OP - I was a tenant for a year and the integrated dishwasher broke down. I expected the LL to just come out and fix it, my opinion was that that was the job of renting - no hassles as the LL has to repair items in his property.
It turns out that if the contract states unfurnished then anything that is in the property (even if in the inventory) is just an 'extra'. Items on the inventory are purely to ensure the tenant doesn't walk off with them or break them and then not say anything. My inventory included plant pots in the garden!
We had to pay for for our dishwasher to be fixed, which stuck in our throat! We could not replace as the kitchen was so old that the integrated dishwasher was not be replaceable!
For example, we also had curtains across the lounge patio doors and these were really really old - but on the inventory. The plastic curtain swish/pole was brittle through age and after us being there a few weeks it broke. As we rented the property unfurnished, we had to buy a new swish and then decided that we didn't like the curtains so bought a pole and curtains we did like. At the end of the tenancy we put up the new swish and old curtains and took our pole and curtains with us to the next property.
I do feel that your contract terms of replacing/repairing any electrical items is unfair. 'Electrical items' is a very wide term - does this include the shower or the boiler? How old are the electrical items in the house?
From my perspective at the time I felt the LL was having his cake and eating it - getting rent but no responsibilities of having to fix things.
As you intend to be there a long while, I would suggest trying to ask for the contract to be clarified retrospectively regarding listing the electrical items that you are expected to repair/replace.
In order to meet your current terms, a second hand washing machine on Ebay or Preloved may meet the requirements. A new washing machine may start at £400 but a second hand one may be £50!