Hot water coming from the cold taps is usually due to an immersion heater thermostat failing in the ‘on’ position. Hot water from the hot water cylinder eventually fills the cold water cistern in the loft, which supplies the bathroom cold taps.

What causes hot water to come out of cold tap?

This is a common plumbing issue. Over time, the hot water pipe heats the cold water pipe, warming the water inside. Additionally, if your home’s water heater is too close to your cold-water supply pipes, you can end up with warm water coming out of the cold side of your faucet.

Why does my hot water keep running?

If your water heater is constantly running the first thing you should do is check the unit and the pipes immediately around it for leaks. Your water heater might have insufficient insulation – If the water heater is not properly insulated, it will be unable to maintain the water temperature.

Why does my hot water only last a few minutes?





Water Heater Runs Out Of Hot Water Quickly: Possible Reasons Why. As mentioned above, several things can cause a home’s hot water supply to run out faster than it should. The three most common culprits are sediment build up, a faulty heating element and a broken dip tube.