Samsung Refrigerator - RSA1DTPE - Not cooling


Samsung Refrigerator - RSA1DTPE - Not cooling

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dammert89
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Good day all

So I have been struggling for about a week now to no avail.

I have a Samsung RSA1DTPE double door refrigerator/freezer. One Monday evening after coming home I saw the refrigerator's temperature was rising (It was working perfectly the previous day). So after reading through the service manual and testing a couple of components I am still clueless. Here is a brief summary of what I have tested so far:
1. I tested the resistance on the compressor while off (reading about 13.7 Ohms, as per the spec sheet it should be 14 Ohms)
2. I tested the voltage on the relay on the PCB (Getting 240V +- 2% which is what I expected) so the relay is fine
3. I can hear the compressor switching on and off intermittently 2 min off, 2 min on (Not sure of the timing, so the compressor is engaging.)
4. I have run the built in diagnostics on the refrigerator and I receive no abnormal checks.
5. Will the refrigerator is on, I can feel the compressor heating up.
6. All fans and thermistors are working and within their specified range (I think)
7. I have not tested the PTC or start capacitor yet (Advice on how?)

I hope this is enough info for you clever people to help me out. I bought this refrigerator about a month ago (second hand) and really don't want a 100+kg paper weight.

Model info:
Refrigerator model - RSA1DTPE
Rated voltage - 230-240V
Rated frequency - 50Hz
Rated current - 1.3A
Defrosting input - 320W
Climatic Class - T
Insulation Class of compressor windings - B
Rated max input of lamp - Freezer 1.6W
Rated max input of lamp - Refrigerator 1.6W
Refrigerant - R-600a
Refrigerant mass - 0.08kg
Insulation blowing Gas - Cyclopentane

Thanks in advance

Regards
Michael


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10 Months Ago by dammert89
BrittsAppRepair
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Good Morning and thanks for posting on the Forum! Sorry to hear about this issue with your appliance! 

Is the freezer still cold but just the fridge portion is not getting cool enough, or is the whole unit not cooling at all now? 
dammert89
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Hey there

The whole unit is not cooling.
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Hello,
If the compressor is kicking on and off every couple minutes you likely have a failing compressor or possibly a failing start relay or overload... These Samsung refrigerators are a bit tricky and sometimes complex so I dont like to offer diagnostics on them from afar but you should look directly at the compressor being the issue or the start relay and or overload which are responsible for starting the compressor and keeping it running.. sounds like it is kicking off maybe due to overloading or it could be the compressor is failing





dammert89
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Thanks for the feedback. I tested the compressors resistance and I get 13, 16 and 29 across the 3 points which looks to be in line with the rest. I am going to get a new running cap tomorrow. Getting OL readings on my capacitor. If that doesn't work I will have a look at the relay and overload protection.
Can the cap cause this problem? 
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a capacitor can cause this type of issue as well. Need to see what the run amp draw is suppose to be for your model and if you have an amp meter see how many amps the compressor is pulling when it is running, if it is drawing high amps then you could have a bad compressor.







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