Question about Tappan 18 in. MDR251RE Built-in Dishwasher

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Dishwasher tablets I just put a dishwasher tablet in the compartment but I opened it in the middle of the wash cycle and it's not event wet yet. This is where you place the tablet, correct?

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Re: Dishwasher tablets

Is your dispenser opening at the correct time ? You should hear it when it opens. If it does not open replace the part inside of the door panel called a wax motor. This part opens the dispenser.

Posted on Dec 09, 2007

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What can I do to make it work?

I would have advised you before placing the tablet dry compartment with a dry cloths otherwise tablet would be stuck together. If does't help then put the tablet directly into the sink and never choose a quick program if you do not have functions (like 3 in 1, multi tab and so on....) that extend the time of duration of washing phase and give enough time for dissolve tab. Sometimes people on the upper basket hang up various odors or put dishes that may prevent to open small door to the end and dropping tablet.
The tablet most likely will drop during the washing cycle but the remaining time is not enough to dissolve the tablet and wash result will be bad.


Aug 16, 2014 | Electrolux 18 in. ESL4114 Slim-Line...

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Dishwasher tablet not dissolving during wash cycle

I am not sure if you can use dishwashing tablets with this model of dishwasher. These are designed mainly for powder only - you should be able to shut the detergent compartment door before starting the dishwasher.

Make sure the compartment is not blocked preventing inlet water from circulating through.

Dec 30, 2012 | Fisher and Paykel Dishwashers

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KITCHENAID DW KUDS30FXSS - 18 months old, will not complete cycles. Runs for 15 mins and stops & lights go out. Cleaning tablet often left in dispensor.

See my problem and solution. Sounds like you, too, are having a problem with the main control board (computer chip that controls the dishwasher), which is apparently a common problem with this model dishwasher. The part can be found here, for $211 (tax + shipping), and they have a 30-day return policy in the event that it does not fix the problem. It's an easy DIY fix. Hopefully this helps!

Aug 15, 2012 | KitchenAid KUDS30FXSS Builtin Dishwasher

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When a put in a dishwasher tablet in the compartment, the tablet is not used up during washing and is still unused at the end of the wash and sometimes falls out when I open the dishwasher afterwards- what...

If it is falling out then the compartment is opening. But now for you to say that it is unused, is another issue! If you have water spraying normally in your unit, it should show on the tablet even if it isn't completely used up.

Have you tried the powder? What does it do?

Aug 08, 2011 | Haier DW12PFE2U Dishwasher

2 Answers

Detergent tablet not dissolving.

sometimes the dispenser doors are not designed for tablets, and they don't let enough water in to dissolve time you wash; put the tablet in one of the silverware compartments....should do the trick. and leave the dispenser door for liquid detergents only.

if this is helpful please click the correct button. thanks

Jan 22, 2010 | Zanussi Dishwashers

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Tablet is not dissolving from my dishwasher drawer

If it drops to the bottom when you open the dishwasher door - your soap dispenser is blocked by the rack or an utencil protruding from the rack. Make sure both racks slide in all the way to the back. (hint: check the middle spray arm inlet, make sure it aligns with the tube on back.
Good luck)

Oct 22, 2009 | Whirlpool GU2400XTP Built-in Dishwasher

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Dishwasher 3 in 1 detergent tablet not dissolving.

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!

Jul 31, 2009 | Electrolux Dishwashers

1 Answer

Neff S5433 Dishwasher - Detergent tablet not dissolving


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.

Feb 22, 2009 | Neff 24 in. S5456 Built-in Dishwasher

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Bosch Exxcel Dishwasher

no not if it getting hot it still sounds like the motor isnt coming on put the spray arms in the same position turn it on then open the door are the arms still in the same position or haved the moved.those cleaners need hot moving water to melt the seal.

Aug 30, 2008 | Dishwashers

1 Answer

I have a Chef Classic dishwasher - not washing properly

The caddy for cutlery on this model is in front of the compartment where you put the tablets. What'll sometimes happen, is a spatula or wooden spoon or something in the caddy will hold the tablet compartment lid shut - it'll stop them coming out properly.
After a while the water movement will move the obstruction and the tablet will come out, but it'll only be dissolved for a bit of the wash and the dishes won't be cleaned properly.

Dec 18, 2007 | Magic Chef CDB6100 Built-in Dishwasher

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