Electric Water Heater Overflow Pipe Constant Drip: Causes and Solutions

When it comes to electric water heaters, one common issue that can arise is an overflow pipe constant drip. This can be caused by a variety of factors, including increased water pressure, faulty float valves, or overused washers.

In some cases, the vent pipe from the immersion tank on the first floor landing may discharge into the cold water tank at a constant drip, rather than flowing freely. This is often due to a faulty ball cock that needs its height adjusting or a leaky valve.

However, in other instances, the overflow pipe from the cold water tank in the loft may be constantly dripping, even when there are no apparent leaks. In such cases, it's essential to investigate the cause of the issue to prevent further damage and ensure the system is functioning efficiently.

One potential cause of a hot water system springing a leak is a faulty pressure relief valve or a damaged tank. Additionally, loose pipe fittings can also contribute to this problem. Fortunately, in most instances, these issues can be easily resolved by tightening loose connections or replacing faulty components.

In some cases, the issue may be related to the furnace itself. For example, if you have a high-efficiency furnace (90% efficiency), condensation will arise due to the addition of the second heat exchanger. This is why it's essential to ensure that your furnace is properly installed and maintained to prevent these issues.

In terms of troubleshooting, one common cause of an overflow pipe constant drip is increased water pressure in the tank. When there is increased water pressure, it can force the water out of the overflow pipe. To resolve this issue, you may need to partially tighten the inlet valve to lower water pressure.

Another potential cause is a faulty float valve or overused washer. In such cases, it's essential to replace these components with new ones to ensure proper functioning of the system.

In conclusion, an electric water heater overflow pipe constant drip can be caused by several factors, including increased water pressure, faulty float valves, or overused washers. By identifying and addressing these issues, you can prevent further damage and ensure your hot water system is functioning efficiently.

Electric water heater overflow pipe constant drip