I’m having a issue on my right nozzle. The H2D keeps telling me to pull the filament out of the extruder. I’ve taken the print head apart and there is no filament in there. I changed out the nozzle to a new one and still have the same issue. Wiki doesn’t have anything about this error other than to pull out the filament. I know there is no filament because I can slide a filament from top all the way to the bottom and pull it out.
Can we assume you’ve checked your PTFE paths for broken filament?
If not, that should be your next step — and also check the filament sensor.