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Re: Everytime the compressor stops there is a loud 'bang'...
When the compressor stops, the movements of the internal components are normally absorbed by the internal spring supports. If a spring breaks, etc., the inner moving part will contact the outer case and give a knocking noise or two when it stops. You can make the compressor (even a new one) do this by giving it a shake. The compressor will most likely run for years this way with no performance problems. It is rather expensive to replace a compressor, (especially for only a noise issue) so most people just live with it or get a new refrig and use their old one as a second refrig in a basement or where ever. Please don't bother to rate this, as anything but a Fix-Ya drops my score.
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Your fridge's compressor motor is suspended inside the compressor housing on three or four springs. These springs are designed to hold the motor load in a vertical position. Transporting a fridge on it's side can stretch or break these springs which can cause a shudder stop condition (the fridge makes a shuddering banging noise everytime the compressor stops and sometimes when it starts).
It's a good idea to let a fridge sit for a bit anytime it is moved. Over night won't hurt but an 8-10 hours is more than enough time some say less.
the internet consensus seems to be that you should limit the amount of time the unit is not upright. And as stated above, leave it upright at least overnight before starting it. Apparently damage can arise from mixing of lubricant and coolant, so damage is more likely in an older unit with worn seals.
Where is the noise coming from? The front, back, top, or bottom? Is it a bump, thump, bang, clang, or rattle? Does the sound happen at regular intervals or randomly? It could be the compressor bushings going bad, causing the compressor to bang around.
two seperate issues,the springs within the compressor housing that support the piston have broken,can only be resolved by replacing compressor....in regards to the ice build up,you have a defrost problem.defrost issues can usually be resolved for about 120-160.00 through a qualified servicer
The compressor is that black casing you see at the bottom of your refrigerator - inside this sealed case is the motor assembly which stits on 3 or 4 springs that act like a cushion - you have a little gap at the bottom where the lubricating oil is present. Your springs have likely worn out and when the compressor shuts off the assembly is banging against the rigid casing make that loud "klonk" or bang noise. It IS normal for compressor to make some faint "tick-tick-tick...tick.....tick" when shutting off, but loud banging, bell sounds, etc, means the assembly is banging on the case from the inside - you can indeed live with the noise, your compressor will function normally, probably for months, or even years - it can also keep wearing out and one day the noise might get very loud (like a very high humming noise) - There is NOTHING that can be fixed, you either pay $400+ to change the compressor or buy a new refrigerator - If you DO replace a compressor usually the replacement will be noisier - Keep a thermostat inside your refrigerator at all time to make sure your compressor is still keeping your refrigerator and freezer cool.
the noise your hearing is a weak spring in the compressor. what happens is the compressor is a motor inside of a steel shell that spins at high rpm's when the unit shuts down and as the compressor starts to stop the weak spring is allowing the compressor motor to bang against the steel shell. around here we actually call these "Bangers". anyway the fix is obviously to replace the compressor. but considering the age of the unit you may want to move it to the garage and buy a new one for the kitchen.
Btw in my experience this does not interfere with normal operation of the unit it is just annoying. If I can be of further assistance please ask thanks Peyton
there are 2 fan's in the uint one is located by the compressor itself, and the second is loacted in freezer compartment behind hte back wall, it is possible and fairly common that the bearing on one or the other has gone bad causing your noise issue. if it soulnds as if hte noise is coming from the compressor itself, then your out of luck no repairing that item just a replacement and problalby not worth the cost
I think the banging means the compressor is shot. (more like a load "clunk"). I had the same noise on a dehumifier.) I dont' think replacing a compressor is a DIY, and doubt it is economically efficient. But I leave that to the specialists to comment on. Check Craig's List in your area - you can get a good deal for a few hundred bucks.
Also, the "clanging noices" is probably the fan blades for the air circulator that moves cold air from the freezer to refrig compartment. Check the online manual for your model (exploded parts view) to see where it is located and if it is readily accessible by taking out a few screws inside the refrigerator. Might be more than one fan - open the door when it happens and see if you can locate where the noice is coming from. This is a plausible DIY - I did it only my old fridge - replacement parts were cheap. But you might even be able to just reallign the fan blades so they don't clang.
some popping noise is normal but if it is banging when it stops it needs a new compressor.what has happened is one or more motor mount is broken or weak it could run like this for months or years but it is annoying! if its warranty they have to replace it.