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Budget Appliance Repair

Samsung Dishwasher Mod# DMT300RFW/XAA (Low and High water level errors)

16 posts in this topic

Samsung Dishwasher

Mod# DMT300RFW/XAA

Ser# A3HFG9MB101683Z

 

Did not have any tech info when I went and looked at it.  Found unit flashing the Over-Level water error, water was touching bottom of lower spray arm.

 

Nothing I did would stop the error from flashing, unplugged/turned off power/tried Drain Cancel.

 

Vacuumed water out and that stopped the error then did a Drain/Cancel and pump worked fine.

 

Tried to run again and it would fill for about 45-50 seconds then immediately go into a pump out then fill again for 45-50 seconds and give the Low-Level water error.   Water would be filled to just the top of the fine filter screen below the spray arm which looked like a normal water level to me.  Cancel/Drain worked to pump out and cancel the error but it just constantly gave this error when trying any cycle.

 

Water line was too short to pull dishwasher out while still hooked up to do any more checks and didn't have any tech info so I wrapped it up and will go back with the tech info I have and a longer water line so unit can be pulled out while completely hooked up so water fill system can be check.

 

Can anyone that knows Samsung tell me what the most likely problem would be in this case?  I'm thinking probably a stuck float in the water level sensor case and when the unit fills for 45-50 seconds and doesn't see the low water level then it shuts down after the second attemp, (Would that be correct?).

 

At one point I thought it was going to work, after the second attempt to fill but then it went into the Over-Level water error and locked up, couldn't clear error or reset until vacuuming the water out of the tub, (I believe it didn't drain fully after the first low-level error that it doesn't report so the second fill hit the over-level sensor before the 45-50 seconds low-level fill should have been sensed).

 

Any feedback on this would be helpful, I will be going back out on this Monday or Tuesday.

Thanks,

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Need appliance parts? Call 877-803-7957 now!

Thanks Scottthewolf, that is the part that I'm pretty sure is causing my problem, it contains the low-level sensor, (the float and micro switch), and the over-level sensor, (electronic sensor of some sort).

 

The low level sensor just being the float and micro switch system would seem to be something that could bind and not activate correctly if scum builds up in the sensor case and since all parts of the sensor system are available as separate parts it would seem that it may just need to be cleaned out so that the float and arm move freely if I find that is the problem.

 

Can any of the Samsung experts around here tell me if I'm on the right track and if it would be better just to replace the complete sensor unit instead of opening it up and cleaning it out if I find that the low-level float is binding?

Edited by Budget Appliance Repair

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It is usually completely fine to just clean them, but for the price.. cheap recall insurance to just replace it. I almost always just replace them as you can never seem to get them 100% clean although the few I have just cleaned seem to have help up fine.

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Didn't even need to clean it, must have been a kinked stainless flex water line behind dishwasher, (only had slight signs on stainless braiding - didn't look like signs of being kinked that much though).

 

After pulling dishwasher out and connecting a 6' stainless flex and running it, all worked fine.  No signs of float sticking at all and no signs dishwasher was jammed into cabinet causing the side metal plate to squish into the sensor case.  Pushed on side of sensor case to see how much pressure would be needed to hang up float and it was very much pressure, so I don't think that could have been the problem.

 

Will have to wait and see if I get a call back..........

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Hello,

 

I seem to have that very same problem.

So I pulled out the dishwasher from under the kitchen countertop, because it seemed to me that this part is at the back of the dish-

washer, but it isn't or at least I cant' find/see it.

 

Can somebody please tell me, where it is?

 

Many thanks, Richard

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# 7 Sensor DD97-00131A

which includes

# 10 Switch DD34-00003A

# 11 Sensor Case DD61-00236A

# 12 Cover DD63-00083A

# 13 Lever DD66-00034A

# 14 Wire Assembly DD96-00043A

 

50037802-00004.png

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Thank you Sensei,

 

but it still doesn't tell me where that is?

 

Is it on the back and at the bottom there or is it the bottom part of the front side of the applicance directly under the door?

 

Thanks, again, Richard

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..... and also, is that the same part that Sensei posted the link for in the second posting of this thread?

 

Thanks, Richard

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Is it on the back and at the bottom there or is it the bottom part of the front side of the applicance directly under the door?

 

Uninstall dishwasher. Senor Assembly is on the left side toward bottom behind a piece of sheet-metal held in place by two screws. Must uninstall fill tube enough to lift it up off of the sensor assembly. Sensor itself has two electrical connections (sensor and float switch) and a hose held on with a hose clamp.

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Okay, I found it and I removed something you could call the connector (am German and don't know all the words) but can't get it out due to that plastic thing that is to its left and a bit above since it is bigger.

 

Look at the picture please, that should make things clearer:

 

http://i931.photobucket.com/albums/ad151/gismeu/DW_zpsa657ecf3.jpg

 

So, next step is, how to remove that big plastic thing so I can take the 'white' thing out and clean it?

 

Many thanks,  Richard

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... don't know all the words

That's OK, Samsung calls them different names, some don't make sense.

See page number 3-16 of the service manual (posted earlier)

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Sensei,

 

looking at page number 3-16 of the manual, I did step 3, but having trouble with the first picture of step 4!

 

How do you remove that plastic thing? I've tried pulling and turning but to no avail.

Is there a trick or do I just have to pull harder?

 

Thanks, Richard

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Sensei,

 

looking at page number 3-16 of the manual, I did step 3, but having trouble with the first picture of step 4!

 

How do you remove that plastic thing? I've tried pulling and turning but to no avail.

Is there a trick or do I just have to pull harder?

 

Thanks, Richard

 

Hi,

 

basically still the same question as above. Thought maybe my post was overlooked, but would really appreciate if someone

would take the time and explain to me how to take that plastic thing off?

 

Many thanks, Richard

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Hello Everyone,

 

I did not manage to fix our dish wascher, so now the question is what to do next.

Called Samsung and for a technician to come out and just have a look is already $109.

 

So the question is, should I save that money and buy a new one or not.

 

The error message of the dish washer is:  'Low level water error'

 

The dishwasher is about 6 to 7 years old, we got it when we bought that house.

 

So what would you guys do? Any recommendations?

 

Thanks, Richard

 

 

 

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