too dim to read.