Refrigerator Vibration

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rp2813

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Yesterday I changed out the office fridge and now have a 1988 Emerson 3.0 cf size (woodgrain door) which is a perfect fit, with top surface the exact same height as the desk so I've effectively added nearly 2 sq ft of usable space.  We weren't using the previous fridge at full capacity, so I wanted something smaller and more efficient.

 

What's interesting about the Emerson is that it has a clean back with no exposed condenser.  I glanced inside the opening at bottom rear and couldn't find one.  Odd.  It does not have a "forced draft" condenser fan.

 

The evaporator is basically a flat plate that curves up a few inches at the rear.  There's a flip-up panel in front of it to create a freezing compartment.  The small compressor operates quietly, but cycles are spaced closely together.  Three or four minutes on, five minutes off.  I'm thinking this could be a result of a closely calibrated thermostat.

 

That's not a huge issue except for the fact that there is a vibration running through the cabinet when the fridge is running.  Not a rattle or a buzz, but a low level resonating that can be heard/sensed out in the hallway and into the next room.  With door open, it's reduced.  Close the door and it's more noticeable.  Apply pressure against the front of the door, and it quiets down, kind of like its acting as a speaker of sorts.  Nothing like this happened when I had it on the concrete floor of the garage for testing and cleaning.

 

The fridge isn't up against the wall or the desk and is on a carpeted surface but I have thick heavy cardboard down to keep it from sinking into the carpet pile.  This worked fine with the larger '85 GE fridge it replaced.   I'm wondering if a sheet of plywood is a better option.

 

Any suggestions for a remedy?  I like the size of this fridge, and defrosting will be easy.  I used to have to pull the GE out of its corner so the door could open fully to extract the drip tray.  No need to do that with the Emerson since it's not as wide, and the door opens 90+ degrees. 

 

It was hard to tell the GE was even running.  I'd like to create that same situation with this Emerson if possible.
 
Could be the compressor is rattling

have you tried to press on the compressor itself to see if that quietens the vibration? If it does roll some foam and insert it between the metal parts,
If that makes no difference you could try standing it on a thick rubber mat

Austin
 
Thanks, I will give that a try.  It does seem like it could be an issue with the compressor isolators, but I'm puzzled about why the vibration is less pronounced on a hard surface like concrete.
 
Well, after its first full day of use, I think this fridge has bigger issues.  It's cycling way too frequently and it's annoying.  I think it's using too much energy for only 3 cf.   The cold control is set right in the middle range.  The GE it replaced had much longer down time and far less run time.

 

I don't think it's worth trying to open up the cold control and make adjustments -- if that would even help -- nor am I sure about how to do it.
 

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