Hello My name is Ian ~ I am not on the site constantly so please be patient whilst waiting for responses to you queries
Can you tell me, with the castors down is the unit level?
OK can I assume that you are only winding down the legs so that they touch the floor not winding them down so they lift the front of the f/f?
I have tried for the last couple of days to get information as to how you might solve this problem but the contact details for Kenwood large appliances are unobtainable, who did you purchase this appliance from ?
Leave it with me, as a fridge engineer I find that somewhat unusual, I am working in Currys this afternoon so will pop around the front and have a look see if they have one on display and check this out for you ~ Ian