Fear

Hey all, I bought a JR Z9100T a few weeks ago to replace my steering servo. It has been good up until today, when it started making a squeaky door hinge-type sound. There is a noticeable loss of torque and speed when the sound comes out, and additionally, will make the noise when the car is off and the servo is turned by hand. Any ideas? I have already emailed JR about it, but I'm wondering what you guys might think.