04/27/2026
Nope, just AC
Air conditioning may be the furthest thing from your mind as you read this after having just thrown another log on the fire. But, with the way time flies these days, it won’t be long before you’ll be most thankful to be able to walk into a cooled room. That’s why it’s important that you attend to your AC unit sooner rather than later. Following is some information that just might be helpful in doing just that. There are two major “types” of air conditioning units, indoor and outdoor, and we are going to take a quick look at both.
Indoor units
Inspect & clean accessible parts:
With the power off, remove the access panel on the unit if you know how to do so safely. Use a vacuum with a brush attachment to remove dust from the blower wheel and surrounding area. Wipe down surfaces with a damp cloth and mild soap if needed. Do not spray liquids directly into electrical components or control boards. Reassemble the panel securely when finished.
Replace or clean the air filter
The filter protects the system and the indoor air. A clogged filter makes the unit work harder and can reduce cooling performance. Replace disposable filters according to the manufacturer’s guidance, commonly every 1 to 3 months, and more frequently if you have pets or high dust levels. If you use a reusable filter, clean it according to the product instructions and dry it fully before reinstalling.
Outdoor units
Check for visible damage
Look for signs of oil leaks, loose electrical connections, or damaged insulation on refrigerant lines. Do not attempt to repair refrigerant lines yourself. Any sign of oil, hissing, or refrigerant odor warrants a professional HVAC technician call.
Clean the condenser fins and coils
Over the winter, fins can bend and coils can gather dirt. Gently remove loose debris with a soft brush. For more thorough cleaning, use a garden hose on a gentle spray from the inside out (not directly against the fan or coils). Avoid high pressure washing, which can bend fins and cause damage. If fins are bent, a fin comb can straighten them carefully following the tool’s instructions.
Clear space and debris
The outdoor condenser should have unobstructed airflow. Clear leaves, grass, and debris from around the unit and keep at least 2 to 3 feet of clearance on all sides, with 5 feet of clearance above the unit if possible. Trim nearby plants and avoid storing items near the condenser that could shade or restrict airflow.
Special consideration needs to be given to the drainage and condensate line:
Inspect the condensate pan and overflow safety
Check the condensate pan for cracks or corrosion and ensure the overflow switch (if present) is functional. A working overflow switch can prevent water from backing up into the home.
Test the condensate drain
Proper condensate drainage prevents water damage and mold growth. Locate the condensate line and pour a small amount of water through the outlet to confirm it drains freely. If you notice slow drainage or standing water in the drain pan, clear the line gently with a wet/dry vacuum or a non-corrosive cleaning solution recommended by a technician. Do not use harsh chemical cleaners that could damage the line.
While most of us can accomplish these tasks most readily, there are times when an AC Pro may need to be called in. Ways you can tell you need to make that call include:
• AC is not cooling adequately despite a clean filter and proper thermostat settings.
• There are signs of refrigerant leaks, such as oily spots on lines or hissing noises near the outdoor unit.
• There is ice on the refrigerant coil or the outside unit is excessively warm or not coming on at all.
• You hear unusual noises, such as grinding or banging, or you smell burning or chemical odors.
• You notice water leaks inside the home or persistent drainage problems.
This may be the year that you have determined that you have suffered through your last sweltering summer and that you are going to treat yourself and the family to an air conditioner. If that is the case, the following information may prove most beneficial to you.
Types of air conditioning units
Central air conditioning
For whole-house cooling, central air conditioning systems are a popular choice. These systems use ductwork to distribute cool air throughout the home. They offer:
• Consistent cooling for entire homes
• Can also incorporate heating with a heat pump
• Generally more energy-efficient for larger homes
However, installing central air has significantly higher upfront costs, typically as much as $3,900–$7,900, according to Angi, and requires ductwork installation.
Portable air conditioners
Portable units offer flexibility, allowing you to move cooling from room to room. They’re a good choice for renters or those who can’t install permanent units. Advantages of portable AC units include:
• No permanent installation required
• Can be stored when not in use
• Suitable for rooms without suitable windows for window units
Keep in mind that portable units are generally less efficient than window models and require venting through a window or wall.
Through-the-wall models
Through-the-wall air conditioners are similar to window units but are permanently installed in a wall opening. They’re an excellent option for rooms without suitable windows or for those who want to preserve their window views. Benefits of these air conditioners include:
• Don’t block windows
• More secure than window units
• Often more energy-efficient than portable models
However, installing a through-the-wall unit is more complex and typically requires professional help.
Window units
Window air conditioners are popular for their affordability and ease of installation. They’re ideal for cooling single rooms or small apartments. Benefits of these units include:
• Cost-effectiveness for small spaces
• Easy to install and remove
• Various sizes available (5,000 to 25,000 BTU)
However, window units also have drawbacks. They can block the view out of your window, and some units may not be suitable for all window types.
Air conditioning is an excellent way to enjoy your summer even more, and, without a doubt, is well worth the investment in time and money for installation and maintenance.
If you would like assistance with prepping or installing your air conditioning units, and/or accomplishing other tasks that homeowners face this time of year, give us a call.
We can also assist you with a myriad of other concerns a property owner has, so please feel free to contact Allen Brothers Company at (518) 863-2895.
We do everything.
This post was written, in great part, with information gleaned from the following sources:
How to Prepare Your AC for Summer: A Practical Homeowners Guide - Cooling and Heating Repair
What You Need to Know to Choose an Air Conditioner - This Old House