Netatmo Device Overheating

Thermostat or valves feel unusually warm to the touch and may behave erratically.

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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

Installation on hot surface (e.g., radiator, boiler casing), Direct sunlight exposure, Internal short or failing component, Blocked ventilation around Relay

How to Fix / Troubleshooting

Danger: Overheating electronics can fail or, in rare cases, pose a fire risk. Disconnect power if you smell burning.

  • Relocate devices: Move the thermostat away from radiators and direct sunlight. Ensure the Relay is not placed on top of the boiler or inside a hot cabinet.
  • Provide ventilation: Keep at least a few centimeters of space around the Relay and thermostat for airflow.
  • Power‑cycle: Turn off power to the Relay for 10 minutes to allow it to cool, then restore power and observe.
  • Monitor temperature: If the device quickly becomes hot again without external heat sources, disconnect it and arrange for replacement.

Persistent self‑heating indicates an internal fault; replace the affected Netatmo device.

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Repair Difficulty

Medium 3/5

Required Part

Netatmo Relay Module
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