Master bedroom stat wasn't communicating with zone hub. Reset unit and fault dropped out. Found wire at zone damper broken and not making good connection. Cleaned up wire and reconnected. Zone ductwork is insufficient. Zones are too small and duct to master bedroom is too small Tobe it's own zone. Recommend a ductwork audit to take some time and map out ductwork for master suite area or see if it's worth just disabling zoning. Low Voltage wires seem to be getting interference from high voltage. Couldn't find lennox module for master bedroom unit. May need to reroute low voltage wires or pull new.