How to Tune-Up an AC Unit


As winter comes to an end and the warmer weather begins to approach, it is time to take out your conditioning system. After many months of laying dormant, you might have to call for professional assistance to ensure your AC is up to par for the demand and use it will carry during the summer.

If you reside in the area and are seeking air conditioning service experts in Rancho Cucamonga contact the best in the business. Get in touch with the experts at 4 Points A/C and Heating, to make the necessary changes in the AC system settings, clean it, and lubricate the mechanical components so that the AC system can function smoothly and efficiently.

If you are interested in tuning up your AC system yourself, here are some tips that you can use to increase the AC system’s performance.

Expert Tips For Tuning Up Your AC System.

Here are a few budget-friendly ways of doing AC tune-ups:

Change the AC Filters

The first step in a tune-up is to replace the air filters. Dirty filters can restrict airflow, making the unit work harder, leading to increased energy consumption and reduced efficiency. Moreover, they can pollute the indoor air. Replace the air filter at the beginning of the summer season and clean them weekly with a brush or wash it.

Check the refrigerant tubes.

Check the insulation around the refrigerant tubes and ensure it’s in good condition. If the insulation is damaged, call our air conditioning service experts in Rancho Cucamonga to replace it to prevent energy loss and keep the refrigerant from escaping. Now, take a look at the refrigerant coils inside the outdoor unit. If you see small holes, call our experts to fix them before it results in leakage.

Check the drain pipe.

The drain pipe helps remove condensation from the unit. If it’s clogged, it can lead to water leakage and mold growth. If the pipe is clogged, use a long brush or rod to remove it. After its removal, pour down a spoonful of baking soda and a cup of vinegar into the pipe. Now, pour a pan full of hot water to clean it properly. If the water goes down the pipe smoothly, congratulations, you have successfully cleaned the condensate drain pipe.

Check the condensate drain pan.

The overflow pan is located beneath the AC unit. Ensure it is debris-free. If you see a crack in the pan, you can use any sealant to fix it or call the experts to replace it.

Clean and straighten condenser fins and coils.

The fins can become bent, dirty, or clogged, reducing the unit’s efficiency. Clean the fins with a soft brush or clean cloth. You can get a fin comb from our AC tune-up service center in Rancho Cucamonga to straighten the bent fins.

If the coils are covered with dirt, you can use a mild coil cleaning agent or dishwasher soap to clean the coils thoroughly.

Why Call The Experts For An AC Tune-Up?


There are tasks that only professional experts can handle, which include the following:

  • Checking the refrigerant levels.
  • Examine the electrical connection
  • Inspect the compressor and evaporator coils.
  • Measure the pressure and voltage levels.
  • Check the blower assembly components.


You can follow a few tips to tune up your AC system, but do not forget the importance of professional AC tune-up and maintenance. Experts at 4 Points A/C and Heating, can help you maintain efficiency levels. Call (909) 970-4440 to schedule AC tune-up service in Rancho Cucamonga and the surrounding areas.