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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.
Pull the fridge freezer out and see if the loud knocking sound is coming from the compressor. It's that black round thing at the bottom in the back. If it is, it's time to go shopping.
Oh yea, lifters can be replaced , best if you replace cam an lifters together ! Loud knocking is not usually associated with lifters , they usually make a ticking noise ! Knocking noise is most usually in the bottom of the motor , main or rod bearings . most of the time rod bearings !
Pull the fridge away from the wall and inspect the compressor. Your description sounds like the compressor is hitting something. It is rubber mounted and usually can be pushed away from whatever it is hitting.You do not want to jamb something to stop the noise, as the compressor needs to move freely. Many compressors shake during start up and shutdown, and this is considered normal. Abnormal if the compressor hits something during this movement.
The knocking noise when cuts off , is a compressor internal motor support spring , broken . This does not mean the compressor is bad , only noisy for the rest of the compressor life , but should be covered under the 5 yr warranty . The gurgling sound is the refrigerant being pumped thru the system . The buzzing could be from the compressor also . My suggestion , would be to call a factory warranty company , to see if they can replace the compressor under warranty .
I also have a new Whirlpool Gold fridge (bottom freezer with French doors) and it was making a knocking sound. The knocking sound would start when the fridge kicks in and starts running to cool, and would last for about a minute or less and be a slow knock.
I called Whirpool customer service since it is new and on warranty. They sent out a technician and he said the knocking is from gas/air built up in the copper tubing for the freezer because the copper tubing is too cold, and when the fridge first turns on it forces the air through, making the knocking sound.
His "fix" was to adjust the copper tubing so that it is closer to the heat of the motor/compressor and heat of another copper line so that the cooler line stays warm so the air/gas doesn't build up. His fix worked slightly, but the fridge is still knocking, just not as bad and not as long - it knocks fast for about 5 to 10 seconds instead of a minute.
Going to call customer service again soon and see where to go from here.
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