1. A scaled-up heating element
On the French Riviera, hard water quickly scales the heating element, which then heats poorly and eventually fails. Regular descaling extends the appliance's life and limits electricity use.
2. A faulty thermostat
If the water is too cold or scalding hot, the thermostat is often to blame. Replacing it is a routine job that restores normal operation without changing the whole water heater.
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3. A worn anode
The anode protects the tank from corrosion. When it is worn, the tank deteriorates and leaks appear. Checking and replacing the anode during servicing avoids premature tank replacement.
4. An electrical problem
A tripped breaker or a faulty day/night contactor can cause the lack of hot water. A diagnosis avoids dangerous handling.
5. A tank at the end of its life
Beyond 10 to 12 years, a water heater becomes unreliable and energy-hungry. Replacing it with a recent, better-insulated or thermodynamic model is often more cost-effective than a repair.
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