ZONE CONTROL SYSTEM DAMPER MOTOR REPLACEMENT INSTRUCTIONS FOR STOCK #6993 WARNING 120 Volts may cause serious injury from electrical shack, Shut off power to control panel at circuit breaker before servicing the unit. Sharp edges may cause serious injury from cuts. Use care when working around duct work. INSTRUCTIONS Shut off power to control panel at circuit breaker. Gently squeeze longer sides of plastic miter caver and pull to remove cover from base.