New Dishwasher On Order: GE PDT750

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Not that we are past the holiday

And many more loads of dishes, is your opinion on the dishwashers washing capabilities still favorable?

Thanks for an update

Scott
 
I've had it only a week, but it has definitely put in time-and-a-half with overtime! So far, so good. The Normal cycle takes care of most loads. The household water heater is set at 140 degrees, so I shave time off moderately-soiled loads by foregoing water temp boost. Pyrex/Corning baking dishes don't appear to need the muscle of the Heavy cycle, either.  The Normal cycle clocks in at 1:15 if you don't choose the Boost Temp.  (1:51 with Boost Temp; 2:35 with Sanitize Temp).  Add nearly an hour to all those times if you choose Power Dry---which I never do.

 

The Heavy cycle takes care of heavily-soiled/baked on soils in loads of stainless steel pots and pans.

 

The 30-minute Express cycle is great for loads of bowls, utensils, and pans used for food prep. It's nice to get those loads out of the way quickly, without precarious, Dr. Seuss-like stacks piling up on the countertop. Haven't used the 49-minute Light cycle, yet.

 

I still miss the third (upper) rack for silverware & utensils, but am getting used to a traditional flatware basket.

 

I'm using the Bottle Wash feature for the first time at this very moment. We'll see how it takes care of dried-on pancake batter in narrow-necked bud vases. It's a feature that won't get much use, but I had to try it at least once.

 

The machine is so quiet; even the fill is nearly silent. I spend many hours in the kitchen on weekends, and listening to a dishwasher drone on and on all day gets tiresome. No problems with that, anymore.

 

Operational quirks:  

 

It has an odd protocol for draining.  Don't know if it's related to a soil-sensor---although I have yet to use the AutoSense cycle---or if there's another reason, but it drains for 2 seconds, pauses for 1 second, drains for 2 seconds, pauses for 1 second, then drains for 5 seconds and pauses for about 12 seconds.  Then it drains for 2 seconds, pauses for one, finishes draining, and begins to refill.  I haven't noticed if it does this on all the drains or just the first one.

 

Prewash Option--  I can see why the manual recommends using detergent pacs.  This is what occurs after the first fill when you add the Prewash option to a cycle: It alternates spraying water between the lower and upper racks every 5 seconds for a couple of minutes, then drains and refills.  The first dose of gel or powder would be wasted. Haven't paid attention to what happens after that, but the Prewash adds about 30 minutes to a cycle.  There is a more traditional (but brief) first wash if you don't choose the Prewash option.

 

One downside of its hushed operation is that you really need to sit down in front of it and pay attention to what's happening if you're curious about how it operates. I have not done that, yet.  I notice the first few minutes of the cycle, and then don't think about it again until the Clean light comes on.

 

Manual-Clean Filters--- The ultra-fine filter (pictured in a post above) gets soiled more readily when using the Express cycle several times, consecutively; and I have confessed to being lax in the dish-scraping department. I suppose the machine doesn't run long enough to allow the filter to clean itself off, to a degree.  It's so easy to remove and give a quick rinse under the faucet that it doesn't bother me at all.

 

The 2-watt fan continues to run for at least an hour after the Clean light signals the end of cycle.  The fan shuts off and doesn't turn back on once you open the door. Haven't used the Power Dry option, so don't know if it behaves similarly in that instance.

 

I give the machine two thumbs up at this point, but it's still very early in the game.

 

:-)

 

 

[this post was last edited: 12/27/2013-16:33]
 
Draining protocol

Eugene, I was at friends' house for Thanksgiving and they had a new WP TT with filter system. When it drained each time it did a similar sequence.

So there's no capability for having detergent during prewash, just the main wash?
 
Same here. My Bosch will drain, spray, drain, spray and drain after the main wash. I suppose it's to create turbulence in the water to wash the filter.

You say that prewash sprays water "for a couple of minutes" and then drains but adds 30 minutes to the cycle. What does it do in the remaining 25 or so minutes? Does it then extend the regular prewash that would have taken place anyway?
 
My bad: It's a Presoak Option, not Prewash. Too late to edit and correct the term in the post above this one.

Bob: You can add gel or powdered detergent for the prewash/first wash. You simply pour it onto the indentation on the closed detergent lid. See photo up the thread. When using a gel, I pour the prewash dose directly into the tub so it can go to work a little quicker. If you choose the Presoak option, it basically gets wasted, as explained above. If you don't add the Presoak option, the prewash/first wash is longer and the detergent is better utilized. At any rate, the cycles appear custom-made for using a pac, which gets released during the main wash. The manual recommends using a pac---specifically Cascade Platinum.

Alexander: I haven't paid attention to find out why the Presoak option adds 30 minutes to a cycle. Will plant myself in front of the machine for a whole cycle (when I can find the time) and document the sequence of events.
 
The spray-drain-sequence is used to self clean the filter. The water is (normally on this system) drained from the inner filter. You will see the cahnnel to the recirculation pump will go from the side walls of the filter housing away anywhere towards the pump. And then, there should be a small draining channel at the bottom of filter housing (maybe covered or anyhow hidden). This is where the drainpump is connected to.
Now, the DW washes and the filters fill up with gunk and residue. The big filter area visible from the top will catch havier/bigger particals, the fine filter smaller ones.
Now as the first drain starts, water flows the opposite direction through the filter as it would during the wash cycle. Means this flow removes particals from the filters. The stop/spray then is used to help the bigger particals on top of the filter settling down again and then being again drained towards the middle of the filter, down into the pump (sorry for that bad english). This is the self cleaning part of the filter.
Further, this explains why the short cycle keeps the filter uncleaned. Maybe this routine is removed completly to safe time or there are just not enough drain phases that can clean the filter...
 
GE version of Reversa-Jet

Well, it only took General Electric 49 years to catch up with the reversing spray arm that Tappan used in its 1965 Reversa-Jet. :)

Below is a link GE's short video.

 
I figured the PDT760 would make its debut fairly soon, as it is referenced in the user's guide for my PDT750. I miss the cutlery rack from my LG, but the 760 wasn't available when I needed a new machine. Oh, well. "Worse things happen at sea," as my dad used to say.
 
Last fall we were forced to get a new dw after a slow leak did our WP in.  We still have bisque appliances, so my wife insisted on a machine that matched.  So far, we've been fairly happy it, but I've noticed that sometimes the detergent cup doesn't completely empty.  I've been experimenting with how much silverware, and what size pots, pans, and dinnerware is placed in front of and underneath the detergent cup.  I've also noticed that the Calrod heating element doesn't get nearly as hot for the drying portion of the wash cycle as on previous machines we've had (GE, WP).  We leave it on normal wash and heated dry nearly all the time.

 
Tim-- You have a different model than me, but are you using a detergent pac? The detergent dispensers on GE's are custom-made for them. I've never had a pac (Cascade; Nellie's; Member's Mark Ultimate Clean) fail to dissolve completely.

Ben (washman) has noted several times that he can only use Cascade pacs in his GE or some gets left behind in the dispenser.

I'd forgotten all about this thread! A year later I'm still very happy with the GE. Wish the racks & tines were as brawny as those in the LG; wish it had the larger interior dimensions of the LG, as well. Otherwise, it cleans like a champ and is nearly silent, so no complaints.
 
I have the same model GE as Tim, only in white. I use Finish Quantum Power Ball paks, they dissolve completly and this dishwasher cleans excellently and is very quiet. I'm very pleased with this dishwasher.
 
Frigilux,

No detergent pacs here.  We usually use a 50/50 mixture of powdered Cascade/Hytron along with 1 tsp STPP in the cup.  We also have the rinse aid dispenser set at 2.  Excellent cleaning, and hardly ever, if ever, any food bits left behind.   

 
Correct Frig

I've used all the pacs, pods, pellets, etc. Brand name and generic store brands. The best results come with the Cascade Platinum 10x pacs. GE makes it clear in the manual. First time I have ever had an appliance state a specific detergent for best results.

FWIW, the soon to be new house has a Frigidaire DW, brand new, not sure what it recommeds. We'll find out when I close next month.
 
Long Term Review

Hi Frigi,
By now you've gotten to know your GE PDW pretty well.
How are you liking it in the long term? How has it been holding up? Is it still cleaning well?

When I get my new place, I want to get a PDW720 so I'm interested in the performance of this architecture.
Plus my parents have a 500 series with the dual sliverware racks. They complain about it not cleaing "like the old one." Of course (eye roll) But I hear other good reviews so IDK. Maybe they're not loading it well?

Cheers,
 
Mine cleans even the worst pots/pans very well, is super-quiet, and very energy-efficient. My previous dishwasher was a 2008 top-of-the-line LG which had a noticeably larger interior, beefier racks, and an overall feeling of high quality. I find the racks on the GE to be kind of flimsy by comparison, but they are holding up well, so no complaints there.

I use Cascade Platinum or Member's Mark Ultimate Clean (Sam's Club) pacs, and have experienced only one or two instances of a pac not dissolving completely.

The PDT750 is highly rated by CR and Reviewed.com. John (combo 52) has a GE with the same wash system (the quad arms) and finds it lacking in both cleaning ability and build quality.

I'd have no problem recommending the PDT750, but have to admit I may look toward KitchenAid for my next dishwasher. LG changed their wash system a few years ago and their cleaning scores at CR have dropped significantly; nor has LG been able to solve the problem of poor reliability. Mine worked very, very hard for 5 years (easily 2-3 times the normal "seven loads per week"). Unfortunately, water from a cracked drain hose very slowly eroded the floor and subflooring under and around the machine. I no longer trusted it, so it was repaired and sent out the door to a new home where it is still in use.

[this post was last edited: 10/21/2015-16:42]
 
1. The PDT750 has no steam function. It cleans as well as my LG did without it.

2. There is no heated dry. The Power Dry (or whatever it's called) differs only in that an hour is added to the cycle time. If you haven't selected that, the CLEAN light comes on immediately after the final rinse is drained. A small, 3-watt fan operates for about an hour or until you open the door. I usually just open the door and let everything flash dry. If you select Power Dry, an hour is added to the cycle time and the CLEAN light doesn't come on until the fan shuts off. That's the only difference. The GE is not a steller drier, especially with plastics.

3. I believe the cheese enchilada pan would come emerge clean given soft water and a Cascade Platinum pac. Can't speak for other circumstances/detergent choices.
 
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