Ariston
Freeze Damage / Burst Components
Ariston water heater installed in a cold area freezes or shows signs of frost damage.
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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
Heater installed in unheated space without frost protection, No drain-down during freezing conditions, Failed built-in anti-freeze function (if equipped), Lack of insulation on pipes
How to Fix / Troubleshooting
Safety first: Turn off power and water supply. Do not energize a frozen heater.
- Thaw slowly: Allow the unit to warm naturally or use gentle ambient heat. Do not use open flames.
- Inspect for leaks: Once thawed, slowly pressurize the system and check for cracks in the tank, heat exchanger, or fittings.
- Replace damaged parts: Any split pipes, fittings, or tanks must be replaced. A burst tank requires full heater replacement.
- Implement freeze protection: Insulate pipes, relocate the heater, or ensure anti-freeze mode is enabled according to Ariston instructions.
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Repair Difficulty
Professional Required
5/5
Required Part
Complete Water Heater or Damaged Piping
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