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Ups failure my ups goes off immediately when the power is switched off,what might be the problem?

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  • IT aid
    IT aid May 11, 2010

    hi which type of ups you got ??

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  • 49 Answers

Dead battery or battery unpluged inside of unit? mine uses contactors inside to switch power, i can imagine if it is cycled a lot these could burn up.

Posted on Sep 30, 2008

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Posted on Jan 02, 2017

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Error code 26


You have a clog some where
F26
Drain pump triac failure This error code is displayed when the main electronic controller fails to detect the triac that controls the outlet drain pump during the wash cycle.
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Switching Off your TV in standby mode & power failure


When there is power failure, immediately switch off the switch supplying power to your TV. After restoration of power, there are incoming surges on the line which can damage your TV. It is also a good idea to switch off in standby mode. It consumes some energy & we may not know when there is power failure.<br /><br />sonsunny

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DELL E1705 model. When connecting AC adapter, even before pressing power button, led in power adapter goes off immediately. Why ? The power adapter is OK. When connected with Battery, no switch-on.


Since the system is not working ion both battery and the adaptor it could be a faulty motherboard.. Call dell @18006249896 if you are in warranty.. Contact local tech if thr\e system is out of warranty....

Sep 14, 2010 | Dell Inspiron E1705 Notebook

1 Answer

Monitor goes black immediately after waking from sleep, at the same time the power light changes from green to yellow. Image is just visible on black screen when viewed with a torch, After a wait of about...


Common problem in this model is bad DC filter caps, that will be the first place to look.
If you are going to DIY and have proper tools and know safety precaution then please read on:
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), blown fuses; poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Sep 01, 2010 | HP Pavilion F1523 15" LCD Monitor

1 Answer

My Princeton monitor will show the normal screen for about one second when I push the power button, but then immediately goes off (screen is black). If I push the power button off, and then back on it does...


It more likely to have the same failure as other Princeton monitors here.
Most common failure in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed PRINCETON monitors to get some ideas what goes wrong: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

Apr 11, 2010 | Princeton Digital VL1916 19" LCD Monitor

1 Answer

Panasonic AG-DS550 VCR shuts itself down about 2 seconds after switched on. No error code appears in that brief interval. Toggling the power switch immediately is ineffective, but after waiting a while,...


This is a typical symptom of a power supply failure. There are some self-checks performed at power-up that are not completing correctly. Were there any symptoms before the complete failure? Often, the units start to behave strangely before complete shutdown. The power supply failure is tied to defective capacitors in most cases. These supplies are what are called "switch-mode" supplies and must oscillate to work. Defective caps will either not provide the kikcker to start the oscillation or prevent the oscillation completely. While there are other causes, this is the most common. AG units are professional decks and should be serviced by authorized service centers.

Hope this helps,
Dan

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Amp lights up (display) and then fails to switch


You need to replace the power amp transistor or mosfet. Bring to electronic technician for repair.

Jul 24, 2009 | Sony STR-DE998 7.1 Channels Receiver

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Front panel Ac Switch failing to start computer.


Try these steps.
If Power supply light does not turn on (or no power supply LED)
Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure:
NOTE: If the Power Supply fan spins when the PC is turned on but the light does not come on, it is possible the LED is defective. If this is the case, use the section Power supply light comes on or flashes .
1. Disconnect everything from the PC, including the power cord.
2. With the power cord disconnected, press the power button on the front of the computer. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
3. Replace the power cord with another power cord, like the one used by the monitor.
Test to see if the computer can turn on. If not, continue using these steps.
4. Ensure that the voltage selector switch is on the correct setting, 115V for North America.
5. With the power cord removed, flip the red voltage selector switch to the opposite position, wait about five seconds, and then switch the red voltage selector switch back to its original location.
This ensures that the voltage switch is engaged and set correctly for your country/region.
6. Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
7. Plug a lamp into the same outlet to see if the wall outlet has power. Try the computer in a different outlet in order to eliminate the outlet as a possible source of the issue. Test both to see if the wall outlets have power.
8. Remove all extension cords, power strips, surge protectors and any converters that remove ground. Plug the power cable directly to the wall outlet. Test for power. If this fixes the issue, find the device that is causing the issue and do not use it.
9. Use a vacuum cleaner to remove the build-up of dust from the power supply fan vent holes. Make sure that the PC is turned off and that the power cord is plugged into a grounded outlet. Only use the end of the vacuum hose near the outside of the fan entrance.
Plug in the power cord and test to see if the computer can turn on. If not, continue using these steps.
10. If all of the above steps have been tried and the power supply light remains off, use the steps in the next section, use the next section Power supply light comes on or flashes , to reseat the cables and check the power switch connector.

Jan 11, 2009 | Compaq Presario SR1000T (568657) PC...

2 Answers

LG LCD monitor goes in power saving mode


That means theres no signal coming from the PC. either the PC is not booting up or the VGA coard is faulty.

Nov 25, 2008 | LG L1915S 19" LCD Monitor

1 Answer

The PDA turn off and it will turn back on immediately later ......


I get much the same, but it comes and goes. For a week or two it will behave itself, then goes pop for a month or three! Do you find if you have external power (cradle or USB) that it will switch off? I also find that if I switch it off from battery power, it will switch itself back on, but then the power switch is ineffective for 6 or 7 seconds. Then you can switch it off, only to repeat the whole excercise again (and again, and again, and again...)

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