[Koenigsegg]

Re: Samsung RS21

Ahem.. Have you tried searching this forum for “samsung noisy fan” or something similar ;)? Very common problem, it seems. (You’ll believe me when you see the number of search hits)

I’m not the tech guy here, so I won’t try to explain what the problem is, but if you read some of the threads from your search hits you’ll get the picture :).

Also, how about setting a bit more descriptive topics in the future? If everyone with a problem and a Samsung RS21 set the topic like this.. Well.. No disrespect meant, just pointing it out..

[Koenigsegg]

Re: Samsung RS21 DCNS fault code after repair

Secondly, can anyone tell me how to adjust the water level fed to the ice tray, please? I only have a small amount delivered, and only a few very small ice cubes. The delivery rate at the water dispenser on door is quite slow too, presumably due to narrow bore pipe from mains to FF. Not worried about this, as long as I get cold water I don’t mind holding the glass for a few more seconds.

I second that, it would be very nice to know as I had to disconnect mine, it just keeps pouring water. If you can’t tell, because of something weird, nonelectrical(licenses, Samsung copyrights, things like that), then I think that would be just as appreciated to be told. Not as useful, but better than nothing. Please don’t ignore this question?

[Koenigsegg]

Re: Samsung RS21 DPSM

Same here. But that is just so strange a method. I would have expected a sensor or something to decide when it’s time to change the filter. But a reset like this just brings a (time) counter into mind. Would be interesting to know how this stuff works.

[Koenigsegg]

Re: Samsung RS21KDMS – Ice tray keeps filling, auger motor r

Situation report: The front pcb seems to be ok, as far as I could check. No moisture visible, but with all the connections disappearing in under the big display block detailed checks were not really possible. Also checked all wires between front and main pcb, they were ok.

When I connect the power, to begin with all symbols on the front display light up for some seconds.
After that ‘3’ is shown in the fridge(?) temp, again for some seconds.
After that the “normal” display mode kicks in, with some 20 degrees C in both f&f, one of the ice cube mode lamps on etc.
Does that number 3 mean anything to you?

Oh, and my hair is still not pointing straight out from my head ;). On the more serious side that’s because I’ve been careful with what I’ve been doing. Sidenote for the casual reader.

[Koenigsegg]

Re: Samsung RS21KDMS – Ice tray keeps filling, auger motor r

You mean mailed him the numbers? Yep, been there, done that. And I’ve unplugged the whole thing. I’m sorry if I led you to believe otherwise :). I’m looking at the front pcb now. And trying to clean the ice&water … cavity? Lot’s of brown stains and stuff, looks like someone made coffee there or something.

[Koenigsegg]

Re: Samsung RS21KDMS – Ice tray keeps filling, auger motor r

The water valve solenoid? I disconnected the connector for it on the main pcb(the connector leads to the water valve and the ambient sensor). That was not so wise I guess, as the whole appliance just came to a halt. I think the policy for the main pcb is to stop everything if everything isn’t ok, and when it couldn’t read the ambient temp..

All that happened was that a bar(not the usual one) in the front temp display kept flashing. I’m sort of decoding/learning the display codes here ;-j..

I’m pretty sure that disconnecting the other – the valve – end, would make the water stop coming. (Probably the ice motor would keep running though :-[, but one problem at a time) It’s just that both my wife and the kids like the cold water..

[Koenigsegg]

Re: Samsung RS21KDMS – Ice tray keeps filling, auger motor r

Thanks all for replying.

Unfortunately I don’t know how old it is, I bought it at least second second hand ;-|. Though I suppose I could try asking Samsung for help using the serial number? I’m pretty sure it’s out of warranty, though.

I will definitely unplug it before doing repairs. Thanks for pointing it out.

The water starts running a couple of seconds after connecting the power. I can hear the relay on the main pcb switching, and the signal to the water valve changes(multimeter). But metering the front ice flap from the main pcb reveals no errors, ~0 Ohms when pressed, open circuit otherwise.

So the part about actually supplying the water to the ice tray seems to be working(Am I right that the only pressure used here comes from the water pipe that the appliance connects to, and that’s why the appliance manual keeps mentioning minimum pressure for which the appliance functions?) But the terms for *when* to supply it seems to have gone up the wall or something. If power is disconnected the water stops flowing, and the auger motor stops. But if left connected the water keeps(?) coming, at least a couple of litres. After that I had to stop it.

I’ll try drying the display pcb and see if anything else is wrong there. As the control signal for the valve relay on the main pcb comes – almost – directly from the processor it is kind of hard to backtrace. Making more or less qualified guesses about which inputs that are used for this can probably be beyond tedious.

Actually I’m from Sweden. I don’t mind british spares, but the freight costs might scare me off ;). Heaven knows that it might be easier *finding* the parts here, though. There’s one repairman in town that deals(?) with these boxes. Asked him questions about the Samsung three times, two times he said he’d mail Samsung Sweden and ask them, I have never heard from him since. I haven’t found anything close to this site here in Sweden, hope it’s ok that I’m here. If this is solved I’ll share my findings with the forum, of course.

[Koenigsegg]

Re: Samsung RS21KDMS – Ice tray keeps filling, auger motor r

It could be a potentially Great thing to know, how to control the fill time. ’cause right now it just keeps filling :-[.. And the crazy ice auger motor runs. That puzzles me even more, as the ice flap at the front seems to be ok.

Seems difficult to get to the front pcb, right? If it is inside the “made in one piece” door. Sigh. All the repair men/engineers seems to be on vacation, too.

[Koenigsegg]

Re: Samsung RS21KDMS – half freezer warm

Hi.
Of course. This is not efficient if done for a living. For me as a private person the situation is different though: If this solves my problem, then my costs have dropped from 80£ initially for a new cover and presumably some more for a PCB to about 2£ for a component(power transistor) replacement. I did this in my spare time. And the advice from this forum pointed me in the right direction. So I just wanted to say thank you. Unless something bad happens(read “drain hole”) I’ll consider this thing closed.

Disclaimer:
** THIS SHOULD ONLY BE DONE IF YOU KNOW WHAT YOU ARE DOING. ELECTRICITY CAN KILL. **

[Koenigsegg]

Re: Samsung RS21KDMS – half freezer warm

It seems you’re right, r600a :). Found one component on the main PCB that isn’t behaving the way it should. (The cover fan ran fine when in my “testbench”, btw) I’ll try and find a replacement and test the whole thing.

Thanks for the PCB replacement offer, but I simply can’t afford the whole thing right now. Also, I’d expect it to be more expensive than the cover. I guess my PCB is old, Rev 1.1. What’s the current version? The same? Otherwise, any significant changes? Just curious, but noone has to answer this. The main thing is in the other paragraph.

[Koenigsegg]

Re: Samsung RS21KDMS – half freezer warm

Ok. Those are bad news, indeed. No more replies tonight. (Where this server located btw?? The IP number points to England, but the time stamp of the messages here suggest a ~8 hour difference to Sweden. Never mind, that was off topic)

From what I saw earlier the components on that PCB are pretty standard, but I didn’t look at the fan part, only the heaters. That r600a thing in the middle is not so standard, of course. Thank you both, r600a and dpm. Can’t say desoldering components is my favourite hobby, so I hope it won’t come to that. I’ll get back tomorrow, hopefully. Thanks again.

[Koenigsegg]

Re: Samsung RS21KDMS – half freezer warm

Well.. I wasn’t going to do anything complicated 😳 . Pull the cover out, connect it via some wires to a power supply. But sure, I’ll admit anytime that your way is easier 🙂 . Didn’t think of that. I must have a compulsion to disassemble things.

But will I see if the fan is still running or not? Like I said before, when I held the cover inside the freezer and pushed the switch the fan seemed to run in “bursts”, not continuously. If I tape the switch and check it after some hours, will the fan not moving mean that it is broke or that it has a coffee break?

[Koenigsegg]

Re: Samsung RS21KDMS – half freezer warm

Hi.
Thanks for answering.
Here are my ohm readings for the fan:
GRY-YEL 1505 Ohms
YEL-BLK 16.44 kOhms
BLK-GRY 18.93 kOhms

As for the evaporator.. It’s not like everything is covered with ice, but the evaporator isn’t ice free either. The pipes on top of it and the upper fins do have ice on them, but there’s still room between them. So theoretically, if the fan was working, I think – some – air could still pass between them. As it is now, the temp could probably reach -20C too, but it drops so slowly that (No proofs, I’m guessing here) the defroster kicks in and pushes the temp back up.

I guess this is consistent with a faulty fan, especially as you say they might work at first and die after half an hour. But I’m reluctant to give up on it completely, as it is not completely dead. Yet. Is there anywhere I can find out what the FG connection to the fan means? If so I could put the fan/cover in some testbench for hours.

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