boiler switching off

Hay lovelies To save me getting the Vim powder out, does anyone know of a unlabeled brushed steel with white inserts cooker switch & socket. If labelled with boiler, even better.

Hi all, Lots of info below and then advice on what to do, please: The boiler is a vaillant ecotect plus 415, open water system, water tank in loft, cylinder in bathroom. There are 7 radiators in the house. Previous issues with the boiler: loud kettling which was reduced by a Fernox F3 cleaner...