We have a small Daewoo fridge my husband uses in the garage for his beer and it is not getting cold enough It is about 135 litres and even on maximum the freezer part has no ice in it

If the ambient temperature matches the temperature achieved through refrigeration, why would the refrigerator run? Is your beer cold?

Many residential refrigerator / freezers are designed to work at temperature considerably above above freezing. Most modern refrigerator / freezer have a single electric thermostat - located in the fresh food compartment. This lone thermostat will control the compressor to keep the fridge (fresh food) section at the desired temperature (usually between 34 - 38 degrees F). The freezer will get colder regardless of how cold it is already whenever the fridge thermostat turns the compressor on.

Now that you see how the thermostat works, let's look at what happens when the fridge is placed in an unheated space - like a garage. In winter time, the temperature can drop considerably below 38 degrees. If the outdoor temperature remains cold enough, for long enough - it will affect the thermostat in the fridge. The temperature inside the fridge could drop below 38 degrees, preventing the thermostat from telling the compressor to turn on. Meanwhile, the temperature in the freezer compartment slowly rises from the normal -10 to 0 F degrees. It will continue to rise until it is the same temperature as the fresh food compartment or until the thermostat in the fresh food compartment tells the compressor to turn on again. This means the freezer contents will thaw.

If the temperature in the garage is even in the 40 to 50 degree range, the loss of cold in the fridge may not happen often enough to keep the compressor coming on often enough to keep some freezer items frozen solid - such as ice cream. Remember, water freezes at 32 degrees F, other products may require lower temperatures to remain frozen, and could thaw at 28 or other temperature.

Good luck!

NOTE: This
is a multi-solution answer since I don't have all the tech from your question to pinpoint your problem
But the solution is in here generically, if you read and study the solutions very,very carefully.

Sounds like the cold control has stuck . Unplug the two wires from the cold control and plug them together. Turn one wire over and plug it into the other. away from the cold control.
The cold control is the knob in the ref that turns it on and off and has numbers on it. (Thermostat)
If it runs then that cold control (Thernostat) is the problem.
If that doesn't work DO THIS:
The relay on the compressor may need replaced
A relay starts the compressor with a higher voltage and then quickly kicks out
Thats what is happening with yours
Its best for a tech to replace The relay but you can do it
Take your model number to your Local Appliance parts store they will have a diagram
showing you how to install the relay. Its called a hard start relay
also try hooking the two wires together on the cold control to route around the cold control.

If you need more help GO HERE:

http://www.applianceaid.com/procedures.html

Thank you for using fixya
Leo Ponder
PLEASE VOTE FOR ME IF THIS WAS HELPFUL

There could be two reasons for this
The thermostat is not working properly - replace the thermostat
There is a small refrigerant leak and the fridge cannot get cold enough - you will need a technician to find the leak and regas the fridge

Are you sure it is 135? If the freezer is cold but the fridge is warm, most likely is the damper door problem. (Basically, it's a door controlled by the main board, get cold air from freezer and close when the fridge is cold enough)

I have a problem with my daewoo fridge and freezer cannot get the right settings it is digital

how does any tradesman(person) know how much its gonna cost before they even look at it.....
i would suggest you call a small,family run,electrical shop.
they have a reputation to uphold......

Since refrigerators were designed to run in your 72° kitchen, when you put a fridge outside, where its colder than normal operating REFRIGERATOR temperatures, i.e. 35-40°F, because that ambient temp is colder than fridge temp, the thermostat in the fridge section reads it as normal temperature, and does not turn unit on. it does not read what the freezer temp is. You have a couple of choices: bring the unit inside, heat your garage, or only use it for pop and beer in the summer. You can reply here or send me a question from my website: www.FixMyFridge.net

Just had the same problem on my Freezerator, the compressor would cycle on for a few seconds and then off for about 5-10 minutes. No cooling. Replaced the overload sw and the start capacitor and system running cold and tru. Beer cold again, 0deg in freezer. Parts are available on the web, P/n 2169373 for the capacitor and 213615000 for the switch and housing...may be different # for the sw....PTM

THE CURCUIT BOARD IS NOT SENDING A SIGNAL TO YOUR MOTOR WHICH ENABLES YOUR MOTOR TO KEEP THE VALUBLE CONTENTS IN YOUR FRIDGE COLD...(BEER) EVERY MANS FAVOURITE HOBBY...CHECK YOUR CIRCUIT BOARD FOR CORROSION OR DAMAGE...HOPE THIS HELPS...IF SO SEND ME A COLD ONE