Question about Bosch Evolution 300 SHE43M05UC Stainless Steel Built-in Dishwasher
Tub will not fill and go through normal cycle. Machine just idles in drain mode constantly. If you add a pan of water to the tub it will just pump it out and continue to sit and drain. Have replaced the solenoid fill valve but did not solve the problem. Fill valve never seems to energize so it seems to be frozen in the drain part of the cycle.
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
water in the bottomof the base remove side panel and dry out the bottom base . the float is up . thats why its in drain mode. bosch old tech speaking.
Posted on Mar 03, 2010
SOURCE: Got a lound buzz type
You may have dislocated the connection that controls the AquaStop circuit.
This is linked to the inlet hose. Either the connector linking the inlet tap to the inlet valve is loose or the float switch has triggered.
Check the diagrams on this site. The float circuit is shown in the base assembly.
I hope this helps. In case you want more details I will need the full model number of the dishwasher. The 5-6 additional characters after SHU53.
Posted on Jan 25, 2011
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