I think it's called the evaporator fan, but not sure about that. It's the fan that's down on the bottom in the back, it cools the cylindrical coils down there.
Well, it's not operating. It gets cool in the freezer and coolish in the fridge, but obviously it's not operating correctly. I first noticed something was seriously amiss when the ice cubes were melting down the front and my ice cream was liquid.
I know it's not the fan motor itself that's bad. Because I've replaced it. I wish I had typed this before dropping the $40 for a new one.
I'm assuming it's thermostatically controlled, and it's a sensor thats gone out. What would really be helpful here is a schematic or someone that "knows something" about the sensors in this specific model.
I'm hoping against hope that it's not the main board, since that's gonna cost me around $90 or more. Please, can't it just be a really simple to get to sensor that I can buy for five bucks and plug the ****** in? heh. Fat chance, right?
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Re: Model HSS25IFMDWW "bottom" Fan is not operating.
You are correct in assuming that it is the evap fan. its purpose is to dissipate heat captured from the freon as it leaves the compressor. it could be that your defrost timer is faulty, but very hard to diagnose online.
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HI, I'll be able to help you out but I want to go over some stuff that way you'll have a better understanding of your machine so if I have a question it will easier for you to answer. Lets start out with the fan. The fan your hearing inside the machine is called an evaporator fan. Its located at the top of the machine directly over the evaporator coils, which are behind the back wall, that freon goes through in its gas state to cool the machine. The evaporator coild get cold and the fans job is to pull air from the bottom of the machine, across the coils and intio the refrigerator itself and therefor cooling the whole thing. The fan does not extract air out at all. The suction sound you hear is caused from the machine design and the differential in temperature in and out of the machine. The fan will runs non-stop with only 2 exceptions. First being the door getting opened, which opens the switch, I think on that model is located naer the bottom next to the light switch. If the fan is running after you open the door your door switch is stuck or broken and needs to be fixed, but that wouldnt' tmake the temp raise. The second is when the thermostat registers that its cold enough it shuts the fan off. From the age and what your saying is going on I would first check the condersor coils, located behind the removable grate and see if they are really dirty. That would cause the temp to raise airfloe is blocked and the compressor gets too hot. While down there check the fan to see if its running as that too will cause the machine to get hot if not. Ihe coils are clean and the fan is running call a tech because you probably have a freon leak, which is the likely candidate.
The fan has a limit control wired in series that shuts the fan down until the coil temperature reaches 25*F. this prevents the fan from blowing warm around after defrost. There is also a switch which is placed for the door to close. Either one may be defective. Worst case is the freezer is not pulling down temperature wise.
Check the air damper if it opens as you adjust the temperature control. If yes then check the freezer fan motor. First, disconnect the unit from the power source
then remove the freezer shelving.
Loosen the two top screws and remove the two bottom
evaporator cover mounting screws then grasp the bottom of the cover then carefully pull it
forward and down to clear the upper flange.
Disconnect the evaporator fan motor leads. The wire
leads are self-locking and it is important to squeeze the clip before
pulling the leads off the terminals.
Remove the evaporator fan motor assembly and place
it on a work surface. Connect
the motor terminals to a service cord and plug the cord into the 120
VAC power source. If the motor fails to operate, it is defective and must be replaced.
In some cases, a faulty thermostat may not be the cause of a warm refrigerator or freezer. A warm box may also be caused by a defective fan, a blocked fan, or broken or bent fan blades. If the blades are jammed, try to free them. If they're bent, straighten them with pliers. If this doesn't solve the problem, call a professional service person.
On some refrigerators, the door switch operates the evaporator fan. If the fan seems to be malfunctioning, the door switch could be faulty. Test the switch as detailed in the last page, and replace it if necessary.
the evaporator fan motor will not run when you have the door open - you have to press the door switch in to make it run.
But if you are doing this and the fan is still not running then this explains the evaporator ice up problem.
You will have to take it apart (make sure that the power is off) and just unplug the evap fan (usually just plugged in)
Usually these fans are a standard type of fan and you will be able to get one from a electical wholesaler or just call samsung and get one from them - make sure you have the model number with you when you order it though.