Sounds like the evaporator coil inside the freezer is icing up and restricting air flow to the fridge. This could be a bad defrost timer or bad defrost heating coil.
I'V JUST HAD THE SAME PROBLEM AND IT WAS THE EVAPORATOR FAN MOTOR . TOOK ME A WHILE TO FIND OUT BUT GOT IT SORTED . EASY FIX THOUGH .I FOUND OUT IF THE COMPRESSOR IS RUNNING THE EVAPORATOR FAN MOTOR SOULD BE RUNNING ALSO, OPEN THE FREEZER DOOR AND HOLD THE LIGHT SWITCH IN YOU SHOULD THEN SEE THE FAN SPIN . IF ITS NOT ITS BROKE. BEWEAR THOUGH AS MINE SPUN AFTER SWITCHING THE SUPPLY OFF FOR 24 HOURS BUT AS SOON AS THE FREEEZER WAS COLD IT STOPPED ALL TOGETHER AGAIN . MOTOR MUST OF BEEN BREAKING DOWN AT A CERTAIN TEMP!
Unless it has a water pipe plumbed into it then the water is melting ice or condensation, it's supposed to do this. You need to put a tray or some paper under it.
Make sure the coils are very clean under or on back of appliance. I had this same problem just last week. If that helps correct the problem please let me know Simon. How old is it? Good luck and have fun
Freezer/fridgeleakingwater/icefrozenin fridgeand or freezer, or leaks on floor
Usually due to CONDENSATION due to bad door seals or a plugged evaporator drain line? Can use a softflexabletubing and very hot water to clean it out. Bad door seals usually need replacement, but u can use a blow dryer and something to pry it closer to the door wall while blowing hot air on to it. To create a seal, to test for bad door seals place a dollar bill in between the door and wall of fridge where it closes. Then slide out the dollar bill with door closed. It should offer some resistance and not be easy to pull out.
Fix any gaps in the door seal.Pack out the seal underneath the areas where the door seal has the gaps. This can be done with a small strip of weather stripping, as shown here, or a bit of tightly rolled up paper under the door seal. Alternatively, you can heat the door seal up with a hair dryer to fix the gaps. This softens the door seal and allows you to stretch it.
Most all fridges have a drain. Look inside your fridge for a "V" shaped channel with a small hole. This hole leads to a tube and a small pan which sits on top of your refrigerator's compressor. The defrost cycle causes water to run into the channel, down the tube, and then it generally evaporates with the heat of the hot condenser/compressor.
However, if that tube is clogged with food crumbs,particles , debris etc,you will have to clear it to get back to a normal mode of operation. A toothpick,pipecleaner, straw or a cotton bud can often do the trick.Another trick one can use is to connect a copper tube wirewith one end going intothe drain hole thenattachthe other end to the heater wrap it around heater a few times. That will take care of the drain problemwhen it comes to ice build up but not food build up.
Even a frost free freezer will still ice up at times in the areas away from the heateddefrost area and the drain linecan freeze. This icing causes the pipe work to the compressor to ice over or sweat and cause a puddle. Or if the drainage has frozen over, it will need to be de-iced.( usually the line is under the freezer bottom plate covering. Towards the back of the unit) And there is another inside the fridge area also.
Give the freezer a good overnight defrost until it's totally clear of ice in addition to making sure the drain is clear to the pan at the back and then restart the freezer.
God is so good: so this is why I give free advice so please thank him not me.
OTHER THINGS TO CHECK ARE THE DEFROST TERMINATOR AND THE HEATER ELEMENT FOR COBNTINUITY.
http://www.appliancerepair.net/refrigerator-repair-1.html
https://www.youtube.com/watch?v=HHr7bCO_IiA unclog drain hole
https://www.youtube.com/watch?v=H_DKNtgd5vI
This could be the fan or the switch that controls that defrost cycle. The only way to tell is to use a volt meter to see if there is electric current to the fan motor. IF there is current, replace the fan.
