Bosch Dishwasher SGS09A08GB/11 limescale deposits

[tony359]

Hi there,

 

I'm back after some time with yet another issue with my 10y old Bosch dishwasher.

 

Few days ago I run several cycles in a row and found the inside of the dishwasher - and what was inside it - covered in what I believe was limescale. I sprayed some limescale remover on a small section of the door, left it there a few minutes and wiped the fluid and the metal was shiny again - this is why I believe it was limescale.

 

I then run a dishwasher cleaner and all went sparkly again.

 

Yesterday I had a similar issue after a quick rinse cycle. Not so sever as I only run one cycle.

 

My water is pretty hard, salt is set at maximum - always been. There is salt in the reservoir (Finish salt). The dishwasher worked fine for a few cycles after I run the cleaner so it seems that things are still somehow working inside.

 

Is there anything I can do? I believe some salt is dispensed at every cycle to regenerate the resins, maybe the dispenser is intermittent?

 

This is a glass out of the dishwasher (it is not 'worn out', it should be very shiny)

https://www.dropbox.com/s/phfsyyzjwdas9ga/2015-12-07%2019.24.20.jpg?dl=0

 

This is the door

https://www.dropbox.com/s/hvhjjvd2jy3zeya/2015-12-07%2019.24.39.jpg?dl=0

 

Any help appreciated!

 

Thanks!

Tony

[Samurai Appliance Repair Man]

Good pics, common problem. Some questions:

 

1. What kind of detergent are you using?

 

2. Are you using rinse aid?

 

3. Are you pre-rinsing the dishes before you run them in the dishwasher?

 

 

Homework assignment:

 

Dip a cloudy glass halfway into a bowl of vinegar for a couple of minutes. Rinse, dry and post another photo of the glass. 

[tony359]

Hi,

Thanks for your reply.

1. Finish powder. No "all in one".

2. Yes

3. No

 

When I have another cloudy run I'll run the vinegar test. However I did spray some limescale remover on a small area of the door after it happened. With no cleaning action it came up shiny after just a minute, just wiping away the limescale remover. This is why I feel it's limescale and not salt.

[tony359]

Hi

This hasn't happened again.

I remember I've seen this before, at the office.

What is causing that? How is it possible that one wash cycle is fine and another is not?

[tony359]

Hi there,

It's happened again today even though it didn't leave much staines on the dishes.

Picture of the dishwasher door.

 

Then I poured a little vinegar on the door, left it there for a while, then washed with softened water - so not to leave residues.

Result is below. It's indeed limescale.

Can someone please tell me why this is happening randomly? Repair Man, any help? You teased me and then disappeared!