This video is regarding air conditioner services. Leaks are a major cause of problems. Water and air can leak into the system. Water damage, rust and refrigerant leaking all make the unti ineffiecient. You should evaluate the unit regularly and also run it periodically to keep the system from working properly.The manual should provide a good amount of information that will help you ensure you are not doing anything to damage the system of repair it incorrectly.
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