My lg squeals badly when it is filling up? any solutions

If the water line is copper tubing, it rattles due to action of the fill solenoid.

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most of the time it is the water pump is going bad. It squeals real loud.

The only solution would be to replace the water valve. You will need a qualified technician to help you.
Good luck

Hi just read your posting.Now what temp of water are you selecting for the wash cycle,is it warm, cold, or hot.Try this,Select hot fill then select cold fill and please reply on whether the squeal stops on either hot or cold fill.Looking forward to your reply.

You are right! The valve is bad not opening all the way. Get the model # and go to PCAPPLIANCE.COM and order a new valve. Two screws in the back and you slide the top back and up to get it off. Then you will see the valves.

Is there a faint buzzing or humming noise coming from the water-inlet valve? (The water-inlet valve is the device on the washing machine that the fill hoses are attached to.) If you can't hear anything, the water-inlet valve may not be getting any power. If you can hear some noise and there's water present, you may need to completely replace the water-inlet valve.

Sounds like too high water pressure, could also be dirt in fill valve / faulty valve. Good luck

Have you checked your hoses for a leak? We could pin point which hose was leaking by trying all cold, then all hot...although changing both at the same time and on a routine basis is a great idea.

This means the electronic water valve has gone bad and will need replaced by a technician. Hope this helps, please rate my solution.