E07
Delta Dore Zigbee / RF Module Initialization Error

E07 appears and the thermostat cannot join the Zigbee or proprietary Delta Dore mesh network; no remote control via app.

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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

Corrupted RF module firmware, RF module not seated correctly on main PCB, Strong RF interference, Hardware failure of RF chip

How to Fix / Troubleshooting

Safety first: Disconnect power before opening any mains-powered thermostat.

  • Restart devices: Power cycle both the thermostat and the Tydom or central gateway. Wait 5–10 minutes for the network to rebuild.
  • Check distance and obstacles: Ensure the thermostat is within recommended range of the gateway or a repeater module. Avoid metal cabinets and thick reinforced walls.
  • Factory reset network settings: On the thermostat, go to Menu > Connectivity > Reset network (or similar) and then rejoin the network via the app.
  • Inspect RF module (advanced): If the thermostat has a plug-in RF/Zigbee module, remove the front cover and gently reseat the module on its connector. Do this only with power off.

If E07 remains after resets and re-pairing, the RF module or main PCB is likely faulty and should be replaced by a professional.

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Repair Difficulty

Hard 4/5

Required Part

Delta Dore RF/Zigbee Communication Module
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