Try Andrew on 07961 757425. He is reliable and very good and can repair all white goods.
Also check other recommendations via the tag added under your post.
I've used Glotech a few times. Price quoted on phone and turn up on time...
We used this guy for ours, who was good: https://www.checkatrade.com/TronixRepairsServices/
Hi did you find anyone good in the end. My dishwasher has started leaking so I need to get someone to fix it. Would appreciate contact details if recommend them