Before you start trying to remove the hose, be sure to shut off the water supply to the washing machine itself. It should be obvious, but it’s worth repeating.

The adage "out of sight, out of mind" can cost you dearly when it comes to washing machine water-supply hoses bursting. Replacing Washer Hoses Can Prevent Flood Disaster - Los Angeles Times ...

Since the water supply to a washing machine is always on, a plumbing disaster is waiting to happen if the hoses fail or leak - and they may if they're old. A leak is bad enough, but if both the hot ...