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The ventilation fan of my power inverter wont shut off

The fan keep working even it is nothing conected

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This is hard without knowing the specifics, but these fans can be wired to be on all the time, or controlled by the thermo-switch, or even electrically controlled by a logic board. You may have a stuck Thermo-switch or a bad logic board, since to fail shorted is the standard failure mode (for a Triac).

Posted on Nov 29, 2008


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My laptop wont power on, lights come on briefly then shut off. no fan noises or anything

Check the ram memory and se if they are plugged well and working ..leave it work with one at the time if you have more than one module of ram ..and see if this is the issue ..
from what you say it is doing ..sounds to me like a cpu fault .and more likely a fan failure...cause it wants to start but it shuts down as a protection in the moment it detects the fan not working ..So open it up and check the fan ..or replace it ...If this will not solve ..replace the cpu

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Onkyo AV Receiver TX-SR503 While sleeping with earphones connected, the receiver shut down and the standby light blinked. I unplugged the power cord, reconnected power and the receiver shut down...

Have you provided adequate ventilation?
May be your receiver is running hot and when there is loud volume it is obviously getting overloaded. There are no fans inside 674, the only way to provide good ventilation is to keep the top of receiver clear for atleast 6 to 8 inches.

Hope that helps.....

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HP Pavilion a1010n. Compuiter fan keeps going on and off. Even when computer is not being actively used. Comes on with full power and keeps going (loudly) for a minute or two, sometimes longer, then...

The fan triggers on ONLY when the temperature of the PROCESSOR heat sink goes beyond the settings of the thermistor fixed on it. This is to prevent any damage on the processor and so if there is any malfunction of the PC in its OS or the drivers , then it can be reset, Other wise check the ventillation ports of the PC cabin and clean them. A good ventillation must allow the fan to rest but if the fan works and shuts at times it is only because th processor works and heats. Clean the system, teh hard disk and files and defragment the system.

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Does the Vector Power Inverter VEC040 have an internal fan?

No they do not have any internal cooling devices. they rely on ventilation alone.
I will suggest that you read up on reviews for this item if you are thinking of buying one.
They have not gotten great reviews.

May 04, 2011 | Vector VEC040 70-Watt Power Inverter 40

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I have a vector VEC051C 3000 Watt inverter, the vent fans run continously without load, can it be modified to cool only when, the temperature increases..

If it has a 12 volt fan, you can replace it with one designed for computers that has a built-in thermistor. These fans will automatically increase or decrease their RPM depending on the ambient temperature. I have seen them in 70,80,120mm sizes. As long as the inverter is on, you do not want the fan to ever be completely off because even without load some heat is generated and can build up inside if no ventilation is present. Although the fan will never completely turn off, this might be the easiest solution if your goal is to make the inverter quieter (and use less energy) when not in use.

Oct 20, 2010 | Vector 3000 Watt Power Inverter

1 Answer

The tv keeps shutting off

My tv did that same thing but it was't because of ventilation. It was because it wasn't level. Once it was perfectly level, I left it off for an hour unplugged before I plugged back in and turned on. It never did it again. I guess some of the components have to stay level inside for it to work. Mine would mimic poor ventilation with the lights, almost like overheating. Tech came out and diagnosed it with nothing wrong. So I'm not saying this is your fix, but it couldn't hurt to try. If it's not this, then it could be the fan, or maybe something to do with the power board. Good luck.

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I have a samsung ht-tx75 and it keeps shutting down every 10 minutes saying protection.the fan is working

Protection is very likely caused by an over heat condition, even with the fan working if the receiver is in a very enclosed place that warms up and is not ventilated it will cause the problem. The solution is to provide more ventilation so that the receiver can cool itself properly.

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My Wife's computer started doing this for about a week or two, then all it did was keep trying to boot, nothing on screen, all lights come on. Seems there is an issue with certain models of compaqs and Hp laptops. If yougo to their website and chat with a rep, you may find you have one of these models they are giving a one time free fix, even if out of warranty.
They have ours right now.

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The ventilator fan causes the water to evaporate from the drain pan. There may also be a heater element to do it as well. Without it nothing is making the water evaporate so it is overflowning. Might be the fan motor or the switch that is a problem.

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Graphics Card


Looks like heat related problem on two possible areas.
1. The LCD monitor itself, probably a cold solder or overheated capacitor either in the power supply or inverter circuits; or
2. The video card heatsink isn't getting enough ventilation. If it's got a small blower fan, it might be stuck, burned out or simply clogged with dust.

You would need to open the units for a look and see.

Hope this be of some help/idea. Post back how things went or should you need additional information.

Good luck and kind regards.

Oct 24, 2007 | Computers & Internet

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