Bosch dishwasher leaving food stains

SOURCE: bosch shu8805 (2002 model)

Was Drain solenoid checked? Beneath some dishwashers, there's a timer-activated drain solenoid (an electro-magnetic coil) that opens a drain valve, to drain the wash water through a hose and out to the house's plumbing waste system.

SOURCE: Bosch dishwasher

Although I previously posted with the same problem of a film on the dishes after cleaning, I did find a section in the owner's manual which solved my problem. Lift up the rinse aid cap on the inside door - the factory setting is on "4". The rinse aid works in conjunction with your local water, which has variations in it's hardness or softness. When your dishes are streaky, lower the rinse aid setting to 1 or 2. If your dishes are spotted, raise the rinse aid setting higher.

SOURCE: Lower spray arm does not spin on my bosch dishwasher

How to Check the Spray Arms Home > How To > Appliance > Dishwasher >Check Caution: Please read our safety information before attempting any testing or repairs.
The pump/motor assembly pumps water up through the spray arms. The force of the water cause the arms to spin and spray the water and detergent mixture into the dish and glass racks. Some dishwashers have just one spray arm at the bottom in the tub, others have a second spray arm under or over the glass rack. Some dishwashers also have a spray tower that rises up out of the lower spray arm to concentrate an additional blast of water.

To access the bottom spray arm, remove the bottom dish rack. Reach in and spin the spray arms. They should spin freely. Lift up the spray arm from the end. There should some play in the arm allowing you to wobble it up and down. Inspect the seams of the arms for splits. If water sprays out of a seam, the dishes will not receive an adequate spray for proper cleansing and the force of the water directed at the door may cause leakage.
The lower spray arm may also have a spray tower. If it does, pull up the center part of it as far as it will extend and let it drop. It should lift and drop smoothly. You can also unscrew the tower by hand to inspect the interior for foreign objects that might clog it.
Remove the upper glass rack as necessary to access the upper spray arm. Repeat the steps above for the lower spray arm. The upper arm may not have as much wobble as the lower arm.
The water source for upper spray arm on some dishwashers may be through a tube which mates with the spray arm when the rack is pushed all the way back. Make sure that the rack is properly aligned with the water supply tube.
If necessary, the spray arm can be removed for cleaning or replacement. Unscrew the spray tower (if any) by hand and remove the bolt (if any) in the center of the spray arm. Otherwise lift and rock the spray arm until it comes off. Keep any washers in the same order as they are removed. To clean, soak it in warm water and rinse with a vigorous spray.

SOURCE: My Bosch Dishwasher doesn't clean

Check the following to address this issue--


1. No water
Make sure you get water to the dishwasher. Check to see if the water shut-off valve (located under the sink) is open. If you get water to the dishwasher, but there is still no water inside during the fill cycle, the problem might be with a faulty water valve (located at the bottom of the dishwasher, behind the kick panel, on either side), in which case replace the water valve.

2. Not enough water
If there is not enough water, the dishes would not get cleaned. This could be caused by a partially closed water shut-off valve (located under the sink), or a faulty dishwasher water valve (located at the bottom of the dishwasher, behind the kick panel, on either side).

3. Clogged spay arms
There is usually two, sometimes three spray arms in a dishwasher. Make sure there is no debris blocking the holes inside each spray arm.

4. Water temperature is too low
To get the best results, the water has to be at 120 degrees Fahrenheit when entering the dishwasher.

5. Not enough soap
If you only fill one part of the soap cup, try adding soap to both parts.

6. Smoky film on dishes and glasses
This problem occurs due to excessive calcium build up inside the dishwasher. Try cleaning you dishwasher using a dishwasher cleaner.

SOURCE: Should I buy a Bosch?

I've owned a Bosch dishwasher for over three years and loved the quiet operation and the hidden heating elements. However, now that one of the motors/pumps is grinding noisily, I find that Bosch support is limited to sending a local tech out to replace said part for half the cost of the dishwasher, more than $400. Bosch will provide no manuals or tech assistance other than this.

This will be the last Bosch product I ever own.