If your hot water tank isn’t heating there can be a number of reasons. One of the most common is due to the immersion heater within the hot water tank and its thermostat. You might also want to consider pressing the reset button. This usually located near the thermostat. If you need expert help don’t hesitate to contact 24 Hour Plumber. Our experienced plumbers will assess the situation and determine the best course of action. You might need hot water tank repair or a hot water tank replacement.