Fan works for about ten minutes then begins to slow down
The fan works for about ten minutes on any speed, then begins to slow down until it stops. The compressor still works fine if its on. If its on fan mode it still does the same thing and when it stops, it makes a humming noise. There is nothing in the way of the fan to stop it or obstruct it from movement. This is the second one I have and both have and do the same. Please advise if the motor maybe going out is there a place that I can simply buy the motor????
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Bad fan motor. Multi-speed motors have a set of windings for each speed. Your high speed is bad so the only solution is to replace the complete motor. When motors are going bad they will over heat and kick out on the heat safety. As it cools back down it will start again for a short time again until it gets hot again.
You did not post anything about make and model. This is kind of a guess.
My laptop has "battery saving" setting that operate the fan based on temperature. When I start up, the fan comes on and the computer checks itself, Then the fan slows down. Later when the laptop warms up, the fan speeds up. See if you have some power management scheme set that makes the fan run like this before you take it to the shop.
You have 2 windings in the motor that create a magnetic field. A winding is simply a coil of wire an they do not touch. when applying the voltage (turning on the fan) the windings create the mag. field causing the rotor to turn, which then of course turns the fan blade. When these windings get weak it causes them to heat up due to the resistance in the circuit and you there for loose ur mag. field... Or if the rotor starts getting restricted it will also heat up the windings an cause the fan to stop.. Time for a new venta hood....
The fan is only supposed to come on when there is excess heat .. in normal driving conditions it doesn't start. When you start your car in the morning the fan won't come on because the engine is cold.
With a hot engine - and it depends how hot the engine is - the fan will only kick in to prevent overheating. In heavy slow moving traffic or a traffic jam, the fan will kick in if needed.
The air flow through the radiator is usually sufficient -in normal driving conditions - to cool the engine.
When you park up and the car has a hot engine, the fan will kick in. This is perfectly normal. It is caused by a surge of hot coolant triggering the fan sensor. Perfectly normal.
The fan then should cut out after a while .. maybe 2-3 minutes at the most. If the fan runs continuously that suggests a fault in the temperature sensor switch.
Next time - wait by the car and see how long it takes for the fan to quit after you have parked up. It should stop of its own accord after a couple of minutes.
If the fan cuts off after a short while, and your battery is becoming drained, that's probably a battery or alternator fault.
Remember: when you start the car the fan won't kick in at idle speed because the engine is COLD, and there is no reason for the fan to start up ..
The fan WILL kick in for a couple of minutes after you have parked the vehicle and the engine is hot
It could be caused by the fan bearings failing (normally sleeve types that get gummy), switch failing (does speed setting make any difference?) or finally connector problems caused by corrosion.
If the speed selection resistor was failing, it would affect lower speeds but not the highest speed since it is then bypassed.
Operating the switch that selects fan speed rather roughly could clean the contacts in the switch and help cure the problem if the switch is at fault.
If the fan motor slows down regardless of speed setting, it is likely the motor (bearings) at fault which would likely require replacement of the fan.
Access to the fan may be a real pain-in-the-. . . well, you know.
Hello, The fan does run continuously on this projector however it should be running very very slow when the projector has completed it's lamp cool down routine. The reason for this is that a portion of the switching power supply remains energized (running) when the projector is at rest. But as I mentioned it should run very slow in this state. If it remains running full blast then most likely the fan speed control chip is shorted which can cause fail 2 ways, either the fan 1. runs full speed or 2. remains stalled (then the projector will go over-temp and shut itself down) I hope this answers you question.
Mine was making a moaning, whistling noise coming from just above the ice maker. It happened when the fan speed changed. I learned on this site that the motherboard was probably defective.
Rather than go thru GE, we found a new one online for 66 bucks. I replaced it in about ten minutes and it's all fixed. Poor materials on the original, but this site was very helpful.