My dishwasher made an unusual noise and the drain motor operates with the door open. The normal control buttons do not seem to have any effect on the operation. Can you help us diagnose the problem? I noticed some water under the assembly. Is the pump assembly or seal bad? Thank you.
Answer Hello Carol,
The Bosch dishwasher has a moisture sensor, (flood sensor), in the bottom assembly that will shut off the units' ability to do anything but drain out. The drain pump will run as long as the moisture is sensed and nothing else will work on the unit until the moisture under there is dried up. Normally what I see in this case is a bad water inlet valve 00425458. Occasionally, there will be a leak around a hose or seal but this is a situation where a technician has to "clamshell" the unit to gain enough access to locate the leak.
Since the water inlet valve is the most common failure, I would change it before calling anyone for the more extensive repair. Also, while the old water valve is out, before you install the new one, I use this opening with a towel or paper towels to dry up the water that is in the base already. Doing so will enable the unit to operate again. You can, if you desire, leave the water valve off for a day or so with a fan blowing into the base to evaporate the moisture. This takes a while if there is water puddled in there so if this is the method you want to use, wick the majority out with the corner of a towel then use the air flow method to dry out the remaining moisture.
Water comes thru spray arm (mainly the bottom, very little thru top) but not enough force to spin them. Pump also sounds noisy. Do I need a new "recirculation" pump or just an impeller kit?
Answer Hi Jan. Yes, you will need a recirculation pump rebuild kit. Part # is 00167085. Make sure the wash arms jet holes are unplugged with a pick tool. Make sure the drain hose is not clogged at the sink end and the sink also. Thank you.
My dishwasher fills with water and drains at the end of the cycle, but is not spraying water. It is not making any unusual sounds. Would you think this circulation pump repair kit is what I need? Does it come with instructions?
Answer Hi Kraig. Is your wash arms jets plugged? Flush them out under the sink, dislodging with a pick tool. Is the filter clean? Remove all from the top of the motor and clean filter. The circulation pump impellor may have stripped on the shaft. This part # is 00167085. Thank you.