A.O. Smith Normal Condensation or Minor Leak

Condensation or water pooling around the base of an A.O. Smith gas water heater shortly after installation.

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Possible Causes

Cold water entering a warm environment causing condensation, High-efficiency flue condensation, Slight leak at fittings above the tank

How to Fix / Troubleshooting

Safety: Ensure that water is not leaking from critical safety devices, such as the T&P (Temperature and Pressure) relief valve.

  • 1. Wipe dry: Thoroughly dry the affected area and observe it closely during a full heating cycle.
  • 2. Check for condensation: If moisture appears only during the initial heat-up phase and then ceases, it may be normal condensation.
  • 3. Inspect fittings: Carefully examine all plumbing connections and fittings located above the tank for any signs of drips or leaks. Tighten or reseal as needed.
  • 4. Venting: On high-efficiency models, ensure that condensate from the flue system is properly drained and not dripping onto the floor.
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Repair Difficulty

Very Easy 1/5

Required Part

Condensate Drain System
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