Drainage problem my dishwasher doesn't rinse very good and the water doesn't drain very well. What is the cause and how do I solve this?

Hello

Your dishwasher has been designed to use a liquid rinse aid. Pouring a liquid rinse aid into the proper recepticle in your dishwasher when you add dish detergent greatly improves drying performance. You can further improve drying performance by selecting the Sanitize option, in addition to the other options you've selected, and increasing the water temperature.For Best Results, use Jet-Dry Turbo

Spots and film form in your dishwasher's rinse cycle, when detergents are already down the drain. FINISH® JET-DRY® Rinse Agent works in the rinse cycle, lowering the surface tension of water and causing it to sheet. Better rinsing results in less spots and film.

If these recommendations do not improve drying time, please contact Samsung Customer Care

F11 means Drainage fault.

Water present in appliance and is not being drained off. The display shows Drain fault F11. The buzzer is activated for 2 minutes.

Background information:
After each drain pump step, the circulation pump operates for 2 seconds and heater pressure switch B1/13 checks the water level. If it is too high (large quantity of residual water remaining in the cabinet), the drainage time is extended. If, after a further check, the water level is still too high, then the program is interrupted, the fault code is saved and the drain pump is activated. Fault code F11 is also registered if heater relay 1K1 is not activated after the fault code F51 register check; see Section 080-3.18. Drain hose kinked. Remedy: Check the drain hose for correct positioning.

Cause: Drain blocked.
Remedy:
1. Clean the on-site drain.
2. Check the sump drain.
3. Check the filters.
4. Check the heater pressure switch and replace it if necessary.

Cause: Ball in non-return valve in sump has not opened (e.g., jammed).
Remedy:
Clean the non-return valve in the sump or replace it if necessary. Cause: Foreign objects in the drain pump.

Remedy:
Clean the drain pump and its impeller.

Cause: Drain pump defective.
Remedy:
1. Check the voltage supply to the drain pump.
2. If correct voltage is present, check the drain pump motor winding.
3. Replace the drain pump, if necessary.

Cause: Foreign objects in heater pressure switch.
Remedy:
Check the heater pressure switch for blockages and correct switching point.

Cause: Heater relay defective. Heater relay (coil or contacts) becomes defective during the drainage step (after fault code F51 register check).
Remedy:
Replace the heater relay.


Hope this helps to solve it.

Hi and welcome to FixYa, I am Kelly

The drainage problems are caused by particulate in the drain.

There are 3 areas that cause restrictions with larger food particulate
1. The Air-Gap (if equipped) but the most common blockage point,
2. The sink connection. This is usually a garbage disposal connection. If the user is not properly rinsing long enough while the garbage disposal is in use the garbage disposal / dishwasher connection port is blocked with garbage disposal debris.
3. The bottom of the dishwasher sump area under the lower wash arm. If this area is blocked the user will complain of dirty dishes post cycle, It also causes drainage problems, If the user says dishes are not getting clean and it is not draining properly this will be the LAST area to check. Do 1 and 2 first.

I have had multiple call backs on some units... I have learned to call a brief moment before stopping by and inspect the DIRTY dishes in the dishwasher, the sump, air-gap and sink connection. Most of the time I find that the user is placing dishes with large food particulate in the dishwasher or... they are not letting the water run long enough when using the garbage disposal so the garbage disposal port clogs. These are the same folks that have things like pump impellers and pump housings that get broken due to their daily routine habits.

You wil have to clean all of the drain connections for the dishwasher pump outlet all the way to the sink connection. The Air-Gap is the most common area for blockages so pull off the cover.. unscrew the inner top nut NOTING the installed position BEFORE removal and clean out the Air-Gap (if you have one) Otherwise remove the drain hose at each connection and remove the debris. It is OK ot reconnect each connection after your done cleaning. This will solve about 85% of dishwasher drain problems. The last 15% the lower wash arm and support has to be removed to inspect for pump impeller damage or motor pump housing damage.

FYI the 2nd most common reason for drain problems is the actual sink port connection being clogged. Just clean the drain hose connection ports and the air-gap.

I think once you get all of your drain connections cleaned that your dishwasher will operate normally.

Thanks for choosing FixYa,
Kelly

You will need to check the drain hose to make sure that you don't have a partial blockage. If you have an air gap check that to make sure it is not partially stopped up. If you don't have an air gap check to make sure your drain hose is not lower than your sink drain allowing water from the sink to drain back into the dishwasher.

The machine probably has water in the base (not visibly in the machine, but in the base where the conponents are). Pull the machine out, sit the front on a large towel and holding the back of the d/w pull it towards you. Any water trapped in the base will drain out. It may be a fair amount as the flood safety switch will activate on approx 1.5 ltrs. Once you've cleared the water run a prewash or quickwash to check d/w. Hope this helps.

www.dishwasherfilter.com will solve your problem. its hard water causing the spots and not your dishwasher.

My dishwasher runs but just does not clean and leaves food particles all over like its not getting clean water to it. I cleaned the passages of any food from the top end. Any suggestions. Its a moffit MLD4007l20ww

Hi,
The most common cause of an OE error code on a modern LG dishwasher is:
1. Blocked drain hose
2. Obstruction in the sump area (beneath the filter, which needs to be removed to check for onstruction)
3. Failing drain motor. 
else you need to REPLACE THE PCB POWER CONTROL BOARD
Good Luck!!!

There is a drain hose that runs from your dishwasher to underneath your sink. (usually connects in right below the drain spout)

It sounds like this may have become clogged, or the sink drain is clogged causing the water to back-up in to the dishwasher drain hose.

cycle switch on the front is most likely bad