BoilerFaultCodesYour smart thermostat is struggling to talk to your boiler's wireless receiver, making it difficult to control your heating remotely or automatically.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Check Smart Interface is in paring mode (Zigbee LED flashing red). Check distance between Smart Interface and Halo. Reset Smart Interface by inserting a paper-clip or pen tip into reset button. Start pairing mode again on the Smart Interface and press retry on the Halo. If the situation persists then consider using Zigbee Booster.
What causes this fault?
This fault occurs when the wireless connection between your thermostat and the boiler's receiver is interrupted or blocked. The most common reasons include physical distance being too great, thick walls hindering the signal, or interference from other electronic devices in your home.
DIY fix possible
Ensure the Smart Interface on the boiler has a flashing red light (pairing mode).Move the Halo thermostat closer to the boiler interface to improve the signal.Use a paperclip to press the reset button on the Smart Interface and tap 'Retry' on the Halo screen.
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