Samsung rs261mdwp compressor won't kick on


Samsung rs261mdwp compressor won't kick on

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nateleduc
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Hi All!

A little back story on this. I was given a fridge by a friend awhile back. It sat in my garage for awhile as the main control board failed (fridge had no power, no lights, nothing) and I ended up replacing the control board with a replacement I bought online. The fridge was fine for several months, although it did have a few times where I had to reset the fridge by unplugging it. Eventually it stopped cooling all together.

I tapped the AC low side and verified the refrigerant was good. I attempted to replace the running capacitor, but the replacement (while the same model number) didn't look to be an exact replacement (different rating). I tried the self test, which didn't report back any error codes, and am at a loss of what to try next. When the fridge stopped cooling, it dumped all the ice (which turned to water) onto my floors, resulting in me having to have them replaced, so I don't have the funds for a new fridge currently. I'd really like to get this one running again for the time being until I can save up enough to replace it completely.

Anyone have any thoughts on how to proceed? 
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Is the compressor trying to run? what about the condenser fan motor next to the compressor, is it running?





nateleduc
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Hi there!

The condenser fan is running, and stays running. The compressor doesn't make any noise. Strangely, up until recently, it would randomly kick on from time to time (which made me think it might be the capacitor)

Also, for reference now that I'm home, here are the original and replacement capacitor values

Original
Model: DMF-251206.SH
Rating:250 VAC 50/60hz
Rating 2:12uf -5/+10 %
Rating 3:25/85/21-P2 - Class A

Replacement
Model: DMF-251206 SH
Rating: 250 VAC 50/60hz
Rating 2:12uf -5/+10 %
Rating 3:25/70 /10 -P0 - Class B 
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Last Year by nateleduc
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It sounds as though you have a failed starter and or relay or the compressor has failed. You can try a 3N1 hard start kit such as this https://www.appliancezone.com/rco410-refrigerator-compressor-3-in-1-start-kit/  invest $18  and you can find out this will either start the compressor or not..if not you will need a new compressor





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Kit ordered! I'll let you know once it comes in.
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Parts received! 

My capacitor has three wires, two blue that go to the same connector on the capacitor (running and start wires?), and a pink/black wire. 

The high start kit has 5 wires. I'm guessing both red/white need to connect to the two blue wires, while black needs to connect to the chassis (ground). I'm not sure about where to connect the power lines to.

https://imgur.com/a/HF83iiE

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The red, white, and black wires that are paired together are what go on the compressor itself... the two black wires on the other side of the RCO-410 connect to the incoming power supply from the refrigerator such as the actual power cord.





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I think I understand,

The compressor does have three wires (i'll have to look them up when I get home). 

Thank you for your help thus far!
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new guy on board.......when the compressor tries to start does it make any noise.....do you have a clamp on ammeter....see if the compressor is trying to run....  measuure the resistance of the windings on the compressor.... if the compressor is trying to start does the overlaod ckt breaker click.... is the board commanding the compressor to start....these are the things i would ck....in the diagnostic mode the segments on the temperatrue panel will reflect whether or not the computer is commanding the compressor to run.....its a bit more complicated that the old ones...but they still wrk the same.....the capacitors are both the same size 12mfd.   do you know for sure the cap is good... does your multimeter measure capacitance.. its good to have one that does....hope this helps along with any other advise out there... look for the easy stuff first..... i learned that lesson a long time ago working on very sophisticated militrary hardware...
capn

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Howdy!

The compressor doesn't kick on or make any noise. I'm guessing that the board it's self isn't sending any signal. I tried accessing the diag mode via instructions online, but it didn't seem to show any fault codes.

I have this multimeter:
http://1.bp.blogspot.com/-99gQDPgFmpY/VedGlkjMGaI/AAAAAAAAJno/t0FeEaigROU/s1600/radio%2Bshack.jpg

I'm not the most skilled when it comes to electrical engineering, but I accept direction well. I don't remember the measurement on my multimeter when I put it in ohms (or if this meter is sufficient for checking this capacitor).

I did buy the high start kit to test the compressor, which I'll look at tonight.


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