Hello. I recently puchased the standard Guanli Catalina (brushed motors), and have been leisurely putting it together - this is my first rc, and I want to be sure everything is right. I thought it would be a good idea to test the servos and motors before attaching the wing, so I turned on the tx, then plugged the charged battery into the plane. At first, the rudder and elevator servos worked fine, but the aileron servos would not move. I disconnected the battery and double-checked that I had the wires connected properly (they were correct). I tried it again, and this time got a loud buzzing noise from the aileron servos (stick was neutral). After a few seconds, the buzzing noise became more subdued, then stopped. At this point, the rudder and elevator servos started moving back and forth, and continued to do so as long as the battery was attached (rudder control stick was in neutral position, as were all trim switches). Moving the aileron stick resulted in a soft buzz from the appropriate servo, but the shafts did not move.

Any suggestions on what I can do to correct these problems would be appreciated. My Nitroplanes order # is yhst-17210252890263.

Thanks!