Central Air Conditioner Cycles Too Often & Will Not Cool

Problems

• If your central air conditioning unit cycles too often and doesn't cool as efficiently as it used to, it's likely that you have a dirty filter or drain or that your ducts are leaking. Cold air must travel from the condenser through the entire duct system. If there is a problem anywhere along the line, the condenser can overheat and begin to cycle more frequently. If the air conditioner is new, you may have underestimated how much cooling power is needed. Improper wiring could also be the culprit.

Implications

• Even though the unit isn't cooling properly, the motor is still working. If it's cycling frequently, that means it's working overtime. Eventually, the motor will wear out and possibly burn out, requiring complete repair or replacement. Additionally, if the unit isn't functioning properly, it's using up a lot more energy and costing you more money than necessary. If not taken care of, clogs in the filter or leaks can become more costly and difficult to repair.

Solutions

• Check the filter, fins and condensate drains for clogs and replace or clean them as necessary. Check the seals between each section of duct work for leaks. Check the electrical connections to ensure that the unit was installed properly. If you don't know much about duct work or electrical connections, you'll need to call a central air conditioning technician. Ask questions during and after the repair so that you're able to evaluate future issues more accurately.

Maintenance

• Check the unit once each month until you have a better idea of how quickly it becomes dirty and clogged. Replace or clean the filter and check the coils for buildup at this time. Clean the coils and fins as necessary. Remove any clogs in the condensate drains with a stiff wire. Cover the condenser during winter months and hire a professional to check the entire unit every two or three years.