Charles, I have dual Liebherr units (refidgerator and freezer/biofresh). They are built-in. The fridge side is building up a deep layer of frost not more than a month or so after I emptied it and defrosted the inside. On the frrezer side, the ice seems to be melting just a bit so it forms a clump, this has been on0going for a week or so. I'm sure that it neeeds a good cleaning and am trying to pull it out from it's cubby, but I can't get the back rollers to lower. Turning the ling bolt one way seems to unscrew it from the back end, turning it the other way it get's tight and I assume that that is the raising position. Your thoughts.
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check the cold control thermostat with a meter for both OHMS and volts ( VOLTS is a live test with fridge plugged in so be careful) It must show 110 volts. An open or thermostat that reads infinity will not allow the proper cooling and defrosting cycles to operate and may in fact stop anything from happening as if there is no power to the unit?
ALSO CHECK THE AIR FLOW VENT SYSTEM At times it can get stuck to far closed or open. Some units feature a digital electric adjusting vent system while others are manually set. Check for any ice build up or other obstruction in the vent damper, see if u can manually open or close it. Some times when u have the settings set to the highest it closes off one area while allowing to much cold air flow to the other area!
its warm damp air getting into the fridge causing the frosting if it builds up to much the fridge will find it hard to keep things coold down and you will need to "de-frost" it,,to do this rap all your food up in a blanket to keep it cool them switch off the fridge and put a tub of boiling water in side it leave the door open the frost will soon fall away,,wip out the fridge with "by carb" and switch it back on for an hour or so before you put your cold food back in it
there is only 2 things if you dont have an ice maker inside your door is not sealing all the way around or the drain is cloged with ice and everytime the ref goes into defrost the water leak into the fzr unplug for 2 days that shoud fix it
Try these solutions in these order:
1. Switch off the fridge and leave the door open overnight. Switch it back on in the morning.
Explanation: The sensor inside the fridge gets frozen and cannot control the temperature properly.
2. Switch off the fridge. Unplug it. At the back of the fridge (behind the unit, not inside) there is a large grid. Clean it with a hoover thoroughly. Open the fridge. Dry the back of the fridge if wet (inside the fridge). If frosted wait for it to defrost and then dry it. Plug in the fridge. Switch the fridge back on. This one worked for me.
Explanation: The dust in the grid deprives the fridge from cooling down and the unit can't control the temperature in the fridge section.
3. Switch off the fridge. -Unplug it. Empty it. Turn it upside down. Plug it in. Switch it on for 24 hours. Switch it off. Unplug, return to normal and switch on.
Explanation: This has to do with the pressure of the gas inside the compressor. I have not tried it but this advice as given to me by a qualified electrician when I commented the (in)famous F2 problem in Liebherr fridge/freezers.
Hope it helps. Regards. Albert
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