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If you maintain your air conditioner regularly, youâll save money on energy, as well as prolong the life of the unit. An annual tune-up can help your AC operate at almost 100% efficiency.But you will pay for every year you forget to have it serviced: You lose about 5% of its original efficiency and that costs you on your electricity bill.Air conditioners use a lot of energy; youâll notice your electricity bill climbing significantly in the summer months.n air conditioner needs regular maintenance â filter changes, as well as annual tune-ups, yet it seems to be the most forgotten appliance. Thatâs probably because itâs outside and is only used for part of the year in colder climates.
Procedures for checking the refrigerant level do not vary much from one to the other. The best way to check the refrigerant level (whether it is Freon or R-134a) is to hook up a pressure gauge assembly to the service valves. This tool has two hoses that connect to the high and low sides of the car's AC system.A third hose connects to a recovery or recycling tank. The recovery and recycling tank for R-134a is blue, while the R-12 tank is white. 2  Do not hook up the wrong tank, or your AC system could be ruined. ( 3 Most AC systems are designed to prevent this from happening, but bear it in mind. 4  Use care not to expose your skin to any refrigerant, as it may cause frostbite.