My '73 was doing the same thing intermittently. one
spring was disconnected(the doors are spring loaded) and the motor had old,
dried grease in it. i reconnected the spring, disassembled the motor,
cleaned and lubed it, and it works fine now. if it is cold where you are,
i would consider opening them manually and disconnecting the power
wires until spring. I think the buzzer will be silent once you
disconnect the wires, and it will give you time to properly overhaul the
actuator.
dj
Recently my 73 Imp has been making a slight buzzing |