>>>However you have signed it,and you will be liable for the white goods covered by the agreement
Except for the fact that the document you signed would seem to be invalidated by the provisions of the Unfair Contract Terms Act 1977!
You presumably rent the property as 'furnished', which means that you're paying a supplement (over what you'd pay for an 'unfurnished' property) for the use of (among other things) the fridge, freezer, oven and washing machine. That places a duty upon the landlord (not you!) to ensure that those items remain fully available for your use (i.e. in working condition).
Of course if you were to kick a hole in the fridge door, or rip the washing machine's door from its hinges, you'd have to pay compensation but that situation would apply irrespective of whether or not you'd signed anything relating to those items. Normal 'wear and tear' repairs are the landlord's responsibility, not yours!