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Intermittent power in utility mode.

UMAX 500 VA, momentary power off while in utility mode. Green light remain ON. Battery replaced but fault persists. Battery mode OK. Suspecting AC to DC converter stage. Can I disconnect the battery and test in utility mode? sugestion please.

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How to repair tecno t340 micro

Posted on Nov 25, 2013

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

Jeap
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SOURCE: SMART UPS APC 3000

let the ups be turned on just charging the batteries, u can have the voltage but the batteries still not fully charged. good luck

Posted on Feb 27, 2007

  • 28 Answers

SOURCE: green light flashes with a constant buzzing sound

It sounds like you need a new battery. If the APC is more than 3 years old, that is likely the problem. You can get a new battery from http://www.batteryinternational.com/apc-backups-es-be500u-ups-battery-ups-batteries-f2.html

Posted on Jun 23, 2009

jvpacoin
  • 91 Answers

SOURCE: apc ups 650va no power when connctd to ac/bt wd power in on batry

Check the relay Circuit. the relay switch must be faulty

Posted on Aug 14, 2009

  • 7 Answers

SOURCE: 3000 VA UPS Service Manaul of Fiskars Power Systems Make

I have the same PCB on my Deltec PRR2200i. I at least know a few things about the circuit now. I had 11 transistors explode on mine and am replacing them now. Sadly I have not managed to track down a circuit diagram.

Posted on Mar 30, 2010

epettingill
  • 175 Answers

SOURCE: After battery replacement, upon power

Try and push and hold the on button for about 3 sec. This will start a manual battery test. If only three of the five battery led illuminate allow the ups to recharge the batteries for 24 hours. Battery light flashing means internal battery source not available. Check battery connection, completely power down and reboot UPS

Posted on Sep 08, 2011

Testimonial: "Thanks, Battery source was not available - internal fuses were blown. Replaced fuses and unit is now functioning fine."

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Sony kdl-32l504 turns on and then immedietly turns off. Power light turns green when plugged in and tv makes a click and turns on. Once turned on, the tv stays on for about 5 secs then the screen turns...


For more details about this type of fault, visit the site "Electro-help". Type in the site name, either to Google or Yahoo search box, and click serch. Click open the site with same mane, with a hypen in between words. It is an electronic equipments' repair help site.

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Error light in my apc smart ups sc 1500va ups


1. Four beeps every 30seconds (On Battery LED will be illuminated)
This alarm indicates that the Battery PowerSupplied outlets are now supplying battery power as opposed to power from theutility. If the UPS determines that the input utility power is unsafe for yourcomputer equipment, the UPS will switch to battery power.
Note: Ifthe power disturbance is brief, you may only hear one or two beeps.

2. Continuous Beeping (On Battery LED will beilluminated)
This alarm indicates that a Low Batterycondition has been reached and that the UPS will soon shutdown. Once the UPStransfers to On Battery operation, it can only stay on battery for a limitedamount of time. The UPS will sound this alarm about two minutes before thebatteries are totally exhausted. Once exhausted, the UPS will shutdown and turnoff its output power to your equipment. If you hear this tone you shouldimmediately shutdown your computer to prevent data loss or corruption.

3. Continuous Beeps for 30 seconds (BackUPS OFFICE 250 and 280 ONLY)
This alarm indicates the unit has detected anOverload condition after it has performed a self-test during start-up.

4. Continuous Two-Tone Beep
This alarm indicates a severe Overload wasdetected while the unit was on-battery operation. This tone will continue tosound until the unit shuts down.

5. Continuous Tone (On Battery LED will beflashing)
This alarm indicates that the battery-poweredoutlets are overloaded.

6. Continuous Tone (On Line and On BatteryLEDs flashing) Back UPS OFFICE 350,400, and 500 ONLY
This alarm indicates that an internal UPS faulthas occurred.

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1 Answer

My inverter (500 va) (battery based electric generator for power backup) keeps on charging batteries even when the charging light goes off making the inverter, wires and battery very hot.


This a possible failure of the voltage detection circuit in the inverter main board and requires the fault be identified by checking the voltage/current feed/limiter to the battery.
Once when the battery voltage has reached the threshold set up the charging should stop and then the circuit will analyse the voltage on the board to trigger the charging to be put ON.
This can be a failure of the detection circuit and if not checked can damage the battery.

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Alternating green and orange light with constant beeps


Verify that the usb to ups cable is pluggled in properly. Also you may not have a good ground. Disconnect the ups and plug it in another outlet to test with nothing else plugged into it, to see if it still beeps. You can also try and upgrade the ups software from apc.com

Jun 25, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...

1 Answer

The unit beeps


I am getting these directly from the user manual (available here: http://www.apcmedia.com/salestools/ASTE-6Z7VAQ_R3_EN.pdf)

Issue: On Battery - UPS is supplying battery power to the load connected to the Battery outlets.

Visual Indication: Power On LED - ON (off during beep)

Audible Indication: Beeping 4 times every 30 seconds

Stops When: UPS transfers back to Power On operation, or when UPS is turned off.

- OR -

Issue: Sleep Mode - During On Battery operation the battery power has been completely exhausted and the UPS is waiting for utility
power to return to normal.

Visual Indication: None

Audible Indication: Beeping once every 4 seconds

Stops When: Utility power is restored, or if utility power is not
restored within 32 seconds, or the UPS is turned off.


All other issues are CONSTANT tones, which you did not specify, or there are no audible tones associated with it.

Apr 07, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...

1 Answer

No picture on the panel


You could very well have a "T CON" board that is bad. This is the small board that the LDVS Cable goes to from the Video board and is mounted towards the top center on the back of the LCD Panel. It also could be caused by one of the Lamps failing or even the Ballast. Replacing the 'T CON" would be the next step to figure out which it is. If it is not the "T CON", the LCD Panel is the problem. The Ballast and Lamps all are included with the LCD Panel. Unfortunately, the cost of the LCD Panel makes it not worth repairing if it needs to be replaced.
I hope this helps,
Skyassoc

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UMAX 2100XL IS CONNECTED, 2 G LIGHTS FLASHING WITH NO PRINTS


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