Went for a out on system. Unit was off outside. Noticed 24 wire was chewed off. Did repair wiring and system is up and running. But checked charge and does have a leak in system slowing buildup. Compressor is running close to max rating. Capacitor is low but still within range at this time. Did clean unit and notified customer about the concerns on system. Age of air conditioner is 21 years old. Did signed up for the membership for customer.Thank you for choosing LBA services-Johann