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. 2605 Answers SOURCE: Hello, Welcome to FixYa. Based on your description I'd say the issue actually is with the control.unfortunately. This is commonly associated with a heating fault on Bosch built dishwashers ( various models including Bosch, Thermador, Siemens, Gaggenau, and Neff ). Since the issue is likely within the electronic timer/control, specifically the heater relay solder joint.
Bosch electronic management operating manual - Dishwashers Dishwashers Bosch Dishwasher I have just moved into my flat where there is a Bosch dishwaher installed in the kitchen.
( a faulty flow switch, ntc or heater can also cause this, but not very probable ). These are the steps you'll need to follow to resolve it or at least investigate. 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.
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. This can also manifest as a long cycle time as I mentioned and eventually display's '1' on units with a display and usually very poor cleaning, no heating ( don't be fooled by the homes inlet hot water temperature ) 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.
( this may differ from your specific model, but the same rules apply ).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. Bosch recommend`s replacing the control and I don`t pretend to speak on their 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. Thank`s for visiting 'FixYa' for your repair inquiries. Please take a moment and rate this solution to it's helpfulness.
Regards, Macmarkus:) Posted on Feb 24, 2011.
Many dishwasher problems have easy solutions that don’t require a visit from a technician. Dishes still wet. Load dishes correctly so that the water can run off freely. Regularly add Finish® Jet Dry® to the rinse aid dispenser. Increase the setting of rinse aid dosage, if necessary.
Possible faulty heating element. (Contact a technician.) General poor cleaning.
Avoid low quality and old/damp detergent. Dose detergent as recommended. Load and sort dishes to allow water to circulate. Use Finish® Dishwasher Cleaner to remove limescale and grease build-up. Food around filter.
Remove and clean filter. Scrape off large food particles from the dishes before loading.
Use normal and auto wash cycle. Use Finish® Dishwasher Cleaner to keep this vital component working properly. Cloudy glassware.
In hard water areas, avoid limescale deposits by adding Finish® Power Up™ to each cycle. Determine your local water hardness and adjust the rinse aid setting accordingly. White streaks on glasses could be surface corrosion. Avoid this by using low temperature or china/crystal cycles.
Use Finish® Quantum® with built-in anti-corrosion protection. Rusted cutlery. Avoid prolonged contact with acidic/salty food (e.g., mustard or ketchup). Use high-grade quality stainless steel.
18/10) Faded patterns on plates. Use Finish® Quantum® with built-in anti-corrosion protection. Run low temperature cycle, or if dinnerware is not dishwasher-safe, wash items by hand. Detergent residues at end of cycle. Check door of dosing chamber is not blocked by bulky dishes or large utensils. A damp dosing chamber can cause tablets and powder to stick. Spots, drops marks, and smears on glasses.
Load dishes correctly so wash water runs off freely. Regularly add Finish® Jet Dry® to the rinse aid dispenser. Use Finish® Power Up™ in each load.
Determine your local water hardness and adjust the machine setting accordingly. Foaming machine. Traces of hand dish soap on dishes. Pre-washing is not necessary with a high quality detergent like Finish® Quantum® or Finish® All-in-1 Powerball® Tabs. Rinse aid spilled during refilling, or rinse aid chamber could be leaking. High amount of protein-based food left on dishes (e.g.
Orange staining on plastics. Possibly caused by red sauce in the wash such as spaghetti sauce. Scrape items before loading or use a rinse and hold cycle.
Bleach back to original color by placing in strong sunlight. Dishwasher not draining. If the drain hose is kinked, the water cannot run properly into the machine. Make sure that a portion of the drain hose is at least 0.5m above the dishwasher’s enclosure floor. Avoid a clogging of the filter system by cleaning regularly (e.g.
Once a week). The kitchen sink drain may be clogged and it may be necessary to ask a plumbing service to remove the blockage. Odor. Food stuck in build up on the side of the machine or a dirty filter often cause odor coming from the machine. Clean filter and use Finish® Dishwasher Cleaner.