Question about Liebert UPStation GXT 2U GXT2-1500RT120 UPS System

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My PFC IGBT is blown again and again. I had tryed 60Amp and 1200Vots IGBTS. I also changed it OPto,s as well SG3525, and SG3854 with lm358N and c40660B. But problem did not reslove yet. now can you send actual parts value or schematic with test points Please answer me on my email

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Check the rectifier diodes (4 x 1N4148) after the current transformer feeding the PFC circuit. Could also be PFC inductor problem.

Posted on Jul 15, 2010

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Fixya is not associated with any manufacturer. So unless someone here happens to have the schematic you would have to get that from Liebert/Emerson.

Unless the igbt's are being overloaded then the usual suspect area is the driver/switching. Usually that section fails and they latch on and POP.

Posted on May 01, 2010

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Posted on Jan 02, 2017

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1 Answer

The 60amp fuse blown on a Getz 1.4 diesel. Why, what does it affect (appears to be temp gauge and interior light), where can i look for a fault?

60Amp is too much just for what you described. It probably runs a lot of other stuff, steering pump etc.
If you clip a 100Watt headlamp bulb across the blown fuse, as you switch things on, the light will glow very bright when you have a heavy load or potential short circuit.

Mar 18, 2017 | Cars & Trucks

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Apc smart ups rt 10000 internal fault, what to look for?

you should check the inverter and the charger boards as well.
Mainly IGBTs and drivers (IGBT drivers).
better locate the fault and replace the defective board

Aug 21, 2014 | APC Smart-UPS RT 10000VA - UPS ( external...

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46RV535U 46 in. HDTV LCD TV where is the fuse

There are several fuses on the power supply board.

Usually the one that fails is not the main AC line fuse (which is close to the AC line input), but the PFC fuse located, you guessed it, next to the PFC regulator IC on the board.

When the PFC fuse is blown (measuring open) you also need to replace the PFC IC and possibly other components on the board. Most of the time the PFC is sufficient though.

Here's a link for repair service for the board:

Also search there for the TV model, we may have repair kits or exchange services available!

Hope this helps!

Jul 30, 2012 | Toshiba Regza 46RV535U 46 in. LCD HDTV

2 Answers

Need a power supply for a pmh5000 and install directions

These are delivered with a power supply. If yours has failed, LIKELY there are other problems. I have repaired several supplies and can coach you through which parts to replace. Often the failure originates with a shorted MOSFET in one of the amplifier channels, usually the rearmost one. Getting parts for these is really hard as FullCompass is the Behringer parts distributor. The SPS1000 supply takes out about $25 of parts when they go. The hardest parts to replace are the IGBT transistors as the heat sinks are hard to remove to get the screws out of the transistors. All the repair parts are available using five different online sources.

Sep 18, 2011 | Behringer Europower Pmp5000 Powered Mixer...

1 Answer

Dear sir, We have 1 ups having problum with

Very complicated these items. I have not been able to repair even apparently simple faults, manufacturers such as emerson/leibert do not release cct diagrams, so very difficult to fix as there are many different sections (pfc,rectifier,charger,upconverter,bypass,inverter) of the circuit all interconnected with a micro processor monitoring and controllling the whole thing. You have to be really lucky to sort out any problem particulary one with blown components.

Hope this helps

Thanks for using FixYa


Aug 12, 2010 | Liebert UPStation GXT 2U GXT2-1500RT120...

3 Answers

I have model 91811 chicago electric inverter. worked fine last time I used it,,, now it won't work. fan comes on, as well as power light, but will not arc.

Can you hear it "humming" inside. If not check fuses / wiring connections inside case. Failin gthat sounds like transformer has failed.

Feb 24, 2010 | Inverter 220 Volt Tig Arc Welder

1 Answer

Battery disconneted problem

there is a fuse blown inside the ups open the ups and replace the fuse in series with battery if it blows again the check igbt or mosfet

Feb 19, 2010 | Powerware 9120 UPS System

1 Answer

My UPS Powerware 9120 6kva. At inverter section. what is the component type for Q213,Q214,Q215 and Q216, i means type and it part number. Can U forward to me the Service Manual for that UPS. TQ

no but I can tell you that for old ups mosfets are used and for new ups IGBT (insulated gate bipolar transistor )are used the IGBTs are not available on shops you have to take help of company

Feb 18, 2010 | Powerware 9120 UPS System

1 Answer

Horizontal Output transistor

IGBTs do not work well at high frequencies. They are not very linear, either. Even if it works, you'll likely wind up with a compressed and distorted picture.

Just put in an equivalent output transistor and call it a day.



Feb 04, 2009 | Samsung HCL4715W 47" Rear Projection...

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