The E00040000.10 error appears on Rika pellet stoves when the connection between the motherboard and the touchscreen is interrupted. Solution Let the stove cool down and unplug it from the power outlet Disconnect the power supply for at least 10 seconds Plug the stove back in and wait for it to restart If the error recurs, a technician must be called. A broken cable or a short circuit can also cause this error message.