Trusted Plumbers in Horley

Immersion Heater No Hot Water A water heater that produces no hot water may not be getting power, if you had a power cut it may have a tripped limit switch, or may have one or more failed heating elements. First, check the water heater's circuit breaker in the service panel to make sure it hasn't tripped. If the breaker has tripped, switch it off, then switch it back on. We have been asked why the immersion heater is not working. The straight answer is that the culprit may be anything from a faulty thermostat to damaged elements, and even limescale build-up. solate the heater from the supply, take off the cover and then measure the resistance across the heater excluding the thermostat. Then turn thermostat up until it clicks on and measure resistance across thermostat on its own. What is an immersion heater and how does it work? An immersion heater is an electric water heater that sits inside a hot-water cylinder. It acts a bit like a kettle, using an electric resistance heater (which looks like a metal loop or coil) to heat the surrounding water. Immersion heaters are connected to their own power supply via a cable. Can you leave an immersion heater on all the time? It's better to leave the hot water heater on all the time, rather than turning it on and off. Your immersion heater or boiler will heat up hot water which is stored in a tank. If the tank has a good insulating jacket, it will keep the water hot all day, without needing to be constantly reheated.