I had the problem that's well documented on the WWW as "bosch
dishwasher stuck on 1" or "stuck in drying cycle", and found the
failed solder joint on one of the PCBs in the control module. Based
on the comments that resoldering it is just a temporary solution, and
on my lack of experience soldering PCBs, I decided to replace the
control module. The dishwasher now works --- to some extent.

This model has the following controls on the door:

+------+
| |
| 188 |
| | O O O O
+------+
+-----++-----++-----++-----++-----+
| || || || || |
|delay|| auto|| eco ||quick||pre- |
| || || || ||rinse|
+-----++-----++-----++-----++-----+


"188" is the LED that shows the remaining time or the delay in hours;
"O" marks the red LEDs to indicate the programme selected; and the
remaining boxes are the buttons.

Previously, each button (other than delay) would select a programme
and deselect anything else (so there's always exactly one red LED when
it's set to run). The auto, eco, quick, & pre-rinse programmes took
around 130, 140, 40, & 20 minutes (respectively) to run.

Since I replaced the control module, "quick" and "eco" are both taking
about 2 hours, "pre-rinse" comes up with "27" on the display (but I
haven't tried letting it run to see what it does), and the "auto"
button toggles its LED without switching the other programme off (I
haven't tried letting it run this way to see what happens). The delay
timer works normally. In summary, the controller is behaving as if
the dishwasher had a different set of options from the labels on the
buttons. The "combination" functions for resetting a running
programme, toggling intensive drying, and adjusting the water softener
setting all work properly, using the same button combinations as
before.

The part number on the box (SET-489607) is the right one for a large
number of Bosch models including mine (SGS4468GB/35); I didn't have
any trouble swapping the module in; and there aren't any plugs or
sockets left over. I also opened the door back up and double-checked
that all the plugs were properly plugged in and matched the digital
photo I'd taken before taking the old module out (although I don't
think they can be plugged in out of order anyway). The shop I ordered
the part from (which also does repairs) said there isn't any procedure
to set the module for a specific module.

Any suggestions?

Adam Funk wrote:

I had the problem that's well documented on the WWW as "bosch
dishwasher stuck on 1" or "stuck in drying cycle", and found the
failed solder joint on one of the PCBs in the control module. Based
on the comments that resoldering it is just a temporary solution, and
on my lack of experience soldering PCBs, I decided to replace the
control module. The dishwasher now works --- to some extent.

This model has the following controls on the door:

+------+
| |
| 188 |
| | O O O O
+------+
+-----++-----++-----++-----++-----+
| || || || || |
|delay|| auto|| eco ||quick||pre- |
| || || || ||rinse|
+-----++-----++-----++-----++-----+


"188" is the LED that shows the remaining time or the delay in hours;
"O" marks the red LEDs to indicate the programme selected; and the
remaining boxes are the buttons.

Previously, each button (other than delay) would select a programme
and deselect anything else (so there's always exactly one red LED when
it's set to run). The auto, eco, quick, & pre-rinse programmes took
around 130, 140, 40, & 20 minutes (respectively) to run.

Since I replaced the control module, "quick" and "eco" are both taking
about 2 hours, "pre-rinse" comes up with "27" on the display (but I
haven't tried letting it run to see what it does), and the "auto"
button toggles its LED without switching the other programme off (I
haven't tried letting it run this way to see what happens). The delay
timer works normally. In summary, the controller is behaving as if
the dishwasher had a different set of options from the labels on the
buttons. The "combination" functions for resetting a running
programme, toggling intensive drying, and adjusting the water softener
setting all work properly, using the same button combinations as
before.

The part number on the box (SET-489607) is the right one for a large
number of Bosch models including mine (SGS4468GB/35); I didn't have
any trouble swapping the module in; and there aren't any plugs or
sockets left over. I also opened the door back up and double-checked
that all the plugs were properly plugged in and matched the digital
photo I'd taken before taking the old module out (although I don't
think they can be plugged in out of order anyway). The shop I ordered
the part from (which also does repairs) said there isn't any procedure
to set the module for a specific module.

Any suggestions?

Are there any jumpers or programming steps to set it for your model I
wonder?

That controller sounds like mine, which means there are some hidden
programming steps availble via soem funky key presses that I'd have to look
up - mostly things like water hardness, beeper on/off. Don't remember any
setting for machine type. Which makes me wonder if there just might be some
jumpers. I'm taking a wild guess - but it's because you said it fits a
variety of models. I suspect it thinks the buttons are actually other
functions for a different machine, which is giving you weird behaviour.

Did it come with any paperwork - or are there any jumpers visible on the
module - or maybe a little rotary switch or a DIP switch bank?

--
Tim Watts

On 2011-06-15, Tim Watts wrote:

Are there any jumpers or programming steps to set it for your model I
wonder?

That controller sounds like mine, which means there are some hidden
programming steps availble via soem funky key presses that I'd have to look
up - mostly things like water hardness, beeper on/off. Don't remember any

Yes, mine has two settings (water hardness & extra drying) that you
activate by holding down one of the programme buttons & pressing the
power on, pressing the programme button to run through the option
numbers, and turning the power off to save. They still work the same
with the new module.


setting for machine type. Which makes me wonder if there just might be some
jumpers. I'm taking a wild guess - but it's because you said it fits a
variety of models. I suspect it thinks the buttons are actually other
functions for a different machine, which is giving you weird behaviour.

Yes, that's exactly right, as it turns out. After some run-around, I
finally got the "Model coding" sheet (PDF) from Bosch, which explains
the Vulcan nerve pinch sequences used to change the mapping between
appliance programmes and buttons. You hold down *four* programme
buttons and press the power on, then use one of the buttons to toggle
through 5 combinations of programmes, and press the power off to
save. Unfortunately one of those buttons is "extra" for my model and
ends up behind the panel itself rather than one of the external
pushers, so I'll have to take the front (or at least part of it) off,
recode the control module with the power connected, and then put the
panel back on.


Did it come with any paperwork - or are there any jumpers visible on the
module - or maybe a little rotary switch or a DIP switch bank?

There wasn't any relevant paperwork in the box, just a sheet (not
applicable to my case) about cutting and splicing some wires for some
other models.