Fridge - frosting up question

Soldato
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Having move house we have inherited a freestanding Smeg Fridge Freezer which I think is only about 12-18 months old. However, we have noticed that in operation the top half of the fridge at the back ices up 1-2cm thick at all settings, but bizarrely the bottom half at the back is completely clear of ice including the drain at the bottom.

I've tried changing the thermostat settings and checked the door seal and can't find any obvious gaps letting lots of air in at the top. Any thoughts on what might be causing this?
 
I was going to suggest door seals as this happened to my old fridge freezer. Fridge would get ice and freezer was a solid block of ice (lol). But as you say you have checked the seals.
 
Not sure how to explain this as we had an engineer out to rectify it.
You may have a panel at the rear of the fridge (inside but may not be evident on first inspection) that has a filter/drain/funnel into a larger reservoir which cycles around. If this gets a blockage (could be ice build up) then you need to clear it.
Download a manual if you can, ours is a Samsung American style fridge freezer
 
Anything pushed up against the back wall of the fridge? My girlfriend has a habit of buying way too much chilled stuff and ramming it all into the fridge - this means the bags around stuff like vegetables press against the drainage holes on the back wall and the whole lot ices up really quickly.
 
It will ice up if it is an automatic defrost fridge, as others have said, make sure nothing touches the back and blocks the drain hole.
 
I will double check tonight the back tonight. However, I don't think anything is touching the back and the drain hole at the bottom is clear when I checked at the weekend.

The ice forms and completely covers the top half, with an almost perfect horizontal cut off half way down. Part of me thinks the fridge elements are broken at the bottom and so the bottom half is not cooling and so the top is working overtime.
 
on frost free fridges they are supposed to get covered in frost? it's the condensation freezing and then the heater element defrosts it and the water runs out a tiny hole and to the back of the fridge where there's a metal collecting plate above the compressor.

the water than evaporates as the compressor turns on and heats the collection plate


it shouldn't be covered in ice/frost all the time though only straight after the fridge has been working

if the moisture didn't collect on the backwall then your fridge wouldn't be frost free


check if water is reaching the collection plate. maybe the tube leading to it has a blockage, push a straw or something down the hole in the back of the fridge and pull it back out.
 
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