voltage

Hi In case it helps anyone else, I just wanted to post about an unusual issue I had with error code fd showing on my Viessmann Vitodens 100 WB1B 35kW system boiler. After much head scratching it turned out the problem was that our mains voltage was too high (257V at the time) and the boiler...

The 15 year old 50 Amp DP Pull Cord ceiling Switch for my bathroom shower stopped working this morning. On internal inspection a crack ran through it. I tested the live and neutral wires and found both the black neutral and red live wires lit up my live wire detector screwdriver. Should there be...

I recently bought a 12V Halogen light fixture that takes upto 5 20W G4 lamps. Inside this fixture is an electronic transformer that supplies 12V AC current to 35W-105W load. Looking for LED bulbs, I see most of the 12V AC LED G4s are 3-5W, which combined together wouldn't exceed the minimum 35W...

Hi folks, I am at my wits end with constantly replacing bulbs in my house. The reason they blow so quickly is, I think, due to voltage fluctuations. I suspect all circuits are affected, but I notice it in the lights as they all flicker (together) from time to time (every day) throughout the...

Just teared down a cheap USB power supply from a USB hub, and to no surprise :rolleyes: the isolation between the mains primary side and the SELV secondary side was suspicious at best. Not only did my non contact voltage detection stick react to what should have been the separated isolated 5V...