That is what I thought at first, but after inspection of the contacts inside the contactor, everything is still in perfect working order and no trace of heating or carbonisation due to arcing. We've been using these contactors with the same heating elements for a very long time without any...
Hi everyone,
I'm currently banging my head trying to figure out exactly what caused a malfuction in a fairly simple design. I have a water heating system with multiple stages of heating done by a step controller and 1 stage failed after 3 weeks of operation. Each stage is protected via fuses...