PDW7800 lower spray arm making clunking sound

You need to press them in. Do it soon. Otherwise you are risking serious outcomes because it is not safe to drive.

No-one posted a solution. I contacted the original solution poster who was very helpful.I hope this helps someone else better understand their refrigerator problem and get on the right track. Staffgage.

Tweezb wrote:
"you are right that cleaning under your refrig wont get rid of a "compressor knocking" sound. what it might do is to lower the amount of heat from the condenser coils and thus cause less pressure and stress on the compressor making it run easier and less likely to bang or knock when shutting off.
if your coils were very plugged with lint and you have cleaned them, that will help but it wont "fix" the problem.
inside the compressor is a motor and a pump, the motor is supported by 3 springs and they can stretch or break causing the motor to hit one side of the black outer can and cause the noise.
that may be too technical, but its not something that can be repaired without replacing the compressor, at a cost of 700-800 bucks. most would not pay this as its not worth putting that amount of money into an older refrig."

"think that you are hearing either a freon related sound or even just the sounds of the unit going thru defrost.
how often do you hear the noise? just maybe once a day or is it everytime the unit shuts off?
either way i would rule out the ice maker and water system as when the "shut off arm" is up then it is off and wont make any noise, or ice.
keep the i/m arm up and then listen for the next day or two and try to narrow down when it makes the noise and frequency you hear it and then get back to me.
it may not even be a problem, just normal operating sounds that cant be changed."

You will likely have to remove the pump motor from underneath to solve your problem. Try removing the lower spray arm assembly down to the deck and check the pump impeller for noises. Make sure to note the position and placement of all parts removed. Hope this helps!

Very possible that it is a fin off the impellers or could be a bushing

We have a PDW7800J01WW that I removed all the arms on recently.
There is a single hex-head screw that acts as the pivot at the center of the top most arm. Just remove this screw to remove the spray arm.
Be very gentle reinstalling it though as it is easy to over torque it and strip the plastic hub it screws into.

Remove the spray arm (just pull it out) and clean the "seat" with soap and a nylon bruch and se if the problem continues.

Yes!

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!
Good Luck!

Dear friend,
ngfam at you service! happy to assist!
this takes experience and tech knowledge!
You have atop of the line dishwasher and its not easy to repair this hi-tech GE Profile machine, better left to the service tech.


We sell appliances for 65 years and I recommend this nation wide Factory repair service!

Call A&E Factory Service /They service nation wide
And are available 24/7 for making appointments!

If the appliance is 10 years old or more,it may make sense not to invest any money to fix it!

Happy to assist you,
PLEASE GIVE ME A GOOD RATING BEFORE YOU SIGN OFF!

The clunking noise may be a broken weld on the drum.  Every time it turns and passes through the guide wheel supports, it makes a thunk thunk noise.  You will need to have a qualified LG technician diagnose the problem correctly but that's what it sounds like.