Water heater leaks water from the bottom of the casing

Safety: Turn off power and close the cold water inlet immediately. Hot water leaks can cause scalding and electrical hazards.

• 1. Isolate and drain: Close the cold inlet and open a hot tap to relieve pressure. Place a tray under the heater.
• 2. Remove front cover: Carefully remove the cover and inspect for the leak source: joints, valves, or heat exchanger.
• 3. Tighten unions: Gently tighten any accessible compression or union fittings that are dripping. Do not overtighten.
• 4. Check safety valve: If water is coming from the discharge pipe, the DHW safety valve may be opening due to overpressure or failure. A technician should test and replace it if necessary.
• 5. Replace leaking components: If the secondary plate heat exchanger or internal manifolds are cracked or corroded, they must be replaced by a professional.