We gave a neff S9J1F dishwasher. Recently on any cycle the detergent tab is not dissolving. At the end of the cycle we find it either half dissolved in the compartment or half dissolved at the inner floor of the dishwasher. We haven’t changed the tabs brand.

QUESTION: I just moved into a new apartment. The dishwasher is running normal but when it completes the wash cycle, my dishes are not clean and the detergent tablet is still there. The dishwasher is not dissolving the tablet. Maybe a little bit but about 80% of it is still there. I believe it gets hot water and runs normally. The apartment management said to use dishwasher cleaning tablets and not the powder soap. What can I do to try and get the tablet to dissolve? Any help you can provide would be great!

ANSWER: If your dishwasher hot water temperature is below 110F/115F, then it may not be hot enough to dissolve certain brands of detergent tablets. Be sure the water is HOT before you run the dishwasher. Run the hot water in the sink until it is very hot, then immediately run the dishwasher. Run the dishwasher on the longest, hottest cycle it has.
Also check that the spring opening action of the detergent dispenser door is working properly. If the detergent dispenser is too small a big detergent tablet may not be letting it open correctly. It may be jamming up the door. Try using a liquid or gel dish washing detergent if this is the case. There are many high quality liquid and gel dishwasher detergents on the market today. Liquid Cascade seems to be the best so give that a try. A powdered detergent will work too. Use a rinsing aid also as this will help remove spots even when the tablet may not be dissolving properly.
KEEP THE DISHWASHER DETERGENT DISPENSER CLEAN

If you are in an apartment, then most likely you do not have a high quality dishwasher. Knowing this, the dishwasher needs all the assistance it can get with the hottest water possible. You also need to be sure your dishwasher is clean at the bottom (removable strainer filter) where the pump and bottom washer arm is located. Be sure that it is clean and has hot water and this will be the best method to dissolve tablets. If you must use tablets, you can break them in half in the sink first. Place them in the dispenser and the hot water should make it easier to dissolve since the tablet is not as large.
You also need to be sure there is enough water for the pump to actually pump the water. To check this, start the dishwasher. Once you hear it running, open the dishwasher and be sure there is hot water and enough of it. If there is not much water in the dishwasher it may not be getting much water to the pump. When you open the door while it is running, check the water level at the bottom of the washer. If there is not much water at the bottom, then it may not be getting enough water to clean dishes and dissolve the tablet. Clean the filter at the bottom of the dishwasher to help the pump get the water more efficiently.
DISHWASHER PARTS IDENTIFICATION
If all else fails, you may have an old worn out dishwasher. The pump may be bad. Possibly your water heater is set to low. Your water heater should be set right around 120F. This will ensure that your dishwasher is getting the correct water temperature to effectively clean dishes and dissolve the tablet. If in an apartment, let the management know you are having this issue and they SHOULD resolve it.
Do you know of another way to assist a dishwasher to dissolve a detergent tablet? Please leave a comment below.

If your sprayer arms are clear, you will want to check these things.
The upper arm attaches to a tube in the back of the dishwasher. If the support clamps come loose, the upper spray tube will not be flush with the tube and can't carry water to the sprayer arms.
Also, make sure your water temperature is hot enough to dissolve your detergent. It should be 140 degrees.
Finally, make sure your detergent is fresh. If it is several months old, it might have become affected by humidity and will not dissolve.
I hope this helps. If it does, please come back to Fixya and rate my answer

assuming you are using the correct dishwasher detergent type and quantity recommended for the dishwasher, the likely cause for detergent not dissolving is that the water is not circulating well enough through the wash arm. Check the wash arms are clean. Do dishes come out clean? Run the dishwasher with a cup correct side up on the top rack. If it is empty at end of wash then there is no water in the top arm.

Is the detergent dispenser door open during wash cycle?
Also lack of adequate wash water template can cause detergent to remain undesolved. Hope this helps.

Either:

1. the water does not get into the dishwasher open the dishwasher 3-4 times during cycle, you should see some water at least once, if not - check water valve, water level float and water pressure.
2. the pump is clogged - there is water, the motor will run but no water is circulated. Check pump filters, check chopper and impeller.
3. motor in main pump is not working - could be caused by something stuck on the impeller or chopper or could be a problem with the motor itself or control board. Check if line voltage is coming to the motor during wash/rinse cycle.

Good luck,
Vlad
First Choice Appliance

Hi, dishwasher detergent stays in the compartment because Bosch has designed a gap at the top of the compartment that feeds water onto the detergent before the cover opens. This has possibly been done to soften up deteregent tablets and help them dissolve.

The result is a solidified mass of wet detergent that doesn't come out of the compartment when it opens, and slowly dissolves onto the dishes leaving them coated with alkaline detergent at the end of the cycle. The residual lump of detergent is in the compartment or on the bottom of the dishwasher (refer photo).

The solution is to remove the compartment cover and look for the small gap at the top of the compartment as in the photos. Clean the surface and fill the gap with epoxy glue. This will keep the detergent dry until the cover opens, allowing the detergent to fall freely out of the compartment.

I believe that the instructions for using these 3-in-1 tablets is to place it in the open dish detergent cup, rather than in the closable compartment, since the tablet needs to get doused by a lot of water in oder to fully dissolve and be effective in getting the dishes clean.

Since the tablets are designed to dissolve more slowly, they are able to be used for the entire range of washing cycles. If it's a constant problem and you don's have an open detergent cup below or next to your closed detergent dispenser, just toss it into the bottom of the dishwasher instead.

The reason that the tablet isn't getting dissolved fully is because the door is preventing the tablet from dropping all the way out and the door is shielding the tablet from quite a bit of water spray.

Another option is to take a look at your owners manual for the dishwasher and see if they recommend these all-in-one tablets versus regular powered detergent and liquid rinse aid.

Hope that helps and best regards!

Maybe that is a bit much... I thought of something else you might check... there is a screen at the bottom of the dishwasher... make sure it is clean so that water can keep recirculating.

The thing about adding water is that if you add the water at the beginning, it is going to circulate for 3 minutes or so and then dump out the water and attempt to refill. Most machines do a couple "rinse off" cycles before the soap dispenser opens and the machine washes the dishes for a long time. So you have to put the water in after you hear the dispenser "pop" open.

I'm not completely sure about the Kitchen Aid, but their might be a way to adjust the time that the water inlet valve stays open at the beginning of the cycle... you'll have to check your manual.

Hi!

Please run the machine without detergent for 2-3 washes. Also try using a little hot water. Also, don't used cleaner and softener together but add softener on the last rinse.

Hi and wlecome...
You should not use anything other than powered dishwasher detergent in these products. They are not designed for tablet-style detergents. The reason is because the dispenser does not "open" during the wash cycle like you would see on a conventional dishwaser. The incoming water pours over the detergent and releases the mixture out the bottom of the dispenser. If you need a user guide, you can get one here: http://fisherpaykelparts.net/index.php?blockitemid=29

either there is not enough water (check water valve) or the pump filters are clogged (check and clean as necessary)