Candidate for worst new dishwasher????

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a78jumper

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Joined
Sep 10, 2006
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28
My nomination is the Roper single arm POS that is installed in the furnished apartment I am in having newly relocated to Fort McMurray, Alberta. I guess things wash OK on the bottom rack, but everything on the top is still dirty, or encrusted with bits of food, necessitating a lot of pre rinsing. For another $100 they could have installed something that works IMHO.
 
Worst new dishwasher

I couldn't agree more with what you're saying. This ROPER is made by Whirlpool in Canada. It uses a centre spray cone to get water to the top rack and it just doesn't work too well. I had a portable one branded under the Kenmore name. I got rid of it pretty quick and bought a Moffat (Camco now Mabe Inc. GE knock off). What a difference. 3 level filtered wash, heated rinse and lots of cycles. The rack layout is good but I think Frigidaire racking is better. It's more like the original Westinghouse design - you could pack those babies full!
 
worst dishwasher

the worst dishwasher we ever owned was a whirlpool bought in 2001 and given away in 2002. the wash times were long and the dishes rarely came out clean. Bits of food still left on plates and pans and it was noisy aswell. The best dishwasher we bought and still have is the hotpoint aquarius nice hot washes plenty of rinses and nearly always spotless dishes
 
I have to say our Bosch should be on this list. I've discovered that even on the longest wash possible, I still have to pre-scrub everything or everything comes out with bits of food on them. Mom is not happy! She thinks our TT KitchenAid did a better job, while I don't think it's that extreme, the Bosch definetly needs to go!
 
Any plastic tub BOL - MOL (ALL OF THEM) are a POS in my opinion.

Frigidaire, Roper and GE are about the worst I guess.

Anywho, thats a landlord being cheap. Bet his/hers is not the same one you have in your apt?

Steve
 
I am putting up with it for the short term until I move into something permanent. Even the BOL Maytag at $400 I installed in my last house was a lot better, albeit even noisier.
 
Worst dishwasher? My mom's RCA made by GE, I think. It had nothing in the system to seperate the food particles from the water during wash & rinse. The user's manual said just to scrape large food particles from the dishes before loading. What a joke! Unless you rinsed everything off the dishes before loading, it would end up being distributed to all the other dishes in the tub.
 
Actually, My Roper Washes Well

My BOL Roper dishwasher (standard equipment in my 1999 condo) has done a good washing job overall. But I have found several things
1. Proper loading is the key to clean dishes; making sure the items get in contact with the water.
2. Before I run it, I turn on the hot water and run the disposer for about a minute.
3. ALWAYS use an enzyme-based detergent (I use Wal-Mart's Great Value powder; it does the best job for me and costs the least.)
I plan on replacing the Roper....when it breaks down!
 
In a pinch boil 3 quarts ( 3 litres )of water in a pan and dump in machine at the beginning of the cycle. (assuming the machine does not pump out/drain first.) Dilute detergent in it if preferred. It helps. Be careful not to over-fill the machine.

Make sure the water at the adjacent faucet runs hot before the machine is started. One can even do a "rinse and hold" with detergent to purge the lines of cold water, then add the boiling water to a normal cycle.
 
Gary:

We use the Walmart Great Value and alternate with Electrosol non-lemon too.
It seems that this last box of Electrosol doesn't work as well as previous boxes did. The powder is fresh and not clumped (not moisture contaiminated). We ran loads the last two days and we had food still stuck to the glasses. Of course we are using a BOL GE. But it usually works really well. The difference was so great that I actually checked the machine while it was running to ensure that the wash arm was moving and the tower was popping up. (It was).
One of the tests I use is pancake batter stuck on a clear glass pyrex mixing bowl. I just put it in the dishwasher unrinsed on the top rack. Usually it comes out spotless. Yesterday it came out with most of the batter still on it!
 
Pulsator

How old is your Bosch? Modern ones have the following problem.

Here in the UK, there is a common fault with Bosch and Siemens dishwashers: that of the blocked 'fill tube'. This tube allows water to enter the tub via the sump.

This is a corrugated tube that comes down from the heat exchanger/fill matrix on the left-hand side, and enters the sump wall, tangentially, at the sump's front wall. It has a habit of clogging up with grease and food deposits.

To clean this tube, isolate the machine from the mains electricity supply. Remove the lower basket. Remove the filters.

Carefully leaning into the machine, with a battery torch (flashlight), you may be able to see a small hole about the width of a finger, set into the vertical sump wall at the 6 O'Clock position. This needs to be GENTLY rodded out, using slim bottle-brushes.

DO NOT use excessive force, as the tube could come adrift, or be punctured.

The tube leads off left, upwards and backwards, and terminates at the water level pressure vessel. Even a small amount of crud can cause weird water level problems.
 
Our Bosch dishwasher is brand new! From the first use, it has produced poor results, I now have to not only prescrub, but preWASH all of the dishes before putting them in on the LONGEST cycle the machine has to offer! Glasses still come out with spots on them! I use Cascade oroginal powder and Jet Dry rinse aid, I've tried varying both to see if anything helps. No matter how much detergent or rinse aid I use, glasses still come out covvered in spots that will come off if scrubbed after they come out of the dishwasher! The worst is the silverware rack, I've tried putting silverware in with the handles up and the handles down, I've tried to little organizing grid for silverware and still, all of my silverware comes out with food dried onto it! BLECH!
 
Try adding some phosphates (STPP), works wonders.

Granted one shouldn't have to add anything, but these days it is all some dishwashers can manage what with water restrictions and all.

If you do not have a supply of STPP handy, drop me an email and perhaps can send you a bit in a ziploc baggie, or some such small container. However if the postal police/Homeland Security show up at your home asking about loose white powder in your mail, you are on your own! *LOL*

L.
 
In my posting above I mention that I thought the Electrosol wasn't doing the job in our DW. Well, the DW was having a problem, that's why it wasn't cleaning. This became the subject of another thread. All fixed now and Electrosol is doing a good job.
 
Jamie, we too have a new Bosch dishwasher, SHE58. I've not had issues to the same extent you have, however, I did have to experiment with detergents that work best. In our old DW, I used plain Cascade powder, Electrasol and Dish Drops tabs. With excellent results. In the new Bosch, the first two didn't work well. I've found that Cascade Complete powder, Dish Drops tabs and the very expensive Miele tabs work much better(I bought them at Arbor Vacuum). I've used Ecover tabs, also. They work pretty well(Whole Foods and Arbor Farms have them). Over all I really do like the Miele best, I wish they weren't so expensive, followed by the Dish Drops. I would be happy to pop a couple of each in the post for you to try. With this new dishwasher I'm able to get baking dishes, pots and pans and baked on stuff, at least, mostly clean. Something I would never have been able to do in the old TOL Frigidaire.
I think Launderess is correct. These machines are very water and energy efficient and require a bit of a learning curve to get the best results. I've had to experiment with detergents in my Bosch 6400 washer, as well. Our old Frigidaire FL could take just about any detergent I threw at it, except the P&G HE liquids, the Bosch is quite picky, even my favourite, SA8 can be too sudsy. The best ones I've found are Persil, Persil Megaperls Colour and Shaklee powders.
Now that I've found products that work in my machines I'm really happy with the results. Hope this helps, Todd
 
Pulsator,

There's a chance that the screen/trap is not seated properly on your Bosch. Make sure the central cylinder is aligned properly, and then with a partial turn clockwise, it should lock firmly in place. Anything else will result in food particles on the finished dishes and an overall bad result.

The trick, I've found, is aligning the cylinder properly to begin with. No matter how many times I've done it, it seems to take a couple three tries before I get it. But once in, my SHU43C works great - far better than the MOL Frigidaire it replaced (which had fatal debris screen warpage/leakage issues).
 
Shipping tape?

Jamie,
German dishwashers (and washers) are shipped with various little protective pieces of tape, foam rubber, films, etc. If your machine was set up by the installers, they may either have forgotten something and it is now slowly dissolving and blocking a filter or they knocked something loose by accident.
German dishwashers - B/S/H or Miele or otherwise do not leave residue on dishes, period. Like Italian machines, they use a series of filters to trap and remove the food particles. So make sure all the filters (and I do mean all) are clean and installed properly.
Any decent enzymatic detergent (Great Value is very good, actually) will work here.
Stupid question, and please forgive me for asking...but the first time my mother used my Miele in Germany, she set it to "Vorspülen" and thought, after the 17 minute pre-wash, it was done.
Given the way the American dishwashers are "dumbed down" by the German manufacturers, nothing would surprise me.
(The why of that is interesting, but not for this thread.)
 
The filter is in place and seated nice and tight, and I installed the machine myself. I made sure to remove all the prtotective tape and styrofoam inserts in the machine. Where does one get STPP powder? I've been wanting to try some for both the dishes and my whites ever since the Tucson wash-in!
 
[Na5O10P3]n

This product is not regulated in the US. The Chemistry Store (see link below) sells it in small quantities...
But, Jamie, forgive my German stubborness here, it is impossible for this dishwasher to be performing so poorly unless something is broken or an important step has been overlooked.
You did not mention the model number, so here are some things I would look for here in Germany:
- Soft water. Since German water is frequently very very hard, our dishwashers are always built to use a water softener or to use detergent with an extra water softener built in. Does yours have a built in water softener? If so, is there salt in the recharger?
- Temperature. Some electronic controls freak out if the incomming water is too cold or too hot (Whirlpool have had to deal with this and there was a cool video clip on it in a thread not too long ago.) Is the machine set to heat the water or to just use whatever comes in?
-Detergent Dispensing. Is the detergent being dispensed into the pre-wash, leaving none behind for the main wash? Don't laugh; those B/S/H covers can be hard to close properly.
-Rinse agent. If the setting is too high or too low this can cause problems.
-Not enough water. The arms should all be moving freely during the wash. Especially the topmost arm, which is responsible for cleaning the cutlery should really whiz along. Now, some B/S/H models have "partial fill" settings which turn off some of the spray arms. This saves water...but if that setting has somehow been activated on your model...well, it would explain everything.
The basic rule of European dishwashers, as opposed to American is that we hate to pre-wash, don't see why we should (that is the whole idea of a dish-WASHER) and loading is not all that critical, either.
Ah. Just had a thought. I had to install a check-valve on my mum's dishwasher last year, the garbage disposal was overflowing back into it. (I know, I know).

http://www.chemistrystore.com/sodium_tripolyphosphate.htm
 
The basic rule of European dishwashers, as opposed to Americ

I thought the basic rule of any dishwasher, not just German, is that you don't have to pre-wash or pre-rinse? I know I sure as heck don't rinse anything that goes in my GE and have no trouble getting spotlessly clean dishes, glasses and pots out of it. Same with my previous KitchenAid...both American machines. User manual even says not to pre-rinse, so I don't. Why would this be limited to just German machines?
 
I split my time between Europe and the US,

not as a jet-setter, but because I have to.
In Germany I use a Miele and a Candy.
In the US, I use a Maytag and a GE.
All four machines have good ratings in their respective consumer tests.
The European machines take nearly twice as long to clean.
The European machines start with cold water.
The European machines make their own "soft-water".
European dishwasher detergent is 30% phosphate plus enyzmes and oxygen bleach.

Because they start with cold water, European dishwashers are able to heat the water to the best temperatures: first to the temps. the enzymes like. Then to the temps. the bleach likes. And let's face it, 30% phosphate is probably 99.99% of the cleaning difference, anyway.
They have the time to really pre-wash (my Miele takes 17 minutes). They have the time to really wash until really clean.

US dishwashers have to work with warm water which is already so warm that the bleach partially deactivates the enzymes.
If the dishwasher does heat the water, then only to "boost" it. At 110V, 20Amps= 2200W Maximum you just can't do more than about 1°/minute.
(Mine runs at 230V, 16 amps=3680W Maximum. Big whomping difference.)(Actually, it could also run on 3-phase but we aren't going to have that discussion again. Ever.)
We all understand saponification and we all know about the attacking the glasses problem so that is why you have to load with dirty dishes.
And this is where the differences come into play.
Pre-rinsing here means remove the bones and olive pits. Burnt on, baked on, even cream-of-wheat doesn't matter. It all comes out clean.
Andrew, I'm sorry, but since I use two very good US dishwashers regularly, you just are not going to get me to believe that they clean non-pre-rinsed cream-of-wheat and burnt on eggs, baked on potatoes completely. They don't and they can't.
This is not a case of me bashing your country. It is, as Laundress so frequently says: time, heat, agitation. So to speak.
When you consider the limitations they have to deal with, US dishwashers do a good job.
 
Pre-rinse

I have a 1991 Maytag and I do not pre-rinse. I think it is a waste of time - that is what the dishwasher is for. Most everyone I know, however does pre-rinse and I keep trying to tell them that it is not necessary, provided that the dishwasher is loaded properly, but they refuse to believe it or to give it a try. I've never had problems with the dishes coming out dirty. And BTW, my Maytag is the older style ie. the plates on the top rack and the glasses, cups on the bottom. I put everything in the dishwasher except for the pots/pans and that's only because I don't want to ruin the finish.
 
Panthera -

You can believe whatever you like, doesn't really matter. Your experiences are just different, but my GE does it quite well. And my mid-90's KitchenAid Superba also handles those same jobs with equal and sometimes better ability, just a shorter cycle with much more water and noise. Quite honestly, I wouldn't keep a dishwasher that couldn't remove such basic items as cooked cereal, rice and potatoes. And I'm a big fan of hot cereals. The GE does it in a 95 - 102(+/-) minute Cookware cycle (minus the drying time). Cream of wheat and oatmeal are no problem for it from dishes or pots. Neither are eggs, egg casseroles, potatoes or cream sauces, casseroles, pots, pans, etc. Only thing it won't remove is proteins or starches that have burned onto cookware. The quality of the water you start with makes a big difference, and mine is somewhat soft, at about 6 grains of hardness, but with good overall quality. The loading is the other key....do a crappy job loading it, it gives you a crappy job back. The KitchenAid doesn't care how you load it, it just washes what you put in it, just doesn't have the space of a GE or a Miele at all. The GE may not be a Miele, for sure not built like one, but it doesn't cost what one does, either. But it sure works well. The KitchenAid is what it is...a workhorse that's built like a tank. Even my old GE, with wash tower on the bottom, had no trouble removing cooked cereals, pasta, potatoes, etc., at all. Just couldn't clean cups and glasses worth a damn on the top rack with big stuff on the bottom, so I got rid of it because I was tired of trying to scrape the dried on crap off the cups and glasses at the end of the cycle.

Overall, I'd much rather have my KitchenAid, but with the GE's space and rack layout. But such is life....the GE does the trick just fine. And I still don't pre-rinse anything that goes in either machine, and never will.
 
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