I have just been informed that to access the menu on the 420 you hold down '9' for 5-8 seconds so it is different from 430 and 450...

Okay thanks, if I press 7 and 9 nothing happens

http://img110.xooimage.com/views/6/4/8/husq-7-9-55d3228.jpg/

If I press 8 and 9 I get this!

http://img110.xooimage.com/views/6/a/f/husq-8-9-55d3224.jpg/

When I press 7 and 9 nothing happens

https://www.dropbox.com/home/Husq%20420?preview=Husq+7+9.jpg

I get this when I press 8 and 9

https://www.dropbox.com/home/Husq%20420?preview=Husq+8+9.jpg

Yes I have downloaded the manual it is very helpful thank you

Thank you Busa.

I have tried but again nothing happens, should I be on the menu screen with timer, cutting height, security etc when I press 7 and 9? Nothing happens when I try that.

I was going to add a photo of the screen but I can't work out how to add an attachment?

Hello everyone, I am having problems with my 420. I had similar problems last year which were repaired under warranty. As the weather has been good I switched on my 2016 420 yesterday but it keeps stopping and it says 'LIFTED'. I sometimes get 'COLLISION ACTIVE' as well so I am not sure what is real...