Water heater leaking from the top around piping connections

Safety first: Turn off power or gas and close the cold water supply valve. Allow the heater to cool before working on piping.

• Dry and inspect: Wipe the top of the Giant heater dry and observe where water reappears—around hot, cold, or T&P connections.
• Check tightness: Use a pipe wrench to gently tighten the leaking nipple or fitting. Do not overtighten and damage the tank.
• Reseal fittings: If tightening does not stop the leak, drain the tank below the top fittings, remove the leaking nipple, apply fresh pipe thread sealant or Teflon tape, and reinstall.
• Replace corroded parts: Replace any heavily corroded nipples or dielectric unions with new Giant‑approved fittings.
• Refill and test: Open the cold supply, purge air at a hot tap, and check for leaks before restoring power or gas.