Quick Answer
If your AO Smith geyser is leaking water, the most likely sources are the pressure-relief (safety) valve dripping, loose inlet or outlet pipe connections, a faulty drain valve, or in worst cases a corroded inner tank. A few drops from the safety valve during heating are normal; a steady leak or water pooling under the unit needs prompt attention.
This guide identifies where the leak is coming from and how to fix it safely. If the leak is paired with heating trouble, also check our guide on why a geyser is not heating water.
Common Causes
- Pressure-relief valve drip – releases excess pressure during heating; constant dripping means high pressure or a worn valve.
- Loose pipe connections – inlet/outlet joints loosen over time or were not sealed well at installation.
- Faulty drain valve – a worn or partly open drain plug seeps water.
- Corroded inner tank – rust pinholes after years of use, especially in hard water.
- Damaged gasket – the element flange gasket can perish and weep.
Step-by-Step Fixes
- Locate the leak: dry the unit, switch it on, and watch where water first appears – valve, pipe joint, or the tank base.
- Tighten connections: gently snug the inlet and outlet fittings and wrap fresh thread tape if a joint is weeping.
- Check the safety valve: occasional dripping during heating is normal. If it runs constantly, fit a pressure-reducing valve or replace the safety valve.
- Inspect the drain plug: ensure it is fully closed; replace it if it seeps.
- Tank base leak: water from the bottom usually means tank corrosion – this is a warranty/replacement matter, not a DIY fix.
For replacement valves, gaskets and thread tape, browse the options below.
Browse Geyser Valves & Parts on Amazon India ↗
Prevention
- Install a pressure-reducing valve if your supply pressure is high or pump-fed.
- Flush the tank yearly to slow internal corrosion in hard water.
- Use thread tape on all connections during installation.
- Inspect the safety valve periodically and replace it when it stiffens or drips constantly.
When to Call a Technician
Call an authorised AO Smith technician if water leaks from the tank base, the safety valve keeps running after replacing it, you see rust-coloured water, or the leak reaches electrical parts. A corroded tank under warranty should be claimed rather than repaired. If buying a fresh unit, see our guide to the best AO Smith geysers in India.
Frequently Asked Questions
Is it normal for an AO Smith geyser to drip from the valve?
A few drops from the pressure-relief valve during heating are normal as the water expands. A constant stream is not normal and points to high pressure or a worn valve.
Why is water leaking from the bottom of my geyser?
A leak from the base usually means the inner tank has corroded and developed a pinhole. This is not a DIY repair and is typically handled under tank warranty.
Can I fix a leaking geyser valve myself?
You can replace a worn safety or drain valve yourself after switching off power and draining the tank, but if you are unsure, have a technician do it.
Does hard water cause geyser leaks?
Yes. Hard water accelerates internal corrosion and scale, which over years can lead to tank pinholes and leaks. Regular flushing slows this down.