Question about Bosch 23 in. SHU 8805 Built-in Dishwasher
When dishwasher is started the initial drain cycle comes on. It drains any remaining water in tub, but then drain pump just stays on and never moves into fill cycle.
I read your solution to another Bosch model. I removed the inlet valve to vacuum out any water from the underpan from a "flood" problem. The pan was bone dry. I also had checked and cleaned the drain and impellers to be sure they were clear. I also tried to cancel the cyle buttons and restart.
None of these actions solved anything. I am going to test the inlet valve solenoid and check the intake filter today. I saw that checking for a stuck float may also be a problem, but I am not sure where it is. When I look back behind the inlet valve with a flashlight, I can see a small styrofoam looking donut, but it is sitting flat on the bottom.
OK Bosch Dw fans.........here is the fix if your SHX dishwasher is stuck on the drain cycle. This may save you a couple hundred bucks.......so listen up. There is a tendency for the very small float switch to STICK in the ON position, which will cause the drain motor to continuously run......and DISallow any other function to work. DISCONNECT POWER. Did I mention to disconnect power? Take off the front base cover....2 torx screws. Remove the other 2 torx screws in the metal clips that fasten the top of the DW to the underside of your countertop. NOW...carefull slide your DW out. You may have to disconnect your water and elec supply if you do not have enough slack to pull it out. Once the DW is out of the cabinet, remove the shiny metal cover on the LEFT side by removing a single torx screw. You will now see a small plastic assembly with a red plastic piece that moves up and down as it rides on a small red styrofoam float. This up and down movement engages a small white plastic switch visible with 3 wires coming out of it. You can carefully UNSNAP this switch out of its mount, and pull the 3 wire plug off of it. THere is a small square blue plastic tab that is supposed to easily slide in and out of the switch. If it is stuck IN, you can sometimes tap the switch and the blue tab will pop out, which is what it is supposed to do without tapping it. You can carefully with a knife blade separate the case on this switch and note the way it comes apart. Clean out any micro debris out of the small channels that the blue tab ride up and down in. Then set it in the channel while holding up the small switch tab that rides on it and see if it slides up and down without sticking! I like to take a piece of wax paper and rub in on the channel and blue tap to provide some lube for the switch to slide easily on. Now, put the switch back on and manually move the red plastic assembly up and down while you are watching the blue tab. The tab should ride up and down with the red assy. If not, buy a new switch. Google the # on the switch and order one. If the tab slides up and down, put things together in reverse order and give it a try. Hope it works for you. This should take you an hour give or take. Take the $200 you just saved and have a night out on me. ........so even though these German Appliances have a good name because of past reliability, the american tendency to value engineer them with plastic parts to reduce costs and increase profit.........just cost you an hour of your time. Will we ever learn.? ......if it ain't broke, value engineer it until it only lasts through the warranty period so you can then collect service and parts blood money from your fellow american.
Posted on Jan 11, 2009
Way to go!
The plastic lever / switch assembly may have got hung up. Or the flood switch (the microswitch activated by the styrofoam float) may be the problem. If this happens again, I recommend replacing both, because it's a lot of labor to do one, and not much more to do the other.
Let's hope that doesn't happen!
Posted on Apr 09, 2008
Please try this at your own risk of course!
I had exactly the same problem. The DW just wouldn't stop draining. I read the description above, about the plastic parts.
BUT before opening anything, I pulled the DW out a little and then shook it up and down.. not too much, but enough to get the valve system unstuck!
Lo behold - the DW is now running like before. Again, please try at your own risk.
Posted on Aug 11, 2015
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Posted on Jan 02, 2017
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