Part won't stop moving despite Repeat Until?

Hi, I made a script to resize a part and move another part, the problem I'm having is the part won't stop moving even though I've coded it to stop when the Position is at a certain Position, and yet the part still carries on Moving even after it's reached the position.

Here is the script:

local MDoor = script.Parent
local handle = script.Parent.Parent.Handle
game.Players.PlayerAdded:connect(function(player)
    player.Chatted:connect(function(msg)
        if msg == "Open Door" then
            repeat
                MDoor:Resize(Enum.NormalId.Bottom,- 0.5)
                wait(0.2)
            until MDoor.Size.y <= 1
        end
    repeat
        wait(0.2)   
        handle.Position = handle.Position + Vector3.new(0, 0.7, 0)
    until handle.Position.y == 17
    end)
end)

I tried using "MoveTo" but it didn't seem to work.

Any sort of help is greatly appreciated, Thanks.