Weishaupt
System water leak
Water leaking from furnace or boiler 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 heat exchanger, Leaking pipe connections, Faulty pressure relief valve, Condensate leak misidentified as water leak
How to Fix / Troubleshooting
Safety: Turn off power if water is leaking onto electrical components. Hot water can cause burns.
Steps:
- Identify source: Try to determine if the leak is from a pipe joint, relief valve, condensate trap, or inside the heat exchanger.
- Relief valve: If water is dripping from the pressure relief valve discharge pipe, note the system pressure. Overpressure may indicate expansion vessel issues.
- Condensate: For condensing units, check that the condensate trap and hoses are intact and not overflowing.
Leaks from the heat exchanger or relief valve require professional repair or replacement.
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Repair Difficulty
Hard
4/5
Required Part
Pressure Relief Valve
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