I recently completed a job repairing an AC unit for a customer. Upon inspection, I found that the unit's capacitor was faulty. A capacitor helps to regulate the voltage in an AC unit, and in this case, it was causing the unit to malfunction. I replaced the faulty capacitor with a new one and tested the unit to ensure it was working properly. The unit was tested and found to be working correctly. The customer was satisfied with the repair, and I provided them with tips to maintain their AC unit to avoid future issues.