Try Lynne's Electrical on Walworth Rd - they came to check my machine a few years ago, showed me the burn marks where the motor had blown and recommended a new machine. I was skeptical and googled the part number - they were right, a new machine was cheaper (!). They helped me find a new one which was delivered & installed promptly and the old one taken away. While I ended up with a new machine rather than a repair I felt they were honest and gave good service. I recently bought a new fridge and had another good experience.