Is Your AC Ready for Summer? A Comprehensive Checklist

With rising temperatures, being sure your air conditioning (AC) system is ready for the job is more important than ever. At MJK Mechanical, we know how crucial it is to have a working AC unit when those hot summer days are just around the corner. But don’t worry, this guide will help you with a detailed walk-through of what to check when planning for summer in your air conditioning system. Here is what to do so you avoid having a non-functioning system during your usage times.

Understanding Your AC System

Basics of Air Conditioning

When it comes to maintaining indoor comfort, air conditioning systems are helpful because they help in heat and humidity removal from your home. These parts are the evaporator coil, condenser, compressor, and expansion valve. Learning these will allow you to troubleshoot common problems and ensure they are functioning properly.

The Importance of Regular Maintenance

Regular maintenance is necessary for the preservation of your units and optimal efficiency outputs. If you fail to do this, then your energy bills are going to rise and the system is going to need fixing more often and being replaced sooner. But, by having your AC checked and repaired in advance as we approach the peak of summer you can avoid any unexpected troubles and expenses.

Pre-Summer AC Checklist

  • Indoor Checks

Air Filter Replacement

Replace the Air Filter A dirty or clogged air filter will restrict airflow, decreasing efficiency and causing extra strain on your system. Inspect your filter each month and replace it as necessary, normally every 90 days.

Thermostat Settings

Make sure your thermostat is working properly and set at a comfortable temperature (76-78 degrees Fahrenheit). If you don’t have a programmable thermostat, look into getting one; it’s way easier to manage temps and save energy.

Check Air Vents

Inspect all air vents around your home to ensure they are open, unblocked, and dust-free. Blocked or dirty vents can hinder the performance of your AC system, reducing its efficiency and effectiveness.

  • Outdoor Checks

Condenser Unit Inspection

The outdoor condenser unit should be clear of debris, leaves, and dirt. These can obstruct the airflow and diminish the system’s cooling ability. Make sure there are at least two feet of clearance around the condenser for optimal performance.

Inspect Refrigerant Lines

Inspect refrigerant lines between your indoor unit and outdoor units. These must be insulated and in excellent condition for proper use. Cracks or leaks, on the other hand, demand professional attention right away.

Check for Unusual Noises or Odors

Strange Sounds or Smells from the AC Unit Strange noises and odors of a mechanical nature come next. If your furnace starts making odd noises or emitting weird smells, be sure to reach out to a Penticton HVAC professional at MJK Mechanical for repairs and maintenance.

Professional Maintenance

Why Professional Help is Essential

While many aspects of air conditioning maintenance can be DIY, certain checks and repairs require the expertise of a trained technician. Professional servicing ensures that all components of your system are thoroughly inspected, cleaned, and repaired if necessary.

What to Expect During a Professional AC Service

A comprehensive AC service by MJK Mechanical will typically include:

  • System performance check: Ensuring all parts are functioning correctly.
  • Refrigerant level check: Adding more if levels are low.
  • Component inspection: Including the evaporator coil, compressor, and more.
  • System cleaning: Removing debris from the condenser, evaporator, and other components.
  • Efficiency evaluation: Making sure the system operates at peak efficiency.

Scheduling Your Service

It’s advisable to schedule your AC maintenance in the spring, well before the summer heat sets in. This not only ensures your system is prepared but also gives you a better chance of scheduling a convenient time as service calls peak in the hot months.


Ensuring your AC is ready for summer isn’t just about comfort; it’s also about cost-effectiveness and energy efficiency. Use this checklist as a guide to prepare your system for the upcoming heat, and remember, professional maintenance from MJK Mechanical is just a call away. Visit our website at MJK Mechanical to schedule your pre-summer AC check-up and enjoy a cool, comfortable home all summer long.

Remember, a well-maintained AC unit not only keeps you cool but also saves money by operating more efficiently and reducing the likelihood of emergency repairs during the hottest days of the year.


Replace your air filter every 90 days, or more frequently if you have pets or allergies.

Checking the thermostat ensures it is functioning correctly and set to an optimal temperature for comfort and energy efficiency.

Clear any debris, leaves, and dirt from around the condenser unit to ensure proper airflow and system efficiency.

Low refrigerant levels may cause your AC to produce less cool air and increase energy consumption. It’s best checked by a professional during a service visit.

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