I have a bosch fridge freezer model kgu3220 gb. It is ten years old. For the last few days, the fridge isn't cooling but the freezer works fine. The temperature on control panel is stuck on 11 degrees. I have tried turning the fridge on and off, as well as resetting the fridge temperature selector. Any ideas what the problem could be?

Looks like this model is now out of date and I wouldn't trust your service guy. Any service agent will know whether the door switch, thermal sensor or control panel is faulty by simply testing them. I would not have to fit complete parts to isolate the faulty part.
Sounds like he doesn't know how to or wants the job of fixing it.
Try an independant repair service, local one man repair shops tend to give an excellent service.
If you want Currys do a good range of fridge freezers; https://www.currys.co.uk/search?q=Liebherr+fridge-freezer+model+CPEL4813&search-button=&lang=en_GB

https://www.currys.co.uk/appliances/refrigeration/fridge-freezers/bosch?searchTerm=Bosch%20fridge%20freezer

https://www.currys.co.uk/appliances/refrigeration/fridge-freezers/hoover?searchTerm=hoover%20fridge%20freezer

To show just one retailer. There are many more out there. Try and buy locally if you can, you will get a better service I find.

I bought a Philips (Whirlpool) years ago and after 3 years, out of warranty, it packed up. The aluminium heat exchanger started leaking. Not worth repairing.
I now purchase Hoover. They has a 10 year parts warranty.
They are all 15 tears old now.
One gets what one pays for I suppose.

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator and why it is not cooling

Refrigeratornot Cooling or Fridge not Cooling

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Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

Hi,

Check out these tips...they can help you figure out what is going wrong withyour refrigerator

Refrigeratornot Cooling or Fridge not Cooling

How to Defrost Refrigerator DefrostTimer Problem

WaterRunning in refrigerator from Freezer

Refrigeratoror Freezer not Cooling or Getting Cold
heatman101

Hi,

Check out these tips...they can help you figure out what is going wrong with your refrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold

heatman101

Hi,

Check out these tips...they can help you figure out whats going wrong with yourrefrigerator and why it is not cooling

Refrigerator not Cooling or Fridge not Cooling

How to Defrost Refrigerator Defrost Timer Problem

Water Running in refrigerator from Freezer

Refrigerator or Freezer not Cooling or Getting Cold
heatman101

Well nobody came up with any other options so I guess it's just defrost a "nonfrosting" fridge every three months or so, just like the old days.
No progress here then in spite of advances? in technology.

If, the fresh food section is 34- 38 degrees, then the freezer should be cold enough to keep ice cream solid. All of the cooling capability comes from the freezer section. I, personally, would not waste time or money on a ten year old box. Ten years ago it cost $1000, so, the outlay is $100 per year. Dump the old refrigerator and get a new one.

If freezer is icing up, you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow.
You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model

hi.
If the evaporator fan isn't working, that's probably the problem. Test here>http://www.acmehowto.com/howto/appliance/refrigerator/refrigerator.php

thank u
rate me!!

There is a fan motor that blows the cold from the freezer to the refrigerator side. Listen for the inside fan when the compressor is running, and look to see if an adjustable air passage has become shut.