Netatmo Relay Boot or Pairing Loop

Relay LED blinks continuously and never becomes steady; thermostat and app cannot control heating.

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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

Incomplete initial setup, Corrupted configuration, Firmware boot loop, RF pairing failure with thermostat

How to Fix / Troubleshooting

Safety: No internal access is required; do not open the Relay.

  • Complete setup: Open the Netatmo Energy app and follow the installation wizard to finish pairing the Relay with Wi‑Fi and the thermostat.
  • Power‑cycle: Unplug the Relay for 30 seconds, plug it back in, and wait up to 5 minutes to see if the LED stabilizes.
  • Factory reset (if available): Use the app or the physical button sequence (refer to Netatmo documentation) to reset the Relay and re‑install it from scratch.
  • Check RF distance: Place the thermostat close to the Relay during pairing to ensure a strong signal.

If the LED never stabilizes after reset and proper setup, the Relay firmware or hardware may be defective; replacement is recommended.

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Repair Difficulty

Medium 3/5

Required Part

Netatmo Relay Module
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