Question about Samsung DMT300RFS Builtin Dishwasher

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How to remove foreign object from pump chamber of a samsung dishwasher

It is making a cracking noise during cycles and the troubleshooter said probably a foreign object in the pump chamber. Can I fix this?

Posted by Anonymous on


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Samsung DMR78 dishwasher makes a grinding noise at

Check the brackets that hold the top rack for any broken plastic brackets. My dishwasher was making the same noise and after noticing the broken plastic pieces I pulled out the dishwasher put it on its side removed a white panel on the bottom that is attached with two screws, removed the drain line and inside there were two plastic tabs from the broken bracket. Once those were removed the grinding noise stopped. The bracket holding the drain hose can be removed with a pair of pliers.

Posted on Jan 29, 2011

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SOURCE: samsung DMR78AHS not cirulating water

see this causes:
I can not understand your problem exactly, however i will give you the 2 possibilites:
1) water is not entering to the machine:
a) valve inlet water, can be defective test see how
b) float switch defective, is located in the floor of the diswasher see how to test.

2) water is not drain to the machine:
drain line/ air/gap is clogged repair see the diagram
b)propeller pump defective, see the diagram and replace
c)DRAIN valve/ or solenoid elecric defective repair or replace.
d)belt is broken, replace
e)motor can be defective, try to turn manually, if does is o.k otherwise is defective, replace.
f)timer defective, try to clean, loose wires, broken or open repair, If does not replace.


Posted on Jul 11, 2012

  • 4 Answers

SOURCE: Samsung dmr77 dishwahser not washing or rinsing

Not the same washer, but same prob. I lay a bowl on the floor and placed the out flowing pipe from the pump side and a load of old water ran off followed by the fresh water just added. I raised the pipe to stop the out flow and then blew down the pipe and heard the air bubble in the washer, so that was now free. I secured the raised pipe , then cleared the verticle pipe and bend to the waste junction to the ubend under the kitchen sink. It was the blocked verticle waste that had caused the problem. I replaced pump's out flow pipe and all was well. ?This kind of blockage might have damaged your pump, but like me, you may be lucky.

Posted on Sep 23, 2012

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1 Answer

My SamSung dishwasher when draining make a grinding noise mike it has sand in it.

Most likely, there is some foreign object stuck in the drain pump (impeller area). If that's not it, then you probably have a bad drain pump.

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That's actually a 5E error code. The 5E error code on most Samsung dishwashers means a drain error. Most often this is caused by a clogged drain hose, or some foreign object getting caught in the drain pump impeller. But it can also mean you have a bad ECS sensor if the drain pump and hose are okay.

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At end of wash cycle,moter/pump make a ratching noise.can feel small wire in outlet chamber but it will not come out.

Take pump off, remove both ends of discharge hose and remove stuck piece of wire, or you may need to replace the pump.

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I have an ASKO D3250 and it has recently started making a loud noise from the pump area. It starts as soon as the cycle begins and doesn't stop even if you open the door. It seems to stop about 90 seconds...

All power and sounds should stop when any dishwasher door is opened.
Your door switch may be stuck causing it to continue.
The 90 second sound at the beginning of the cycle is the water pump extracting any residual water before taking on clean water for the wash cycle.
Any excessive noise from the drain pump could be debris in the pump. e.g. broken glass.
You can remove the pump and check it for blockage or any foreign object.

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About thirty minutes into the dishwasher running it starts to make a heavy woo, woo, woo sound, almost like a grind. It is only for about two sections of the time and then it stops and sounds normal...

The sounds it is making most possibly are coming from the drain cycle. It is probably finished with the prewash, or the first cycle (depending on what cycle you use). You may have some foreign object down inside the impeller which is why you hear it more now. Often times, a glass may get broken and a small piece gets down inside the pump, or we have seen alot of different things (from cherry pits, to chicken bones). At any rate, you should be able to remove the lower screen inside your dishwasher to a recessed area. You can try and see if you find any objects down inside there and if so, remove them, then replace the screen. If the noise continues, the foreign object may flush itself out eventually. If it gets worse, or continues without any relief, you may need to have a service person come out and take your pump apart to get the foreign object.

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Check for foreign objects like glass or plastic at the grinder blades. Some dis assembly will be required. See for diagram.

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If it is not overfilling, and then leaking, the whirring noise can be a defective water inlet valve, that stays stuck on open, see here : It's overfilling

If it is not overfilling, the two problems may be unrelated, and the noise can be froma foreign object inside the object trap.

See here about leaks and noise

It's noisy

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1 Answer

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It sound like a pump issue. Open the service panel, remove the pump and try to rotate its pulley manually, it should turn freely.In case it doesn't,check if it is clear from any foreign object or it should be replaced. Good luck !

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Whirlpool Sound During Drain

Yes, you can pull one of the pump's leads to find whether the noise comes from the pump. You should unplug machine's power cable first and be sure that the disconnected wire is isolated. Before replacing the pump look that it clean from any foreign object/ Good luck!

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