If you’re a homeowner on benefits and your boiler is inefficient or broken, we will replace or repair it for free. Please click below to play the video! A primary school’s maintenance team was faced with no hot water for the school the 25 year old boilers had failed, a fast solution was needed. It could be that you have lost your “air cushion.” to get it back, turn the water supply off at the main valve turn on all . If you are having trouble with a particular toilet or faucet, turn.