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Techdesk, Service Engineer
Category: Appliance
Satisfied Customers: 16409
Experience:  Whitegoods engineer working for a multibranded national company in the UK
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Samsung RS21NGRS Fridge/FReezer purchased 12/05/2007 Freezer

Customer Question

Samsung RS21NGRS Fridge/FReezer purchased 12/05/2007 Freezer work OK.
The fridge has a build up of ice behind the bottom vegetable draws.
The fridge is cool at the bottom but not at the top.
The temperature control indicates 14 c.
When I press the buttons to change it to 3c it stays at that reading for a few seconds and then returns to 14 c.
What should I do?
Submitted: 4 years ago.
Category: Appliance
Expert:  Techdesk replied 4 years ago.


This is a very common fault on your appliance.

The defrost cicuit isn't working properly, this is the reason for the icing up.


Normally, a new thermal cut fuse, defrost sensor and evaporator cover (with fan) sorts it out.


You may also find the defrost heater or gutter heater has failed.


You would need to test the heaters to see if they've failed.


If they have, they'll need replacing.


There is a full kit, including heaters, available on Ebay for around £88


The complete kit, fitted should sort out any problem you have on the defrost circuit.


Alternatively, if you don't want to try the diy route, British Gas have an offer on at the moment.

£125 inclusive of parts and labour.

If they can't fix it, there's no charge.

I believe they reduce the price if you also put your appliances on contract.


Click here for the British Gas offer


Check out the heaters on your machine first if you go the diy route.

You'll need to do a full defrost of the machine first so you can get the panels off to check the components.



Hope this helps

Get back to me if you need more help or information on this fault.