Water Hammer and Washing Machine

Hello Everybody on this Forum. A few days ago I installed metal braided hose to the hot and cold water faucets of my washing machine. I inadvertently did not open up the cold faucet all the way, and since then, I have done 2 loads of laundry.
I am now experiencing Water Hammer when the washing machine operates. It has not occurred before this ever. What are my options at fixing this. Will running all the faucets and flushing the toilet a few times assist in releasing that air? Will an arrestor work? What are some options before further damage occurrs?
At the same time one of my other bathrooms is currently in the midst of a remodel and no bathroom activity has taken place there in some time.

Any advice or recommendations will be appreciated and considered. Thanks for your time and help.

Sincerely,
A plumbing system in need of some help.

AT least a couple companies sell screw on hammer arrestors especially for the washing machine. they cost about $12 each at the big box stores. No tools required, just remove the hose, install the thing, then reattach the hose. better hoses might also fix it.

Thanks

Thanks for the advice. I am going to return to the original rubber hoses I have and when I have time, upgrade to larger metal braided hoses. Thanks again.

The washer should have the hammer arrestors anyway.

Old black hoses may not have hammered, because they may have been expanding with the back pressure of the hammer.
Old hoses burst occasionally and cause water damage.

Or, it could be something as simple as opening up the valves all the way.
You may have a loose washer that is fluttering as water goes by.
Does it hammer as it fills, or when the water shuts off.