Hi Jayzmummy - yes you do have to reapply. I haven't done so after getting an award last year.
When the assessor came to the house, she left a sheet with pics and details of washing machines and told me that if I ever needed one, not to buy one but to apply for one.
When I called as mine broke, 11 months later, I was told very curtly that they would only give me one within 6 months of my claim. I then got a letter which was very short and actually quite rude IMO. I haven't reapplied this year, although I could do with some help, because of this.
Stingo, sorry not much help, I remember sending off my payslips etc with the forms and then receiving them back quite quickly. Altogether, it took nearly 6 months as they'd lost my forms, and then fast tracked me. I then had the assessor round and she helped me fill in my dla forms - although not very well, admittedly as it was turned down.
It's all quite painless, and the assessor I had was very helpful.