BoilerFaultCodes Zigbee Red (flashing) Low
Boiler Fault Code Zigbee Red (flashing)
Also written as ZIGBEEREDFLASHING — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Zigbee Red (flashing) appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your smart thermostat is currently in pairing mode and is searching for a connection to your heating system or internet gateway. (As reported on Ideal Halo Air RF WI FI 2 Zone)
Pick your boiler brand for the Zigbee Red (flashing) fix
Source
Information for the Zigbee Red (flashing) fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026