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Re: Wash Cycle Noise
You can chat with me now! fault may be more simple than replacing the whole circ pump. it is probably the pump capacitor which is a cheap part. no need to buy as a bosch spare - you should be able to find a capacitor of the right value from a good elec spares shop. value is printed on the capacitor
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Remove the panel at the base of unit below door you should find the tech sheet which will tell you how to place unit into diagnostic, on the spray arms make sure the small holes are clean below the lower spray arm is a screen make sure it is clean not covered or cake with calcium build up if it clogged water cannot pass thru to enter the wash pump you can also remove the screws to take the upper halve apart to inspect the wash pump for any obstruction it is possible you could have a bad motor control or both you didn't mention after the unit fills do you hear the wash pump hum or click
Hello ddux97 - Often this occurs because either not enough water is being pumped to the
spray arm or in other words the full flow of water is not making it to the
upper spray arm. Will the spray arm rotate freely? If it does not, then
you might have to remove or replace the spray arm assemblies since it is
possibly damaged. Confirm that the drain hose is strapped up properly under the
sink to prevent the water from siphoning out during the cycle. If issue
persists, I ask that you please follow up with a comment on the post, at your
convenience, to advise if further troubleshooting is needed or if the unit's
status has changed successfully.
Hi Kenneth Cho - I will suggest verifying that there is enough water pressure coming into the unit. Is the unit making a grinding noise? If it is, then the dishwasher seems to have a defective drain motor. When was the last time the filter was cleaned? Do you noticed if the spray arm will rotate freely or if it is damaged? If so, you might have to remove and replace the spray arm assemblies. If any proves to be ineffective, it could possibly have a communication problem coming from the main control board, I would suggest contacting a professional technician to diagnose the unit accurately.
On this particular model you have to go thru the top section of the pump. Remove spray are and using torx crew driver remove all the upper section to get to the piece of plastic. Don't worry you can do this and not cause any leaks.
your model is pretty new. just so you know your warrenty is 1 year parts and labor. 2 years on parts. it should not cost that much money.
there are two components that start before the circulation pump.(wash noise you hear)
first sounds you hear will be the drain pump. usually rattling noises if something is in it but it can make a hum noise if something is jamming the drain propeller up. which is accessible with a T20 torx driver. take the filters out and the mesh filter. and unscrew the screw in the base towards the left. pull out whatever is lodged.
the other humming sound can come from the next component that activates is the watervalve. make sure you dont have a kinked water intake line. otherwise its a bad valve. i have had to change a few of those water valves out already but not for a hum noise on your model. you have a new style water valve. when brands make new parts we get problems fast sometimes..
The most common cause of the hum/grinding sound, and often poor cleaning - is a blocked filter or debris stuck below that filter.
Pretty easy fix:
Get a phillips screwdriver near by. Pull out the lower rack (the upper rack can come out if you pull the little gray thingeys on the front of the upper rails.)
Remove the lower spray arm -- just pull it straight up.
Remove nine silver screws from the sump area that holds the filter down. Pull the filter up and out. Rinse the filter as best you can.
While the filter removed, with a flash light inspect all over the sump area - looking for stuff that should not be there and clean it out. Watch out for broken glass!
Replace the filter, screws and the spray arm. Fire it up and check your results!
faults not related i would think
is there a low humming noise when supposed to be wsahing?
if so this is the motor capacitor faulty in all probability. this is a cheap part and easy to replace.
otherwise, check if power to pump. if no power then points to a module fault. if there is power, points to a motor fault