Question about NexxTech 400W Power Inverter (2218400) UPS System

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Fan has not turned on

Is fan only supposed to come on if inverter overheats?

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I think the fan should work all the time. There might be and option in the software to turn on the fan only if the system overheats.

Posted on Jan 30, 2009

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1 Answer

What is the type and parameters of the internal cooling fan


The type of fan can be very different between two similar UPS.
The easiest way is to open the UPS and watch for.
Some UPS requires exactly the same fan, and if they take too little or too much current UPS think that it is wrong on the fan and alarms!

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The fans are not working. Would like to have part number to the fans.


The fan replacement is not hard, but it is fiddly.
You need to pull out the battery case to remove DC power. To do this - front display cover off by pushing up the plastic tabs inside the bottom front of the cover and tapping the top of the cover to release the top tabs. Undo the screws on the metal plate which hold the battery in place. Take off the UPS outer metal case cover using a Torx screwdriver. Undo the 4 screws on the back holding the steel fan cover. Using needlenose pliers or a very small screwdriver, carefully remove the fan connector from the back PCB board. This connector is fragile and tends to break easily. Pull out the fan. Note the location of the 2 screws on the inside fan cover. I use a NMB-MAT Model 3610KL-04W-B50 12 volt DC replacement fan that I order in specially from any wholesale electronics shop as you want the maximum CFM out of the fan. You need to cut the existing fan leads and solder the existing connector leads to the new fan lead, using heat shrink tubing. The connector goes back in only one way- note the dimple on the side. The leads can be a little longer on your completed fan assembly. The fan manufacturer's label should face the back of the UPS.

This solution is for a PW9120-1500. I assume your UPS is PW9120-3000 or larger. Check the model of the existing fans.

Feb 24, 2011 | Powerware 9120 UPS System

2 Answers

Need to replace the fan on a powerware 9120T 1500VA


The fan replacement is not hard, but it is fiddly.
You need to pull out the battery case to remove DC power. To do this - front display cover off by pushing up the plastic tabs inside the bottom front of the and tapping the top of the cover to release the top tabs. Take off the metal case cover using a Torx screwdriver. Undo the 4 screws on the back holding the steel fan cover. Using needlenose pliers or a very small screwdriver, carefully remove the fan connector from the the back PCB board. This connector is fragile and tends to break easily. Pull out the fan. Note the locaton of the 2 screws on the inside fan cover. I use a NMB-MAT Model 3610KL-04W-B50 12 volt DC replacement fan that I order in specially from any wholesale electronics shop as you want the maximum CFM out of the fan. You need to cut the existing fan leads and solder the existing connector leads to the new fan lead, using heat shrink tubing. The connector goes back in only one way- note the dimple on the side. The leads can be a little longer on your completed fan assembly. The fan maufacturer's label should face the back of the UPS.

Jan 20, 2011 | Powerware 9120 UPS System

1 Answer

Overtemp


The cooling fan is probably not working. Unit will overheat. Check the fan to see if it run continuously with no scraping noise with the UPS turned "ON". If the fan does not run, open the case and replace the fan.

Jan 19, 2010 | Powerware 9120 UPS System

2 Answers

Our computer shuts and turns itself on repeatedly with out any warnings.


Is it old or screwed up? the fan that cools the CPU (processor) could be broken and it just gets really hot and it turns off the make sure your computer is not fryed take it to some compouter guy that knows what theyre doing and have then check on it

Dec 14, 2009 | Opti (es550c) UPS System

2 Answers

My APC bx900r is making a squealing noise with the red light flashing after a few minutes after being turned on. The brochure says this means it is overloaded, but nothing is plugged in to it. the...


My suggestion would be to replace the battery to make sure the battery is not shorting out the UPS. If you can't do that, take out the battery and then replug the UPS back in.

If you still get the same results then that means the main board inside of the ups system is bad and you would need to get a new UPS system.

Nov 26, 2009 | APC (BE500U-WEB) (BE500UWEB) UPS System

1 Answer

Dead appearing ups/inverter


keep on your main switch. off all the lights fan and other electrical items, let that inverter get charge first

Jun 18, 2009 | APC Back-UPS CS 500VA UPS System

1 Answer

9120 fan stopped working


On Services can assist you in the repair of this UPS fan and any other critical power service parts/repairs. We have nationwide service, please contact us if you are still looking for assistance.

http://www.gowithon.com

Jun 12, 2009 | Powerware 9120 UPS System

2 Answers

Battery back up supply


it is possible that the fuse for the input of power is broken or bad

Feb 11, 2009 | Energizer ER-HM650 UPS System

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