Water overflowing & freezing in freezer

Followed instructions others posted. No need to cut any water lines, just push the white collar on the new valve, pull out line and do the same to install lines. Only issue was inlet line leaked after initial installation. It was leaking above the connection, so teflon tape wasn't the answer. Answer was to hold the line in exactly the routing place it was before removing.
It took a few days for ice machine to return to normal (as in making ice in quantity), but works like a champ now.