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When turn on my HP computer the fan s run at high rate of speed and it will not load up it must be turned off and on for 1 hr. before it will load.

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I think dere is problem in ur cpu fan.....
u should contact ur service provider n tell him d problem.....
it is nt a bigger problem......i think it will need to change...

Posted on Jun 18, 2008


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Posted on Jan 02, 2017


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Ml150 g3 high speed fan , i can not turn it off

Can u confirm that is it giving some error massage in startup screen and install smart array and check that windows is coming or not, If windows not running then installed OS in your server

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Replacing a heaters blower motor

The indoor blower motor is powered by 115 volts or 230 volts, either way it wires the same.
Every motor be it a single speed or multiple speed will get the 2 legs or power,
Line 1 and Line 2 or L1 and L2 to make it easy.
Common always gets a leg all to itself, you cannot run both legs of power to the speeds as the speeds are on the Run winding, that is a direct short, and you cant run a leg to Start or it will turn backwards! This is how we unlock compressor's that get stuck!
1 leg or power ALWAYS goes to Common.
The remaining leg of power, say it is L2, it goes to the speed desired or if a single speed motor, it can go to the terminal on the Run capacitor that is wired to the Run winding, A Run capacitors terminals are Run and Start.
Note the capacitors leads coming from the motor are both brown, 1 has a white stripe
the capacitors leads are obvious in that respect as well as being the only 2 leads that have female type ends that are for sliding over the run capacitors terminals, it does not matter which lead goes to what terminal as long as both get their own.
The remaining leg of power we are calling L2 will be going to the speeds desired,
Cool uses High while Heat uses Low speed, High speed is controlled by a fan relay or fan board on the high speed terminal or cool.
While the low speed is controlled via temperature delay, time delay or a fan board on the low speed terminal or heat.
There is no need to get an exact replacement motor, as long as the shaft diameter, frame size, rotation, voltage & HP rating equal or better,
(you can go bigger HP, never smaller) you will be ok.
Some universal or trip saver motors have bushings for various shaft sizes, and an ability to reverse rotation by inverting a plugged set of leads. Belly bands are used for most applications so even if your OEM motor has built in motor mounts there is a belly band that can be used to replace that motor perhaps cheaper if not faster, some OEM motors can be days away from being available

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I have a ford escape 4X4 2005 AT transmission, after 1 hr driving the vehicle i got the O/D OFF , after and turn it off and turn it back on there was no light , and after 1 hr again the light is on...

- if odometer indicates any speed when running , the speed sensor is ok

- check all electrical plugs to transmission
- check the oil strainer

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PC runs great until you power completely off. The it will take several tries of power on attempts. It will not start with the CPU fan coming on high speed. Must keep trying until low speed is heard. I...

Sounds like a problem with the power supply based on what you've written. Could be motherboard too, but Power Supply is usually the culprit.

I'd swap it out to test ;)

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I am installing a intilitech 7 day in wall timer replacing an old mechanical 12 hr timer. The load is a 1/4hp 2 speed attic fan. The original wiring had hot in hot out of the timer. This has hot in, hot...

Utilitec does not make a 2 speed timer.

1) One possible option is a timer with NO and NC terminals like Intermatic-Grasslin FM1 series rated 1 HP. This example timer would have the motor running continually on either one speed or the other.

2) Inside a 2-speed motor are two separate windings.
Windings are loops of copper wire that cause the fan motor to rotate.
For 2-speed, each winding has to be connected to a different 'switch.'
For example, like a ceiling fan. You pull the chain once, and electricity flows to one winding. Pull the chain again, and the switch sends electricity to another winding.

3) The following wiring diagram shows ordinary on-off timer connected to 2-speed switch: This is the basic plan for Broan Nutone 2-speed switch timer, which might be the product you are replacing

4) Nutone makes a 2-speed whole house fan timer.

5) And open following Broan Nutone manual that show the two spped timer wiring

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1 Answer

Kenmore over the stove microwave,model # 721.62629200,only low speed fan works on the keypad,no high speed fan.

The fan has a setting for high speed, low, and off. Fan only running at low speed.This indicates problem towards. 1) the fan motor. 2) The loose fan wiring. 3) The fan switch. IN the unit there is a motor for fan.If the motor gets weak or short. The fan will run but only at low speed.Because at high speed the motor will require more power to run.In this case motor needs to be checked and replaced. The other possibility is the fan wiring.There are two wires going from fan to motor and two going from motor to power board.If any of this wire is got loose or getting short then this will stop the fan to run in high speed.In this case the wires needs to be checked and reconnected properly. In the unit there is a switch internally.When you select the fan to high speed mode the switch goes up. when you select the fan to low speed mode the switch turns down.But if the switch is faulty or got worn out.Then it will not move properly up/down.In this case switch needs to be replaced.IN some brand models the High speed and low speed are directly controlled from front control panel.There is no switch in that models.In that case the control panel needs to be checked and replaced. Thanks. keep updated for any more can rate this solution and show your appreciation.

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Loud noise when turning on my computer

When the machine boots up the fans are running at full speed, and after a moment the bios loads teh power management that lowers the fans to the needed speeds. If you tax your computer the fans will speed up to compensate for the heat produced and will get louder then as well...
The larger and more powerful your CPU and Video Card the louder the startup will be. Some of the newest quad core computers with high dollar vido cards will sound like a jet taking off when starting up, I know mine does!

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Try turning it off then wait for about 5 mins then turn it back on. If that does not fix it call your Internet Provider.

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