Bosch 9925 - water comes in and drains - but not enough pressure to make water comes out of rotating arm more than about 6 inches. Do I need a new pump? I cleaned all holes and filters. How do i access the pump - through the inside of the machine? Thanks. LDS

With your dishwasher empty, roll out the bottom rack. The feed line for the upper spray arm runs from a pump outlet directly behind the lower spray arm spindle. This tube runs up the back wall of the dishwasher and mates with the upper rack when it is pushed in.

This feed tube simply snaps into place in the bottom of the machine. It is a high pressure line that makes an immediade 90-degree bend towards the rear of the unit. They have a tendency to pop out. When and if it does pop out you get almost no water coming out of the upper arm and you lose effective pressure in the lower arm, too. The cure is to push that feed tube back down firmly into the port until you hear it snap into place. While you have the lowere rack out it is a good idea to clean the intake screen out and check for any debris in the intake well.

Check your fine screen in the water inlet valve, do not remove it.. Clean it and you should be fine.

Check the exit hose behind the machine, the one going into the standpipe. This should be around 3 feet up from the ground level, and then into the standpipe. It shd be about six inches into the standpipe & not too tight into it.

This hose may have fallen off, the reason why your water drains away, instead of collecting in the machine to commence a wash. The next to check is the thin tube coming up from the pump area to the pressure switch. Maybe this has come loose or there is a puncture in it.

Pl give me a good rating for the free help, if helped ie.

water coming out of horizontal holes is not enough to rotate arms remove them and check the outermost holes these are angled so they rotate the arms they will be blocked even though all the others are clear.

there is insuffient water in appliance it needs 32 litres to wash properly and have enough pressure for wash pump to drive spray arms round this is quite easy to fix but messy, remove base panel plastic and metal one behind this exposing a plastic corrugated hose this will be blocked with fat limescale etc and needs cleaning it is a push fit with o rings pull out clean pipe refit and all should be well.also check holes on ends of spray arms are not blocked as they will not rotate but water will still come out

hope this helps

Replace the pump, if you go through the trouble of repairing the pump and all the disassembly and then more problems will probably ensue. As far as location it is usually located under the washer. Accessed through the front service panel. Make sure you follow all safety procedures #1 being unplug the washer or turn off breaker prior to proceeding.

open machine when running and check both spray arms rotating - you will get a bit of water out. if spray arms not rotating, usual cause is debris in the arms. the spray arms only rotate by water jetting from angled jets at the end of the arms. take them out and make sure all debris removed

These arms spin based on water pressure generated from the washer itself.

Run the washer. As soon as the washer is full of water and the wash cycle starts, open the door and verify that you have at least a couple inches of water in the machine. If there is not enough water in the machine, the pump will not be able to provide pressure. If this is the case, the filling sensor is malfunctioning and will need to be checked.

There's a pump that provides water pressure. It's at the bottom of the machine beneath the lower rotating arm, probably beneath additional plastics. Remove these two items and verify that there is no debris blocking water from reaching the pump as if this is the case, water pressure cannot be generated.

Good luck... let me know what happens, and please rate accordingly.

decrete, you want to get down to the chopper and screen. If the screen is plugged up with gunk there won't be enough pressure to reach the top spray arms. Check out the posted pics. Remove the lower spray arm. Rotate the rear feed arm to the right until it unsnaps from the tube going up the back. See the 4 torq screws holding the filter on. Remove them. Lift the filter up. Now you will see the chopper inlet cover. 1 torq screw holding it in. Lift it up and there's the chopper and screen. Catriver..post back

the spray arms are rotated by water coming out of angled jets, this water being forced round by the main circulating pump. suspect it may a fault with this pump