No pressure on water, internals all cleaned, doesnt drain, remains on 1 minute when on countdown.
SOURCE: Bsoch dishwasher runs long and displays 1 minute left on timer
sounds like a bad solder connection on the heater relay of your control unit. more than likely you will need a new control unit. part number 266746
SOURCE: gets to the end of the cycle (1 minute left on
Hello,
Welcome to FixYa.
Based on your description I'd say the issue actually with the control...unfortunately. The "1" being displayed is actually an error code associated with a heating fault.
Bosch has had a history of this exact problem I'm about to lay out for you and this is the first thing I'd be looking for if called out to service the unit with the symptoms you've described.
**B/S/H/ also issued a recall on certain models between 1999 - 2006 depending on the model & serial number, you can check with yours but you'll need the serial number too. The issue was directly related to the heating circuit (specifically the heat relay on the control) Here`s the link if you want to see for yourself **
http://microsites.boschappliances.com/safetyrecall/dishwasher/
As I've alluded to the issue is likely within the electronic timer/control, specifically the heater relay solder joint. ( a faulty flow switch, ntc or heater can also cause this, but not very probable ).
My first suggestion would be contacting Bosch re: the recall or calling in an authorized bosch service tech. if that is an option for you and your budget however, If you feel capable of checking this on your own, there`s a way to visually inspect the control yourself...it really isn't very complicated.
It will require you to remove the control from the unit and then remove the control from it`s plastic housing and look for a burnt solder contact on the printed circuit board.
The culprit will 99% of the times be one of the pins from the heater relay,
**Flip this over and inspect the solder joints, it will be obvious when you see it.**
This ones new, but it's where to look...
...hence the unit sit`s and takes longer & longer to finish because it can`t heat to advance or unless the 2 buttons for "cancel" are pressed...or takes a long time as I mentioned and eventually display's "1" on units with a display and usually very poor cleaning as a result.
You can also run the unit through a regular or econo cycle ...any cycle with the exception of rinse & hold, and with the door panel removed place an ammeter on the gray/black wire it should draw 11 amps during the wash cycle...after it fills and the flow switch indicates it has adequate water to engage the heater.
i.e.
**My Opinion - if you or someone you know is proficient at soldering, a lot of times it can be remedied by simply repairing the solder...but it has to be done well...or it will not last, although Bosch recommend`s replacing the control and I don`t pretend to speak on there behalf nor do I profess to know better. This is just my experience (it work`s) and my opinion (why buy new if one can repair ?)**
**Please disconnect the power or turn off the breaker before attempting any service to the dishwasher.**
If you do not feel comfortable attempting this service, call a local pro, preferably one familiar with Bosch/Thermador/Gaggenau/Siemens, to service your machine.
Hope this answer`s your question, let me know if I can assist you further.
Thank`s for visiting "FixYa" for your repair inquiries. Please take a moment and rate this solution to it's helpfulness.
Good luck.
Regards,
Macmarkus :)
SUDS DETECTION
During Drain Routine
During the Drain Routine, the water level is checked continuously. Normal drain will occur until the
pressure switch senses no water in the wash tub and there is no foam (suds). The drain pump will
operate an additional 15 seconds after the pressure switch reports no water or foam.
If the drain routine operates for four (4) minutes and the pressure switch senses any foam (suds) in
the wash tub, the Central Control Unit will start the "Kill-Foam" Routine. (See description of this
Routine below.) After the Kill-foam Routine is concluded, the Drain Routine will restart. If, after
four (4) minutes the pressure switch still senses foam in the wash tub, the Central Control Unit will
go into Failure Mode. The digital display will show, F02.
During Spin (Extract) Routine
During the Spin/Extract Routine the water level is checked continuously. If, during this routine, the
pressure switch senses the presence of foam (suds) in the wash tub, the Central Control Unit will
stop the drive motor and the basket will stop spinning. The electronic control will count the number
of spin repetitions that are attempted due to foam (suds). There are a maximum of three (3)
attempts for each Spin/Extract Routine.
Kill-Foam Routine
1. The Remaining Time counter is stopped.
2. The digital display shows Sud.
3. The Drain Pump is turned OFF.
4. The Central Control Unit will fill the wash tub with 1 gal. (4 L) of cold water.
5. While the tub is filling the basket will tumble 1 sec. ON/15 Sec. OFF.
6. Once the tub is filled, the drive motor will turn OFF and the basket will rest without any
movement for five (5) minutes.
7. After the five (5) minute rest, the remaining time counter will restart and the digital display
will show the remaining time left in the routine.
NOTE: If the Kill-Foam routine was initiated during a Spin/Extract Routine, the tumbling action
will be reduced to a cycle of 3 sec. ON/13 sec. OFF. If, at the end of either the Drain or Spin/
Extract Routines, a suds condition still remains, the digital display will show Sud.
Sud will also be displayed for a short period at the end of a cycle, if a Suds condition was
detected during the cycle. This will alert the consumer to reduce the amount of detergent in
subsequent uses.
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