Too much air in Samsung RS21DCNS?

I have a 7 year old Samsung RS21DCNS which has been playing up for some time. It had the evapourator in the fridge replaced 18 months ago and worked for about 6 months then started having problems with the freezer going into a defrost cycle every 3 months. Now if the whole thing is fully defrosted and switched back on, it will work for approximately a week before the fridge is fully iced up and the freezer goes into defrost and stays that way until the ice had all been manually defrosted.

I have had 2 engineers out, the first did not know what was wrong becauase the diagnostics say everything is working fine. The second said the evapourator in the fridge was the problem (even though it was replaced last year) and that the fact that there was a split in the back wall of the fridge letting air in that was making the problem worse. The whole thing was defrosted, the evapourator replaced, silicon sealant put in the split and within a week it went wrong again. He returned and replaced the thermal fuse and some sensors and again it was not fixed.

He has come back again and said it must be because there is still air getting into the fridge somewhere and that it can't be repaired and that we will have to scrap it.

I am not pleased with this daignosis especially after spending the money on parts etc and think the engineer just doesn't know what is causing it, there are no open holes and the holes that where there were pretty small anyway. The other interesting thing is that the fridge appears to be staying at the correct temperature (despite the ice) , it is only the freezer that is not cooling down correctly.

Does anyone have a view on this?

Thank you
Colin

check in test mode if it showing any error codes,also check thermal fuse defrost heater and senor and fan running inside the freezer









www.airkooldomestics.co.uk

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Thank you,

Test mode shows no error codes. The thermal fuse has been replaced, will check the defrost heater/sensor/fan in the freezer however the fridge is icing up, wouldn't this relate to an issue on the fridge side?

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Originally Posted by tonto33

check in test mode if it showing any error codes,also check thermal fuse defrost heater and senor and fan running inside the freezer









www.airkooldomestics.co.uk

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you can learn everything on youtube i did

where bouts are u in uk?

if those parts have been replaced,and the fault has not been cured,then perhaps the relay on the pcb is faulty.
ask the next engineer who next visits to put it in a function test cycle mode,

here he is able to test each part seperately,ie the comp,the fans, the heaters etc,

this mode switches on each item seperately, if he uses a multimeter when the heater mode is switched on.he will be able to determine the fault then.