Fridge And Freezer Forum

[beninstp]

I've recently aquired a Beko frost free fridge freezer which is about 2 1/2 years old. The problem is that the freezer it too cold (around -35) while the fridge takes a very long time to get back down to the 5 degrees economy setting after it's warmed up a bit (after loading lots of food from the supermarket for example).

I've read around the forum a bit and have tried taking the cover off the back of the freezer and defrosting but it hasn't made any difference. As far as I can tell, the only way that the unit regulates the freezer temperature independently of the fridge is via the fan at the back of the freezer. This seems to be on most of the time and so my suspicion is that it is the culprit, causing the freezer to be too cold and meaning that the coolant has very little heat absorption capacity left by the time it gets up to the fridge.

So, my question is, could an over-active fan be causing these symptoms and if so, how could it be remedied?

Many thanks in advance,

Ben

[beninstp]

An update on this:

The fridge was taking up to a day to get from 9 degrees to 5! All the time the compressor and fridge fan was runing, and the freezer varying between -32 and -35 degrees, which is far too cold.

I decided to try disconnecting the freezer fan to see what would happen. Now the fridge is fine, gets down to the required temperature very quickly. The freezer as expected has suffered slightly, with temperatures of around -23 at the bottom which is fine, and -13 at the top which is a bit too warm.

So it does seem that the fan is a contributory factor in the problem. I can live without the fan if need be but would rather have it working properly if possible. I don't want to call an engineer because it's not worth it, but am fairly handy with electronics and so am willing to try replacing the temperature sensors in the freezer if anyone thinks these might be at fault.

Please see the following picture of the freezer:

http://img45.imagevenue.com/img.php?image=81199_dP1010699_copy_122_379lo.jpg

There are two temperature sensors, a black one and a white one as indicated by the arrows. The white one measures a resistance of 16 ohms when the freezer has been left to defrost for a while. The black one is completely closed circuit i.e 0 ohms, maybe some sort of temperature switch?

Would anyone be able to simply advise whether or not either of these items might be at fault in this case, and if so, where I might be able to obtain replacements?

Many thanks

Ben

[eastlmark]

Thermistors in refrigeration are a comon failure and given their relative low cost are always worth a try. Often though it is the control pcb at fault. Must admit to not being at all familliar with Beko models though.
The Black one you mention may be a thermal fuse incase the defrost heaters stay on too long and there may be other ones hidden in the insulation and often non replaceable. Take care back there though as mains voltage and melting ice are not a nice combination so unplug first.

[beninstp]

Many thanks for the advice. I will of course be very careful and wouldn't dream of taking the cover off before unplugging the mains. Where would a non-trade person like me be best advised to get hold of spare parts for a Beko fridge?

Cheers

Ben