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"The food filter is there for a reason, he adds – simply remove and clean it once a month" If you have a Bosch, I'd recommend doing it every third or fourth cy

"The food filter is there for a reason, he adds – simply remove and clean it once a month" If you have a Bosch, I'd recommend doing it every third or fourth cycle. There's no food grinder/impeller in these machines and the fine filter gathers material way faster than what you're probably used to. Example: https://www.youtube.com/watch?v=_M2b9QeiYRo&t=80s https://www.youtube.com/watch?v=_M2b9QeiYRo&t=80s The idea of leaving half-washed food waste in the machine and recirculated for a whole month also doesn't appeal to me. But perhaps that's just me.

mschuster91 5y ago
> The idea of leaving half-washed food waste in the machine and recirculated for a whole month also doesn't appeal to me. But perhaps that's just me. Unless there are actual solids (=bones, remains of stickers on glasses that contain plastics) in there, the combination of heat and extreme alkality of the washing water will dissolve just about anything over time so that it passes through the filter and gets pumped out.
- joezydeco 5y ago
  The common service call for Bosch dishwashers is "will not drain", and the common fix is to pull out the completely clogged filter and clean it as seen in the video above. The evidence doesn't support the idea that the material eventually dissolves out of the filter. Secondly, the final rinse water is filled into the tub and recirculated over the same filter. It's not directly sprayed from the water supply over the dishes and into the drain.
- dekhn 5y ago
  The difference between theory and practice in Bosch machines is very large. They don't really work that way, in my experience. Instead, the whole filter complex ends up with a huge gooey mess that clogs the whole filter.
  - jfk13 5y ago
    As a (satisfied) Bosch dishwasher owner, I don't recognise this description. Offhand I can't even remember when I last cleaned the filter. Meanwhile, it just keeps working.
    - c0nsumer 5y ago
      This morning, not long after reading most of this thread, I went to empty my Bosch dishwasher. It's just shy of a year old, and was a huge upgrade from the 25 year old Maytag it replaced. I keep being concerned about the filter, and hadn't checked it in a few months, and the only thing in there was a dozen or so dog hairs. Really surprised me because dishes get scraped and dog-licked, but there's definitely plenty of solids that go into the wash. Seems like the detergent (basic Powerball solid things) and hot water are doing what it's supposed to. The main complaints I read about it were how slow it is. At ~2:45 for a cycle that is a while, but it doesn't really matter. If I start it after a meal it's done well before I'm getting ready for the next. Run it overnight, done by morning. As opposed to my old dishwasher which was ~45 minutes and noisy and sounded super powerful, I think the long wash cycle is key to modern dishwashers. I believe they basically soak/flood everything over time, letting them chemicals do their job, and the less force means it's quieter. Couple that with a bunch of insulation and the result is something more efficient that works well, at the (completely acceptable) expense of time.
      - joezydeco 5y ago
        A lot of that 2:45 time is the drying cycle, which uses the latent heat in the dishes to (hopefully) evaporate water off the dishes and condense on the cooler inside of the tub. I'm a bit more interested in the newer Bosch models that are using a zeolite bed to dry the dishes. The catalyst generates heat and absorbs moisture at the same time, then is renegerated during the wash.
crispyambulance 5y ago
I find it strange that Bosch doesn't put grinders in their dishwashers, they certainly do have a good reputation. Why don't they? I happen to be looking for a dishwasher now. Mine is having problems after 8 years (it's from IKEA, probably a rebranded Whirlpool). It has a grinder, but it the upper deck is no longer getting clean because the upper spinnning thing is no longer spinning and flinging water, I think. Also the plastic bits and gasket are starting to deteriorate. Any recs for a good dishwasher? I'm looking for something that will last 10+ years.
- steffan 5y ago
  Asko, without question. I've had three (in three different houses) and they've always been fantastic. Current one is rebadged as a Viking. I would definitely buy another one. First one I actually removed and reinstalled in another house. That one lasted over 10 years and is probably still running.
- dotancohen 5y ago
  Just remove the upper propeller and clean the friction surface with a sponge. It probably has gunk or calcium or detergent built up on it. While you're at it, clean the water connection mating surface between the upper drawer and the back of the dishwasher. If there's gunk there water will squirt out and the propeller will have less water pressure. A gopro is a great tool for checking that both propellers are spinning properly.
- joezydeco 5y ago
  Why don't they? Energy consumption. No grinder means the whole system can be driven by the pump motor alone which uses less power. Simpler (cheaper) construction as well. the upper spinning thing is no longer spinning The sprayer arms aren't driven by motors, they're driven by the force of the water coming out. So that means you probably have food particles stuck in the ports where water comes out. I'd remove the arm and clean it by hand. Use a toothpick to open up the ports.
  - jmuhlich 5y ago
    Also if the upper tray is height-adjustable, check the rubber one-way valve flaps in the middle of the supply tube that runs up the inside rear wall of the basin. If any of those flaps are damaged or missing, water will leak out there instead of being directed to the spray arm depending on which height position you're using. If you're lucky, you might still have one usable height position without replacing anything. Otherwise you need a whole new supply tube ($60-100) as the rubber part doesn't seem to be sold separately.
SamuelAdams 5y ago
From the video: > To clean the food catcher, grab your partner's toothbrush and brush it into the rubbish bin. I love British humor.
dekhn 5y ago
I've had a series of bosches and cleaning the bottom filter is a very common operation - anything large that is left on a plate and doesn't dissolve (like a raisin) gets stuck below the filter (dunno how it gets through the filter but it does) and eventually that area clogs.

mschuster91 5y ago

> The idea of leaving half-washed food waste in the machine and recirculated for a whole month also doesn't appeal to me. But perhaps that's just me. Unless there are actual solids (=bones, remains of stickers on glasses that contain plastics) in there, the combination of heat and extreme alkality of the washing water will dissolve just about anything over time so that it passes through the filter and gets pumped out.

joezydeco 5y ago
The common service call for Bosch dishwashers is "will not drain", and the common fix is to pull out the completely clogged filter and clean it as seen in the video above. The evidence doesn't support the idea that the material eventually dissolves out of the filter. Secondly, the final rinse water is filled into the tub and recirculated over the same filter. It's not directly sprayed from the water supply over the dishes and into the drain.
dekhn 5y ago
The difference between theory and practice in Bosch machines is very large. They don't really work that way, in my experience. Instead, the whole filter complex ends up with a huge gooey mess that clogs the whole filter.
- jfk13 5y ago
  As a (satisfied) Bosch dishwasher owner, I don't recognise this description. Offhand I can't even remember when I last cleaned the filter. Meanwhile, it just keeps working.
  - c0nsumer 5y ago
    This morning, not long after reading most of this thread, I went to empty my Bosch dishwasher. It's just shy of a year old, and was a huge upgrade from the 25 year old Maytag it replaced. I keep being concerned about the filter, and hadn't checked it in a few months, and the only thing in there was a dozen or so dog hairs. Really surprised me because dishes get scraped and dog-licked, but there's definitely plenty of solids that go into the wash. Seems like the detergent (basic Powerball solid things) and hot water are doing what it's supposed to. The main complaints I read about it were how slow it is. At ~2:45 for a cycle that is a while, but it doesn't really matter. If I start it after a meal it's done well before I'm getting ready for the next. Run it overnight, done by morning. As opposed to my old dishwasher which was ~45 minutes and noisy and sounded super powerful, I think the long wash cycle is key to modern dishwashers. I believe they basically soak/flood everything over time, letting them chemicals do their job, and the less force means it's quieter. Couple that with a bunch of insulation and the result is something more efficient that works well, at the (completely acceptable) expense of time.
    - joezydeco 5y ago
      A lot of that 2:45 time is the drying cycle, which uses the latent heat in the dishes to (hopefully) evaporate water off the dishes and condense on the cooler inside of the tub. I'm a bit more interested in the newer Bosch models that are using a zeolite bed to dry the dishes. The catalyst generates heat and absorbs moisture at the same time, then is renegerated during the wash.

crispyambulance 5y ago

I find it strange that Bosch doesn't put grinders in their dishwashers, they certainly do have a good reputation. Why don't they? I happen to be looking for a dishwasher now. Mine is having problems after 8 years (it's from IKEA, probably a rebranded Whirlpool). It has a grinder, but it the upper deck is no longer getting clean because the upper spinnning thing is no longer spinning and flinging water, I think. Also the plastic bits and gasket are starting to deteriorate. Any recs for a good dishwasher? I'm looking for something that will last 10+ years.

steffan 5y ago
Asko, without question. I've had three (in three different houses) and they've always been fantastic. Current one is rebadged as a Viking. I would definitely buy another one. First one I actually removed and reinstalled in another house. That one lasted over 10 years and is probably still running.
dotancohen 5y ago
Just remove the upper propeller and clean the friction surface with a sponge. It probably has gunk or calcium or detergent built up on it. While you're at it, clean the water connection mating surface between the upper drawer and the back of the dishwasher. If there's gunk there water will squirt out and the propeller will have less water pressure. A gopro is a great tool for checking that both propellers are spinning properly.
joezydeco 5y ago
Why don't they? Energy consumption. No grinder means the whole system can be driven by the pump motor alone which uses less power. Simpler (cheaper) construction as well. the upper spinning thing is no longer spinning The sprayer arms aren't driven by motors, they're driven by the force of the water coming out. So that means you probably have food particles stuck in the ports where water comes out. I'd remove the arm and clean it by hand. Use a toothpick to open up the ports.
- jmuhlich 5y ago
  Also if the upper tray is height-adjustable, check the rubber one-way valve flaps in the middle of the supply tube that runs up the inside rear wall of the basin. If any of those flaps are damaged or missing, water will leak out there instead of being directed to the spray arm depending on which height position you're using. If you're lucky, you might still have one usable height position without replacing anything. Otherwise you need a whole new supply tube ($60-100) as the rubber part doesn't seem to be sold separately.

SamuelAdams 5y ago

From the video: > To clean the food catcher, grab your partner's toothbrush and brush it into the rubbish bin. I love British humor.

dekhn 5y ago

I've had a series of bosches and cleaning the bottom filter is a very common operation - anything large that is left on a plate and doesn't dissolve (like a raisin) gets stuck below the filter (dunno how it gets through the filter but it does) and eventually that area clogs.