Flexible water supply tubes are the most common cause of leaks above the water heater since it is common for these tubes to fail long before the water heater is ready for replacement.
Why is my water heater leaking.
Do not attempt to disassemble your water heater and perform internal repairs.
Internal tank leaks can not be repaired and the water heater will need to be replaced.
When you see water coming out from the water heater release valve there are two most likely causes.
If your water heater is leaking from the bottom of the tank it suggests that there s a serious internal problem.
The bottom of the water tank.
Water heaters can leak due to a number of problems including loose valves excessive pressure in the tank or issues with the pipes that connect to the unit.
As discussed above when sediment builds up in the bottom of a water tank for years and years it will eventually corrode through the bottom of the tank and begin to leak.
The relief valve is working the way it s intended and water drained to reduce the pressure inside the tank.
Fortunately and to your relief sometimes when your water heater is leaking from the top it may not be because of a malfunctioning or defective part.
If the valve itself is bad it can be replaced in several steps.
There s a problem with the valve such as a faulty seal and the water is unintentionally leaking.
If there is insulation around the supply tubes remove it so you can inspect and replace the tubes if necessary.
Rain water when rain water travels down the flue vent pipe of a gas water heater it can collect on the top of your tank.
A leaking drain valve can be identified by moisture or water dripping either out of the drain opening or around the valve itself.
Water may also leak from the pressure relief valve on the water heater.
This could be caused by either a faulty valve or a high pressure situation in the water heater.
Well it means that your water heater has dangerously high pressure inside the tank.
And if your water heater is more.
Your tpr valve located at the top of the water heater automatically opens to discharge water when it senses too high pressure levels.
It water appears to be leaking from the valve try tightening it with a wrench until it is snug but be careful not to over tighten it.
One of the most common causes of water heater leakage is a loose drain valve.
Lastly the most common cause of a leaking water tank.
Here are a few other possible causes.