I’m using a Raspberry Pi, a PCA9685 controller, and a servo to control the air intake lever on my woodstove based on stove and room temperatures. My code adjusts the servo position every 2 minutes and there is no force from the stove lever on the servo except when it’s moving to a new position (and the servos were perfectly quiet when idle). The system runs 24/7 and is working great. Except that now two servos have burned out – the first lasted 6 weeks and the 2nd one only 4 (seems the internal electrics failed, all the gears are fine). Are servos designed to be “on” 24/7 for months at a time? If not, is there a way to turn the servo off via the PCA9685 controller to lengthen its lifespan?