Water heater is leaking from the bottom of the Takagi unit.

Safety first: Turn OFF power and gas. Close the cold water supply to the heater. Water leaks can damage electronics and structure; address promptly.

Steps:

• 1. Isolate and drain: Close inlet and outlet isolation valves. Open a hot tap to relieve pressure. If necessary, drain the unit per the manual.
• 2. Remove cover and inspect: Look for the source of the leak: fittings, heat exchanger, or internal piping. Check for signs of corrosion or freeze cracking.
• 3. Tighten or replace fittings: Slightly tighten any loose unions or compression fittings. Replace any visibly damaged O-rings or gaskets.
• 4. Heat exchanger damage: If water is seeping from the heat exchanger body, the exchanger must be replaced by a qualified technician; repair is not practical.