Fondital
Internal Water Leak
Water heater leaks water from the bottom of the casing.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Leaking plate heat exchanger, Corroded primary heat exchanger, Faulty safety valve, Loose hydraulic connections
How to Fix / Troubleshooting
Safety: Turn off power and close water and gas supplies. Water may damage electronics.
- Identify source: Remove the front cover and carefully inspect for the origin of the leak (heat exchanger, valves, joints).
- Tighten joints: Gently tighten any accessible compression fittings that are visibly leaking.
- Safety valve: If water is discharging from the safety valve outlet, check system pressure; if too high, the expansion vessel may be faulty.
- Replace leaking components: A leaking heat exchanger or plate exchanger must be replaced by a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Primary Heat Exchanger
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