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@Chopsicle
Any recommendations for an electrician/electrical engineer in SE London? Got an annoying problem with an element-heated immersion tank. Every six months the thermostat trips, then trips more frequently until it doesn't work at all.
The consumer unit and heating timer was replaced relatively recently (two years ago), heating element also replaced, and thermostat (the 18" rod type) replaced frequently, and I'm stumped as to what's causing it. It's a 60's tower block, with the wiring inside a steel conduit which takes the earth. The immersion tank wasn't an original feature, so perhaps related to a higher wattage element, drawing more energy than it was originally specced to do. Lights in the flat flicker very occasionally, but nothing that seems linked with the tripping of the thermostat, and consumer unit immersion ring never trips either.
Looking for someone that would like to get to the bottom of this!