Hot End crashed into bed after resetting z height

[jram]

Hi All,
I just reset my z height as I noticed it needed to be a bit higher. While trying to run the first print after doing this the hot end came down and skipped across the glass until it knocked an arm off. I did notice that the LCD screen said that my height was 790 or so. Now when I try to home all towers it just goes up an inch or so and quickly back down without hitting the end stops. It's doing this about 3/4 way up the towers. I'm thinking I hit something twice but can't quite figure it out. It's been running flawlessly for hundreds of hours (until I did this). What should I do get the towers to home and recalibrate z height?

[geneb]

Go through the z-height setting process again. That should straighten it out.

g.

[jram]

Go through the z-height setting process again. That should straighten it out
g.

Thanks Gene, that did the trick.

[geneb]

You're welcome!

g.