Question about Bosch 24 in. SHU43 Built-in Dishwasher
This could simply be a detergent problem, but is most likely due to a low salt level in the water softener. The salt is used by the water-softener to prevent hard-water deposits which result in white stains on crockery and glasses. There are several things which can cause this:
1. There is no salt in the salt container.
2. The lid on the salt container isn't screwed on properly. (Don't overtighten though!)
3. Water softener is set too low
If you've checked and topped up the salt level and the lid is screwed on fully, then your water softener may be set too low. You should consult your user manual / installation instructions to change the setting.
The white deposits can also be caused by the rinse-agent being set too low. On your washer, the adjustment will be on a dial under the flap where you refill the rinse agent. I think it's numbered 1-5, so if it's set on 1, try number 3, if it's on 3, try 4 or 5. You may have to adjust a couple of times until you get it right.
If this doesn't solve the problem, try changing your detergent. Check the packaging and if your using phosphate-free detergent, try one containing phosphates. Phosphate-free is more eco-friendly though!
Posted on Oct 11, 2010
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Posted on Jan 02, 2017
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I have the same problem with gunk and spots on dishes. I took apart the parts at bottom covering the heating element. There is all sorts of gunk on everything. I cleaned it all, even under gaskets and filter screen. I am neither sure what caused it nor how to prevent it. My thinking maybe the water source. Water in my town has gotten worse in quality and has bad smell. I use a major water filter system for drinking water. My thought is that the heating element is drying the water up and leaving sediment from water.
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