My fan will not turn on - Heating & Cooling

If the fan is barely turning, it could be the fan is bad. This fan blows air across a 2 coils.

Probably needs a new receiver.

Stuck blower relay

The fan gets it's electricity from a fuse or breaker that probably also controls some other outlets or light sockets.

Check for possible air flow restriction to the radiatior. Anything stuck in the cooling fins to cause a blockage. Also check the cooling fan to see if it is working properly. To check the fan (while engine is cold) turn the blades on fan, if the blades do not turn freely then the fan is at fault.Grasp the fan on both sides and rock the fan checking for any excessive bearing play (wobble). To check the fan after the truck has warmed up, turn the ignition off andd disconnect negative wire from battery. Turn the fan by hand, some resistance should be felt. If the fan turnes easily, replace the fan. Hope this will help you.

To turn the fan off, press the "fan key" until it says "auto". This will turn the fan off. When the programs scheduled, changes, the fan will go on again. You have to repeat the fan to "auto" each time the schedule changes.

The coolant is working well, because the engine stays cool while driving. The problem is the fan relay, fuse, or the fan itself. Do you have AC? If so, turn it on and you should have instant running of the fan. The normal operation of the fan is: the engine thermal sensor tells the computer that it is getting hot which in turn tells the fan relay to turn on and that is supposed to turn on the fan itself. The fuse protects the high current wire to the fan. Try to turn the fan blades by hand--if stuck or very hard to turn, replace the fan motor. If you can't find the fan relay in the fuse compartment, it may be a solid-state device that is located near the fan motor. Chase the fan wiring back to the relay. Hope this helps!

You will need to replace the cooling fan motor. Remove it and check the numbers on the fan and then do an online search for the motor. you can also contact a website called the repairclinic.

I would check the radiator fan in the car for looseness. If the fan wobbles or moves , Then change out the radiator fan. The radiator fan and motor come as one piece. There is a fan relay also should be replaced.
When turning the key only half way to make the dash fan work, indicates that the dash fan is okay.
The dash fan may make a whining or high pitch noise when engage. Then I would change it out because an internal bearing to the fan is going out.

Good luck

From looking at the owner's manual, it looks like the vent fan is only supposed to come on when the internal temperature of the microwave gets too high OR when you press the VENT FAN pad. Here are a couple of fan-related excerpts from the owner's manual, which can be found here: http://products.geappliances.com/ProdContent/Dispatcher?REQUEST=SKUOBJECTS&DOCUMENT=Use%20and%20Care%20Manual&SKU=JVM1840BD (or the better URL here: http://tinyurl.com/yn7r6g) Automatic Fan An automatic fan feature protects the microwave from too much heat rising from the cooktop below it. It automatically turns on if it senses too much heat. If you have turned the fan on, you may find that you cannot turn it off. The fan will automatically turn off when the internal parts are cool. It may stay on for 30 minutes or more after the cooktop and microwave controls are turned off. - Vent Fan The vent fan removes steam and other vapors from surface cooking. Press VENT FAN once for high fan speed, twice for medium fan speed, a third time for low faw speed, or a fourth time to turn the fan off. Press the VENT FAN BOOST pad for extra fan speed. - Hope this helps.