Yes I can, you see there can be two things. 1, it can be there isn't enought solicone on your processor. or 2 it could be your fan that went out, fans usually go out like that. My fan just went out too. I recomend going to a computer store and ordering a new fan
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With the ones that I have seen the ups units have a relay that routes the 110v thru the unit when it has 110v power applied. If you are saying it has no output on batteries only then you may be right about the inverter. SAFELY I would just verify on the board that the DC input from the batteries is correct to test your install. It seems there may be a RS232 DB-9 connection on them with available software for communication with them, if it does I would try it.
you may need to replace the batteries -- turn the UPS around and take the screws off from the compartment and remoive the battery -- call a battery distributor and ask them to sell you the same type of battery.
if this helped, please reply with a positive repsonse..
From what info you gave me. It sounds to me like it is either too small for the load, or it is in a confined space where heat is building up (UPS has to be outside of a desk office, etc.) or the rectifier is going bad and heating up. I would check to see if it does it by hooking up a small load to it like a radio or something, and if it is in the open, not overloaded then rectifier is bad,I see it alot. I am a Master Electrician and have worked on many UPSs'. Remember that if you keep a UPS loaded to it's full potential (which you shouldn't do) it will get hot. The rule is to only load it up to 80% of it's rating and you will be fine. To find out how many amps it will handle you simply devide the VA of the UPS by the supply voltage. Example: 1200va UPS supplied by 120v. is good for 10 amps. 1200/120 = 12 amps, then it is wise to add 25% more to the watts or amps when sizing them. Also, if it has a cooling fan make sure it isn't blocked by lint and is working, if it isn't working it will get hot fast. Good luck!
Alagator clips on (+) (-) and on the resister. If the battery can not hold the charge after one minute above 12V DC, but drops very quickly that battery is due to be replaced. Very simple test and cost hardly nothing.
it is probably speed regulated, high temp speeds up fan. then low speed or off when not hot.if it does not run at all, fan or sensor defective. hope this helps you, good luck! glen. and it would be ok if it did run all the time, as it is better than not at all.